[go: up one dir, main page]

US20040265405A1 - Hot press tool - Google Patents

Hot press tool Download PDF

Info

Publication number
US20040265405A1
US20040265405A1 US10/609,982 US60998203A US2004265405A1 US 20040265405 A1 US20040265405 A1 US 20040265405A1 US 60998203 A US60998203 A US 60998203A US 2004265405 A1 US2004265405 A1 US 2004265405A1
Authority
US
United States
Prior art keywords
hot press
press tool
group
produced
punch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/609,982
Inventor
Devrim Akyuz
Tamer El-Raghy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hilti AG
3One2 LLC
Original Assignee
Hilti AG
3One2 LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hilti AG, 3One2 LLC filed Critical Hilti AG
Priority to US10/609,982 priority Critical patent/US20040265405A1/en
Assigned to HILTI AKTIENGESELLSCHAFT, 3-ONE-2, LLC reassignment HILTI AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: AKYUZ, DEVRIM, EL-RAGHY, TAMER
Priority to KR1020040040947A priority patent/KR20050005755A/en
Priority to CNA2004100600670A priority patent/CN1576380A/en
Priority to EP04103027A priority patent/EP1496031A1/en
Priority to JP2004190936A priority patent/JP2005021987A/en
Publication of US20040265405A1 publication Critical patent/US20040265405A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/02—Compacting only
    • B22F3/03—Press-moulding apparatus therefor
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
    • C04B35/5607—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on refractory metal carbides
    • C04B35/5611—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on refractory metal carbides based on titanium carbides
    • C04B35/5615—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on refractory metal carbides based on titanium carbides based on titanium silicon carbides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
    • C04B35/5607—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on refractory metal carbides
    • C04B35/5611—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on refractory metal carbides based on titanium carbides
    • C04B35/5618—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on refractory metal carbides based on titanium carbides based on titanium aluminium carbides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • C04B35/58007—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on refractory metal nitrides
    • C04B35/58014—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on refractory metal nitrides based on titanium nitrides, e.g. TiAlON
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • C04B35/645—Pressure sintering
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/16—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on nitrides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/40—Metallic constituents or additives not added as binding phase
    • C04B2235/402—Aluminium

Definitions

  • the present invention relates to a hot press tool for producing workpieces by a hot process and formed of at least two elements.
  • workpieces are produced of a basic powder material by using a powder metallurgical process, with formation of the workpieces with hot press tools under high pressure and high temperature.
  • the workpieces produced with the hot press process are, e.g., abrasive segments for annular bits.
  • the hot press tools which are used in the hot press process, are usually formed of graphite and hard metal.
  • a drawback of the conventional hot press tools formed of graphite is their low wear-resistance and fracture-resistance. They also have a low oxidation resistance at high temperatures.
  • the drawbacks of the hot press tools formed of hard metals consist in their large weight, their difficult machinability, and their limited temperature and oxidation resistance. Because of their low or limited oxidation resistance, the hot press tools are used under an inert atmosphere.
  • an object of the present invention is to provide a hot press tool that can be economically used under natural atmospheric conditions.
  • Another object of the present invention is a hot press tool having a high wear-resistance and which is easily machinable.
  • a hot press tool of at least one material selected from a group consisting of materials characterized by formula M n+1 AX n , wherein
  • M is an element selected from the group consisting of Sc, Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, and W;
  • A is an element selected from the group consisting of Al, Si, P, S, Ga, Ge, As, Cd, In, Sn, Tl, and Pb;
  • X is an element selected from the group consisting of C and N.
  • the materials of the compound M n+1 AX n are ceramic materials and, as such, have mechanical characteristics which do not depend on temperatures.
  • the hot press tools, which are produced from a compound M n+1 AX n have a high wear-resistant and are easily machinable.
  • the high oxidation resistance of the hot press tools, which are produced from compounds M n+1 AX n at high temperatures permits to use the tools produced from these materials under natural atmospheric conditions.
  • the hot press tools, which are produced from the compound M n+1 AX n can be formed with an electrical conductance similar to that of hard metal.
  • the hot press tools are produced from powder materials by using a powder metallurgical process in per se known manner with a desired shape.
  • the hot press tools can, e.g., be produced with a final shape and dimensions, i.e., be “net shaped.”
  • the hot press tools which are produced from a compound M n+1 AX n , can be produced in a basic form and be brought into a final form by subsequent processing.
  • the hot press tools in a basic form can be then subjected to electroerosion machining, grinding, drilling, sawing, etc.
  • the hot press tool produced from this compound is characterized by a particularly good mechanical characteristic.
  • a hot press tool is essentially entirely produced from a material selected from a group of materials M n+1 AX n .
  • a hot press tool can be produced only partially from the compound M n+1 AX n .
  • the material which is selected from the group M n+1 AX n , forms the outer surface or layer of the tool and constitutes a percentage volume of the entire amount of materials.
  • the outer layer is formed of the compound M n+1 AX n which is applied to a base body.
  • the base body can be formed, e.g., of a hard material on which a layer of a compound M n+1 AX n having an adequate thickness is deposited.
  • the thickness of the outer layer is determined by the required characteristics and by existing conditions during the use of the hot press tool. With such a hot press tool, after the wear of the outer layer, a new layer can be deposited on the base body. Thus, the based body can be used many times.
  • the hot press tool is formed as a punch and/or sleeve.
  • the sleeve can be formed with a bottom, whereby a pot-shaped member is produced.
  • other components of a hot press frame such as, e.g., dies, separation walls, pins, cores, screws, etc., can be produced from a material selected from the group of materials M n+1 AX n .
  • FIG. 1 a schematic cross-sectional view of a hot press frame with a hot press tool according to the present invention
  • FIG. 2 a perspective view of the punch shown in FIG. 1;
  • FIG. 3 a perspective view of the sleeve shown in FIG. 1;
  • FIG. 4 a perspective view of another embodiment of a punch according to the present invention.
  • FIG. 5 a perspective view of another embodiment of a hot press tool according to the present invention.
  • FIG. 1 shows schematically a partial cross-sectional view of a hot press frame 1 with a hot press tool according to the present invention.
  • the hot press frame 1 includes a die 2 with a plurality of recesses 3 (only one recess 3 is shown in the drawing).
  • the hot press tool according to the present invention is formed of three parts, a sleeve 4 which is located in the recess 3 and serves as a first hot press tool, a punch 5 which serves as a second press tool, and a bottom member 8 which is likewise located in the recess and which serves as a third hot press tool.
  • the hot press tool With the formation of the hot press tool of three parts, a produced workpiece 6 is completely surrounded by hot press tools forming the hot press tool according to the present invention. This permits to produce the workpiece 6 under natural atmospheric conditions.
  • the sleeve 4 can be formed integrally with the bottom member 8 as a pot-shaped member.
  • a workpiece 6 which is produced by the hot press process, can be, e.g., preliminary formed as a powered mold, as a cold-pressed workpiece, or as a sintered part and then placed in the sleeve 4 .
  • the punch 5 is displaced in the direction shown with arrow 7 towards the die 2 with a high pressure and at a high temperature until the workpiece 6 is sufficiently compressed.
  • a powder metallurgical process is used for producing the workpiece 6 .
  • the arrangement of the sleeve 4 in the recess 3 can be dispensed with, so that the punch 5 would slide directly along the inner surface of the recess 3 .
  • the punch 5 , the sleeve 4 and, if necessary, the die 2 are produced by using a powder metallurgical process of a material selected from a group of a material characterized as it has already been discussed above, by formula M n+1 AX n .
  • the elements of the hot press tool preferably are produced in a final form. However, the elements of the hot press tool can first be produced in a basic form and then be formed into a final form by using further processing steps, such as cutting, grinding, etc.
  • the punch 5 is formed as a circular cylinder the outer dimensions of which correspond to the inner dimensions of the sleeve 4 or to the inner dimensions of the recess 3 .
  • the punch 5 is produced, as discussed above, from a material selected from a group of materials M n+1 AX n .
  • FIG. 3 shows, as discussed above, a perspective view of the sleeve 4 .
  • the sleeve 4 has a tubular shape and has its dimensions adapted to the outer dimension of the punch 5 and the inner dimension of the recess 3 .
  • the sleeve 4 is formed of a material selected from the group of materials M n+1 AX n .
  • FIG. 4 shows another embodiment of the punch.
  • the punch 11 has a cylindrical basic body 12 provided with an outer layer 13 formed of a material selected from the group of materials M n+1 AX n .
  • the basic body can be formed, e.g., of a hard material.
  • FIG. 5 A further embodiment of a combination hot press tool according to the present invention is shown in FIG. 5.
  • the tool has wall sections 21 . 1 and 21 . 2 which as spaced from each other by separation walls 22 . 1 and 22 . 2 .
  • a square-shaped punch (not shown) is introduced into space 23 defined by the spaced from each other, separation walls 22 . 1 and 22 . 2 .
  • the elements of the combination hot press tool are characterized by their high mechanical characteristics and by flexibility of their formation. It is to be noted that hot press tool having specific shapes can be economically produced.
  • the hot press tool elements can be connected with, e.g., screws which are likewise produced of a material selected from the group of materials M n+1 AX n .
  • Examples of the materials of the group of materials M n+1 X n are compounds TiSiC 2 , Ti 2 AlC, Ti 4 AlN 3 .

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Press Drives And Press Lines (AREA)
  • Ceramic Products (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

A hot press tool for use in a hot press process is formed of at least one material selected from a group consisting of materials characterized by formula Mn+1AXn, wherein
M is an element selected from the group consisting of Sc, Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, and W;
A is an element selected from the group consisting of Al, Si, P, S, Ga, Ge, As, Cd, In, Sn, Tl, and Pb; and
X is an element selected from the group consisting of C and N.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention [0001]
  • The present invention relates to a hot press tool for producing workpieces by a hot process and formed of at least two elements. [0002]
  • 2. Description of the Prior Art [0003]
  • In the hot press process, workpieces are produced of a basic powder material by using a powder metallurgical process, with formation of the workpieces with hot press tools under high pressure and high temperature. Among the workpieces produced with the hot press process are, e.g., abrasive segments for annular bits. [0004]
  • The hot press tools, which are used in the hot press process, are usually formed of graphite and hard metal. A drawback of the conventional hot press tools formed of graphite is their low wear-resistance and fracture-resistance. They also have a low oxidation resistance at high temperatures. The drawbacks of the hot press tools formed of hard metals consist in their large weight, their difficult machinability, and their limited temperature and oxidation resistance. Because of their low or limited oxidation resistance, the hot press tools are used under an inert atmosphere. [0005]
  • Accordingly, an object of the present invention is to provide a hot press tool that can be economically used under natural atmospheric conditions. [0006]
  • Another object of the present invention, is a hot press tool having a high wear-resistance and which is easily machinable. [0007]
    • SUMMARY OF THE INVENTION
  • These and other objects of the present invention, which will become apparent hereinafter, are achieved by forming a hot press tool of at least one material selected from a group consisting of materials characterized by formula M[0008] n+1AXn, wherein
  • M is an element selected from the group consisting of Sc, Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, and W; [0009]
  • A is an element selected from the group consisting of Al, Si, P, S, Ga, Ge, As, Cd, In, Sn, Tl, and Pb; and [0010]
  • X is an element selected from the group consisting of C and N. [0011]
  • The compound M[0012] n+1AXn and its production in laboratory amounts are known since 1967. The variable n preferably amounts from 1 to 3. U.S. Pat. No. 5,942,455 discloses production of this compound in bulk amounts.
  • The materials of the compound M[0013] n+1AXn are ceramic materials and, as such, have mechanical characteristics which do not depend on temperatures. The hot press tools, which are produced from a compound Mn+1AXn have a high wear-resistant and are easily machinable. The high oxidation resistance of the hot press tools, which are produced from compounds Mn+1AXn, at high temperatures permits to use the tools produced from these materials under natural atmospheric conditions. Moreover, by selecting appropriate elements and the variable n, the hot press tools, which are produced from the compound Mn+1AXn can be formed with an electrical conductance similar to that of hard metal.
  • The hot press tools are produced from powder materials by using a powder metallurgical process in per se known manner with a desired shape. The hot press tools can, e.g., be produced with a final shape and dimensions, i.e., be “net shaped.” Alternatively, the hot press tools, which are produced from a compound M[0014] n+1AXn, can be produced in a basic form and be brought into a final form by subsequent processing. The hot press tools in a basic form can be then subjected to electroerosion machining, grinding, drilling, sawing, etc.
  • The selection of the elements and the value of the stochiometric coefficient of a compound M[0015] n+1AXn is based essentially on the preferable characteristics of the hot press tool.
  • Advantageously, from the group M, Ti is selected, from the group A, SI is selected, and from the group X, C is selected, which with a preferable variable n=2, permits to obtain a compound Ti[0016] 3SIC2. The hot press tool produced from this compound is characterized by a particularly good mechanical characteristic.
  • Hot press tools with a particularly good oxidation resistance are obtained when from the group M, Ti is selected, from the group A, Al is selected, from group X, C is selected and n=1, which provides a material Ti[0017] 2AlC.
  • Hot press tools with a high electrical resistance are obtained when from the group M, Ti is selected, from the group A, Al is selected, and from the group X, N is selected and n=3, i.e., the hot press tools are produced from Ti[0018] 4AlN3.
  • Advantageously, a hot press tool is essentially entirely produced from a material selected from a group of materials M[0019] n+1AXn. However, a hot press tool can be produced only partially from the compound Mn+1AXn. When several materials are used for producing a hot press tool, the material, which is selected from the group Mn+1AXn, forms the outer surface or layer of the tool and constitutes a percentage volume of the entire amount of materials.
  • Preferably, in hot press tool, the outer layer is formed of the compound M[0020] n+1AXn which is applied to a base body. The base body can be formed, e.g., of a hard material on which a layer of a compound Mn+1AXn having an adequate thickness is deposited. The thickness of the outer layer is determined by the required characteristics and by existing conditions during the use of the hot press tool. With such a hot press tool, after the wear of the outer layer, a new layer can be deposited on the base body. Thus, the based body can be used many times.
  • Advantageously, the hot press tool is formed as a punch and/or sleeve. The sleeve can be formed with a bottom, whereby a pot-shaped member is produced. Also, other components of a hot press frame, such as, e.g., dies, separation walls, pins, cores, screws, etc., can be produced from a material selected from the group of materials M[0021] n+1AXn.
  • The novel features of the present invention, which are considered as characteristic for the invention, are set forth in the appended claims. The invention itself, however both as to its construction and its mode of operation, together with additional advantages and objects thereof, will be best understood from the following detailed description of the preferred embodiments, when read with reference to the accompanying drawings. [0022]
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • The drawings show: [0023]
  • FIG. 1 a schematic cross-sectional view of a hot press frame with a hot press tool according to the present invention; [0024]
  • FIG. 2 a perspective view of the punch shown in FIG. 1; [0025]
  • FIG. 3 a perspective view of the sleeve shown in FIG. 1; [0026]
  • FIG. 4 a perspective view of another embodiment of a punch according to the present invention; and [0027]
  • FIG. 5 a perspective view of another embodiment of a hot press tool according to the present invention.[0028]
    • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • As discussed above, FIG. 1 shows schematically a partial cross-sectional view of a hot press frame [0029] 1 with a hot press tool according to the present invention. The hot press frame 1 includes a die 2 with a plurality of recesses 3 (only one recess 3 is shown in the drawing). The hot press tool according to the present invention is formed of three parts, a sleeve 4 which is located in the recess 3 and serves as a first hot press tool, a punch 5 which serves as a second press tool, and a bottom member 8 which is likewise located in the recess and which serves as a third hot press tool. With the formation of the hot press tool of three parts, a produced workpiece 6 is completely surrounded by hot press tools forming the hot press tool according to the present invention. This permits to produce the workpiece 6 under natural atmospheric conditions. According to an embodiment of the invention, the sleeve 4 can be formed integrally with the bottom member 8 as a pot-shaped member.
  • A [0030] workpiece 6, which is produced by the hot press process, can be, e.g., preliminary formed as a powered mold, as a cold-pressed workpiece, or as a sintered part and then placed in the sleeve 4. The punch 5 is displaced in the direction shown with arrow 7 towards the die 2 with a high pressure and at a high temperature until the workpiece 6 is sufficiently compressed. Essentially, for producing the workpiece 6, a powder metallurgical process is used. When the die 2 is formed of a material selected from a group of material Mn+1AXn, the arrangement of the sleeve 4 in the recess 3 can be dispensed with, so that the punch 5 would slide directly along the inner surface of the recess 3.
  • The punch [0031] 5, the sleeve 4 and, if necessary, the die 2 are produced by using a powder metallurgical process of a material selected from a group of a material characterized as it has already been discussed above, by formula Mn+1AXn. The elements of the hot press tool preferably are produced in a final form. However, the elements of the hot press tool can first be produced in a basic form and then be formed into a final form by using further processing steps, such as cutting, grinding, etc.
  • The punch [0032] 5, a perspective view of which is shown in FIG. 2, is formed as a circular cylinder the outer dimensions of which correspond to the inner dimensions of the sleeve 4 or to the inner dimensions of the recess 3. In order to insure a high resistance to oxidation and good characteristics at high temperatures and good wear-resistance, the punch 5 is produced, as discussed above, from a material selected from a group of materials Mn+1AXn.
  • FIG. 3 shows, as discussed above, a perspective view of the [0033] sleeve 4. The sleeve 4 has a tubular shape and has its dimensions adapted to the outer dimension of the punch 5 and the inner dimension of the recess 3. To insure the performance capability of the sleeve 4 as a hot press tool in the hot press frame, the sleeve 4, as the punch 5, is formed of a material selected from the group of materials Mn+1AXn.
  • FIG. 4 shows another embodiment of the punch. The punch [0034] 11 has a cylindrical basic body 12 provided with an outer layer 13 formed of a material selected from the group of materials Mn+1AXn. The basic body can be formed, e.g., of a hard material.
  • A further embodiment of a combination hot press tool according to the present invention is shown in FIG. 5. The tool has wall sections [0035] 21.1 and 21.2 which as spaced from each other by separation walls 22.1 and 22.2. A square-shaped punch (not shown) is introduced into space 23 defined by the spaced from each other, separation walls 22.1 and 22.2.
  • The elements of the combination hot press tool are characterized by their high mechanical characteristics and by flexibility of their formation. It is to be noted that hot press tool having specific shapes can be economically produced. The hot press tool elements can be connected with, e.g., screws which are likewise produced of a material selected from the group of materials M[0036] n+1AXn.
  • Examples of the materials of the group of materials M[0037] n+1Xn are compounds TiSiC2, Ti2AlC, Ti4AlN3.
  • Though the present invention was shown and described with references to the preferred embodiments, such are merely illustrative of the present invention and are not to be construed as a limitation thereof and various modifications of the present invention will be apparent to those skilled in the art. It is therefore not intended that the present invention be limited to the disclosed embodiments or details thereof, and the present invention includes all variations and/or alternative of the present invention as defined by the [0038]

Claims (6)

What is claimed is:
1. A hot press tool for producing workpieces by a hot press process, wherein the hot press tool is formed of at least one material selected from a group consisting of materials characterized by formula Mn+1AXn, wherein
M is an element selected from the group consisting of Sc, Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, and W;
A is an element selected from the group consisting of Al, Si, P, S, Ga, Ge, As, Cd, In, Sn, Tl, and Pb; and
X is an element selected from the group consisting of C and N.
2. A hot press tool according to claim 1, wherein the selected material is Ti3SiC2.
3. A hot press tool according to claim 1, wherein the selected material is Ti2AlC.
4. A hot press tool according to claim 1, wherein the selected material is Ti4AlN3.
5. A hot press tool according to claim 1, wherein the at least one material forms an outer layer (13) of the tool deposited on a base body (12).
6. A hot press tool according to claim 1, comprising at least one of a punch (5), (1) and a sleeve (4).
US10/609,982 2003-06-30 2003-06-30 Hot press tool Abandoned US20040265405A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US10/609,982 US20040265405A1 (en) 2003-06-30 2003-06-30 Hot press tool
KR1020040040947A KR20050005755A (en) 2003-06-30 2004-06-04 Hot press tool
CNA2004100600670A CN1576380A (en) 2003-06-30 2004-06-25 Hot press tool
EP04103027A EP1496031A1 (en) 2003-06-30 2004-06-29 Hot press tool
JP2004190936A JP2005021987A (en) 2003-06-30 2004-06-29 Hot press tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/609,982 US20040265405A1 (en) 2003-06-30 2003-06-30 Hot press tool

Publications (1)

Publication Number Publication Date
US20040265405A1 true US20040265405A1 (en) 2004-12-30

Family

ID=33452629

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/609,982 Abandoned US20040265405A1 (en) 2003-06-30 2003-06-30 Hot press tool

Country Status (5)

Country Link
US (1) US20040265405A1 (en)
EP (1) EP1496031A1 (en)
JP (1) JP2005021987A (en)
KR (1) KR20050005755A (en)
CN (1) CN1576380A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009000391A1 (en) * 2007-06-27 2008-12-31 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung_E.V. Coated mechanical component and method for measuring state variables on mechanical components
CN102060555A (en) * 2010-11-24 2011-05-18 西安超码科技有限公司 Method for manufacturing high-strength carbon/carbon hot-press die
US20130189389A1 (en) * 2010-07-30 2013-07-25 Lg Innotek Co., Ltd. Hot press sintering apparatus and press element
US11572298B2 (en) * 2018-05-11 2023-02-07 Entegris, Inc. Molds that include a ceramic material surface, and related methods for making and using the molds

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101185201B (en) * 2005-04-25 2010-06-23 因派科特涂料公司 Smart Cards and Smart Card Readers
RU2421534C1 (en) * 2009-11-10 2011-06-20 Владимир Никитович Анциферов Composite material on base of titanium carbo-silicide
CN102181767B (en) * 2010-12-31 2014-04-30 陕西科技大学 A kind of (Ti, Mo)2AlC/Al2O3 solid solution composite material and its preparation method
CN102181768A (en) * 2010-12-31 2011-09-14 陕西科技大学 A (Ti, nb)2AlC solid solution composite material and its preparation method
CN103184385B (en) * 2013-04-01 2015-03-18 燕山大学 Brake pad friction material with Mn+1XAn layered compound as anti-friction phase and preparation method thereof
DE102016216428A1 (en) * 2016-08-31 2018-03-01 Federal-Mogul Burscheid Gmbh Sliding element with MAX-phase coating
JP6662346B2 (en) * 2017-04-19 2020-03-11 Ｊｆｅスチール株式会社 Refractory and manufacturing method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5028251A (en) * 1987-09-02 1991-07-02 Schott Glaswerke Molds for manufacturing molded glass-articles for precision-optical purposes
US5942455A (en) * 1995-11-14 1999-08-24 Drexel University Synthesis of 312 phases and composites thereof
US6231969B1 (en) * 1997-08-11 2001-05-15 Drexel University Corrosion, oxidation and/or wear-resistant coatings
US6461989B1 (en) * 1999-12-22 2002-10-08 Drexel University Process for forming 312 phase materials and process for sintering the same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0772104B2 (en) * 1987-04-30 1995-08-02 敏雄 平井 Polycrystalline ceramics
US5882561A (en) * 1996-11-22 1999-03-16 Drexel University Process for making a dense ceramic workpiece
SE527199C2 (en) * 2003-02-07 2006-01-17 Sandvik Intellectual Property Use of a material in an oxidizing environment at high temperature

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5028251A (en) * 1987-09-02 1991-07-02 Schott Glaswerke Molds for manufacturing molded glass-articles for precision-optical purposes
US5942455A (en) * 1995-11-14 1999-08-24 Drexel University Synthesis of 312 phases and composites thereof
US6231969B1 (en) * 1997-08-11 2001-05-15 Drexel University Corrosion, oxidation and/or wear-resistant coatings
US6461989B1 (en) * 1999-12-22 2002-10-08 Drexel University Process for forming 312 phase materials and process for sintering the same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009000391A1 (en) * 2007-06-27 2008-12-31 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung_E.V. Coated mechanical component and method for measuring state variables on mechanical components
US20130189389A1 (en) * 2010-07-30 2013-07-25 Lg Innotek Co., Ltd. Hot press sintering apparatus and press element
US9283693B2 (en) * 2010-07-30 2016-03-15 Lg Innotek Co., Ltd. Hot press sintering apparatus and press element
CN102060555A (en) * 2010-11-24 2011-05-18 西安超码科技有限公司 Method for manufacturing high-strength carbon/carbon hot-press die
US11572298B2 (en) * 2018-05-11 2023-02-07 Entegris, Inc. Molds that include a ceramic material surface, and related methods for making and using the molds

Also Published As

Publication number Publication date
KR20050005755A (en) 2005-01-14
EP1496031A1 (en) 2005-01-12
JP2005021987A (en) 2005-01-27
CN1576380A (en) 2005-02-09

Similar Documents

Publication Publication Date Title
US20040265405A1 (en) Hot press tool
Cook et al. Trends and recent developments in the material manufacture and cutting tool application of polycrystalline diamond and polycrystalline cubic boron nitride
RU2429944C2 (en) Composite cutting plates and manufacturing method of them
US6511265B1 (en) Composite rotary tool and tool fabrication method
KR20120070550A (en) Cemented carbide tool and method of making the same
KR20120016643A (en) Compound cemented carbide rotary cutting tools and rotary cutting tool blanks
JP2000054007A (en) Diamond sintered body and method for producing the same
RU2364700C2 (en) Cutter plate or head of tool for application in mining industry and construction and method of their fabrication
CN108472750B (en) Material for rotary cutting edge and method for producing same
JPS63125602A (en) Hard alloy for tools
KR101373965B1 (en) Tool for coldforming operations with improved performance
JP2008069420A (en) Cemented carbide and coated cemented carbide, and manufacturing methods therefor
JPH11124649A (en) Mold parts made of tungsten carbide cemented carbide
CN115066305B (en) Tool body and method for manufacturing the tool body
JP2004268202A (en) Small diameter end mill
US9421611B2 (en) Composite cutting insert and method of making same
EP0286948B1 (en) Workpiece for a watch band
US20160236307A1 (en) Rotary cutting tool blanks and applications thereof
JP2005205470A (en) Punch for head molding of screw parts
JP4636574B2 (en) Ceramic-based sintered material for tool and manufacturing method thereof
JP2004026514A (en) Cubic boron nitride sintered compact and its manufacturing method
JPH11241138A (en) Die part made of cemented carbide
JPH05171334A (en) Hard sintered part and manufacturing method thereof
JPH08252626A (en) Materials for wear resistant tools, dies and centers
JP2814632B2 (en) Composite hard alloy material

Legal Events

Date Code Title Description
AS Assignment

Owner name: HILTI AKTIENGESELLSCHAFT, LIECHTENSTEIN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:AKYUZ, DEVRIM;EL-RAGHY, TAMER;REEL/FRAME:014751/0077

Effective date: 20030702

Owner name: 3-ONE-2, LLC, NEW JERSEY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:AKYUZ, DEVRIM;EL-RAGHY, TAMER;REEL/FRAME:014751/0077

Effective date: 20030702

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION