US20040154366A1 - Tool for a bending machine - Google Patents
Tool for a bending machine Download PDFInfo
- Publication number
- US20040154366A1 US20040154366A1 US10/478,392 US47839204A US2004154366A1 US 20040154366 A1 US20040154366 A1 US 20040154366A1 US 47839204 A US47839204 A US 47839204A US 2004154366 A1 US2004154366 A1 US 2004154366A1
- Authority
- US
- United States
- Prior art keywords
- tool
- tube
- molybdenum
- bending
- fold
- 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
Links
- 238000005452 bending Methods 0.000 title claims abstract description 12
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 6
- 239000011733 molybdenum Substances 0.000 claims abstract description 6
- 229910001182 Mo alloy Inorganic materials 0.000 claims abstract description 4
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000009499 grossing Methods 0.000 description 12
- 229910000906 Bronze Inorganic materials 0.000 description 3
- 239000010974 bronze Substances 0.000 description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 2
- WNMMHBFRTBOEGR-UHFFFAOYSA-F N(=O)[O-].[C+4].[Ti+4].N(=O)[O-].N(=O)[O-].N(=O)[O-].N(=O)[O-].N(=O)[O-].N(=O)[O-].N(=O)[O-] Chemical compound N(=O)[O-].[C+4].[Ti+4].N(=O)[O-].N(=O)[O-].N(=O)[O-].N(=O)[O-].N(=O)[O-].N(=O)[O-].N(=O)[O-] WNMMHBFRTBOEGR-UHFFFAOYSA-F 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XOUPWBJVJFQSLK-UHFFFAOYSA-J titanium(4+);tetranitrite Chemical compound [Ti+4].[O-]N=O.[O-]N=O.[O-]N=O.[O-]N=O XOUPWBJVJFQSLK-UHFFFAOYSA-J 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D9/00—Bending tubes using mandrels or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
- B21D7/024—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D9/00—Bending tubes using mandrels or the like
- B21D9/05—Bending tubes using mandrels or the like co-operating with forming members
- B21D9/07—Bending tubes using mandrels or the like co-operating with forming members with one or more swinging forming members engaging tube ends only
- B21D9/073—Bending tubes using mandrels or the like co-operating with forming members with one or more swinging forming members engaging tube ends only with one swinging forming member
Definitions
- the present invention relates to a tool on tube or profile bending machines.
- fold smoothing tool is used for reducing the fold formation.
- This shaped piece can have different designs and is occasionally designated as a fold smoothing shell or fold smoothing shoe. It supports the tube on the inside of the forming zone in the direction of the part which has just been bent. During the bending, the tube is drawn with considerable pressure force via the fold smoothing tool, thereby resulting in considerable wear on the fold smoothing tool.
- the fold smoothing tool To avoid the wear in the fold smoothing tool, it is protected with additional materials, such as, for example, aluminum bronze, beryllium bronze or other bronze materials. Nonetheless, the fold smoothing tool is impaired to a considerable extent and therefore has to be exchanged relatively frequently. Tests with lubricants, for example molybdenum lubricant or titanium nitrite or titanium carbon nitrite, were also unable to produce any substantial prolongation in service life.
- the object of the present innovation is therefore to propose a means with which the service life of the tools on tube and profile bending machines can be prolonged.
- a tool such as a fold smoothing tool, mandrel or guide rails, having the features of claim 1 .
- a coating of molybdenum or of a molybdenum alloy is applied to that surface of a fold smoothing tool, a mandrel, rollers, guide aids, dies or guide rails which touches the tube.
- This coating may be less than 0.1 mm and nonetheless produces a considerable prolongation in the service life.
- the molybdenum is applied to the surface by means of a flame spray process, by electroplating or by vapor deposition.
- FIG. 1 A mandrel bending machine for bending tubes is shown in FIG. 1.
- the bending is effected by drawing the tube 1 by means of a clamp device 2 by rotating the die 3 .
- a rail 4 and a fold smoothing tool 5 provide for the external guidance, and the displaceable mandrel 6 arranged in the interior prevents a change in the tube diameter.
- Those surfaces of the rail 4 , of the fold smoothing tool 5 and of the mandrel 6 which come in contact with the tube are provided with a coating of molybdenum or molybdenum alloy.
- FIG. 2 shows a fold smoothing tool 5 in which a protective coating 7 is applied to the surface 8 touching the tube.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Coating By Spraying Or Casting (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Wire Processing (AREA)
Abstract
The invention relates to a tool for tube or profile bending machines. At least the surface touching the tube (1) or profile is coated with a layer of molybdenum or molybdenum alloy, enabling the service life of said tool to be significantly improved.
Description
- The present invention relates to a tool on tube or profile bending machines.
- During the bending of tubes by means of tube bending machines, in which the tubes are clamped in place and bent by drawing at the free end, folds may be produced on the inside of the bend as a result of upsetting of the material. In order to avoid this, a tool, the fold smoothing tool, is used for reducing the fold formation. This shaped piece can have different designs and is occasionally designated as a fold smoothing shell or fold smoothing shoe. It supports the tube on the inside of the forming zone in the direction of the part which has just been bent. During the bending, the tube is drawn with considerable pressure force via the fold smoothing tool, thereby resulting in considerable wear on the fold smoothing tool. To avoid the wear in the fold smoothing tool, it is protected with additional materials, such as, for example, aluminum bronze, beryllium bronze or other bronze materials. Nonetheless, the fold smoothing tool is impaired to a considerable extent and therefore has to be exchanged relatively frequently. Tests with lubricants, for example molybdenum lubricant or titanium nitrite or titanium carbon nitrite, were also unable to produce any substantial prolongation in service life.
- In addition, during bending, mandrels, rollers, guide aids, dies and guide rails are also required, which are likewise highly stressed and therefore also have to be exchanged, even if not so frequently.
- The object of the present innovation is therefore to propose a means with which the service life of the tools on tube and profile bending machines can be prolonged.
- This object is achieved according to the invention by a tool, such as a fold smoothing tool, mandrel or guide rails, having the features of
claim 1. - Accordingly, a coating of molybdenum or of a molybdenum alloy is applied to that surface of a fold smoothing tool, a mandrel, rollers, guide aids, dies or guide rails which touches the tube. This coating may be less than 0.1 mm and nonetheless produces a considerable prolongation in the service life. The molybdenum is applied to the surface by means of a flame spray process, by electroplating or by vapor deposition.
- A mandrel bending machine for bending tubes is shown in FIG. 1. Here, the bending is effected by drawing the
tube 1 by means of aclamp device 2 by rotating thedie 3. Arail 4 and afold smoothing tool 5 provide for the external guidance, and thedisplaceable mandrel 6 arranged in the interior prevents a change in the tube diameter. Those surfaces of therail 4, of thefold smoothing tool 5 and of themandrel 6 which come in contact with the tube are provided with a coating of molybdenum or molybdenum alloy. - FIG. 2, by way of example, shows a
fold smoothing tool 5 in which aprotective coating 7 is applied to thesurface 8 touching the tube.
Claims (2)
1. A tool for tube or profile bending machines, wherein a coating (7) of molybdenum or of a molybdenum alloy is applied to at least the surface (8) touching the tube or profile.
2. The tool as claimed in claim 1 , wherein the coating thickness is less than 0.1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/335,776 US20090095044A1 (en) | 2001-05-22 | 2008-12-16 | Method for prolonging service life of a machine for bending tubes |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10124866A DE10124866A1 (en) | 2001-05-22 | 2001-05-22 | Tool for bending machine |
| DE10124866.0 | 2001-05-22 | ||
| PCT/DE2002/001774 WO2002094468A1 (en) | 2001-05-22 | 2002-05-17 | Tool for a bending machine |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US12/335,776 Division US20090095044A1 (en) | 2001-05-22 | 2008-12-16 | Method for prolonging service life of a machine for bending tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US20040154366A1 true US20040154366A1 (en) | 2004-08-12 |
Family
ID=7685685
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US10/478,392 Abandoned US20040154366A1 (en) | 2001-05-22 | 2002-05-17 | Tool for a bending machine |
| US12/335,776 Abandoned US20090095044A1 (en) | 2001-05-22 | 2008-12-16 | Method for prolonging service life of a machine for bending tubes |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US12/335,776 Abandoned US20090095044A1 (en) | 2001-05-22 | 2008-12-16 | Method for prolonging service life of a machine for bending tubes |
Country Status (8)
| Country | Link |
|---|---|
| US (2) | US20040154366A1 (en) |
| EP (1) | EP1389149B1 (en) |
| JP (1) | JP2004528480A (en) |
| AT (1) | ATE296172T1 (en) |
| DE (2) | DE10124866A1 (en) |
| ES (1) | ES2243739T3 (en) |
| PT (1) | PT1389149E (en) |
| WO (1) | WO2002094468A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050156355A1 (en) * | 2003-12-26 | 2005-07-21 | Calsonic Kansei Corporation | Production apparatus and production method for producing bent portion of multi-channel tube |
| US20100251794A1 (en) * | 2007-07-10 | 2010-10-07 | V & M Deutschland Gmbh | Forging mandrel for hot-forging tubular workpieces of metal |
| CN104056886A (en) * | 2014-06-26 | 2014-09-24 | 威海石岛重工有限公司 | Pipe bending device |
| US11047629B2 (en) | 2016-11-11 | 2021-06-29 | Marelli Cabin Comfort Japan Corporation | Fin-assembled tube manufacturing method and double tube manufacturing method |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004034638B4 (en) * | 2004-07-16 | 2014-03-20 | Volkswagen Ag | Bending device for pipes |
| JP2007203366A (en) * | 2006-02-06 | 2007-08-16 | Daikin Ind Ltd | Bending method and bending apparatus |
| FR2909910B1 (en) * | 2006-12-19 | 2009-01-30 | Renault Sas | DEVICE FOR BENDING A METALLIC TUBE BY WINDING ON A SHAPE ROD. |
| US7594417B1 (en) * | 2008-08-15 | 2009-09-29 | Gm Global Technology Operations, Inc. | Apparatus for wiper die monitoring |
| GB2509919B (en) * | 2013-01-16 | 2015-04-29 | Olicana Products | Improvements in tube bending machines |
| CN105935711B (en) * | 2016-07-10 | 2018-03-20 | 江苏凯宇不锈钢制品有限公司 | A kind of preparation technology of Stainless Steel Coil |
| JP6502912B2 (en) * | 2016-11-11 | 2019-04-17 | カルソニックカンセイ株式会社 | Method and apparatus for manufacturing fin-incorporated tube |
| JP6474856B2 (en) * | 2017-06-05 | 2019-02-27 | 東亜工業株式会社 | Pipe material bending method and pipe material bending apparatus |
| DE102020202347B4 (en) | 2020-02-24 | 2025-10-16 | Wafios Aktiengesellschaft | Feeding device for forming machine |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2392821A (en) * | 1944-01-22 | 1946-01-15 | Haynes Sellite Company | Metal-working tool |
| US3023490A (en) * | 1955-11-25 | 1962-03-06 | Dawson Armoring Company | Armored metal articles with a thin hard film made in situ and conforming to the exact contour of the underlying surface |
| US3024128A (en) * | 1955-11-14 | 1962-03-06 | Dawson Armoring Company | Method of coating metal article with hard particles |
| US3456482A (en) * | 1966-10-03 | 1969-07-22 | Teledyne Inc | Method and apparatus for draw forming tubes and the like including mandrels therefor |
| US4233072A (en) * | 1977-07-28 | 1980-11-11 | Riken Corporation | Sliding member having wear- and scuff-resistant coating on its surface |
| US4571983A (en) * | 1985-04-30 | 1986-02-25 | United Technologies Corporation | Refractory metal coated metal-working dies |
| US5031434A (en) * | 1989-02-28 | 1991-07-16 | Nkk Corporation | Plug for manufacturing seamless steel pipe |
| US5664453A (en) * | 1993-12-01 | 1997-09-09 | Sumitomo Light Metal Industries, Ltd. | Hollow extruder die for extruding a hollow member of a zinc-containing aluminum alloy |
| US5913931A (en) * | 1997-11-04 | 1999-06-22 | Ready Technology, Inc. | Extended length rotary bending and forming devices and methods for manufacture thereof |
| US6372346B1 (en) * | 1997-05-13 | 2002-04-16 | Enduraloy Corporation | Tough-coated hard powders and sintered articles thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE6931400U (en) * | 1969-07-30 | 1970-01-08 | Steinmueller Gmbh L & C | FOLDING TABLES FOR BENDING MACHINES |
| CH576526A5 (en) * | 1973-02-28 | 1976-06-15 | Dettwiler & Maeder Dema | |
| US3914178A (en) * | 1974-01-23 | 1975-10-21 | Amerace Corp | Wear reducing coating |
| US4214762A (en) * | 1978-08-03 | 1980-07-29 | Ramsey Corporation | Rolled metal piston ring |
| DE4112614C2 (en) * | 1991-04-15 | 1994-10-27 | Fraunhofer Ges Forschung | Mandrel for cold and / or hot forming of metallic goods and process for its production |
-
2001
- 2001-05-22 DE DE10124866A patent/DE10124866A1/en not_active Withdrawn
-
2002
- 2002-05-17 US US10/478,392 patent/US20040154366A1/en not_active Abandoned
- 2002-05-17 JP JP2002591173A patent/JP2004528480A/en active Pending
- 2002-05-17 AT AT02742759T patent/ATE296172T1/en not_active IP Right Cessation
- 2002-05-17 PT PT02742759T patent/PT1389149E/en unknown
- 2002-05-17 WO PCT/DE2002/001774 patent/WO2002094468A1/en not_active Ceased
- 2002-05-17 DE DE50203204T patent/DE50203204D1/en not_active Expired - Lifetime
- 2002-05-17 EP EP02742759A patent/EP1389149B1/en not_active Expired - Lifetime
- 2002-05-17 ES ES02742759T patent/ES2243739T3/en not_active Expired - Lifetime
-
2008
- 2008-12-16 US US12/335,776 patent/US20090095044A1/en not_active Abandoned
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2392821A (en) * | 1944-01-22 | 1946-01-15 | Haynes Sellite Company | Metal-working tool |
| US3024128A (en) * | 1955-11-14 | 1962-03-06 | Dawson Armoring Company | Method of coating metal article with hard particles |
| US3023490A (en) * | 1955-11-25 | 1962-03-06 | Dawson Armoring Company | Armored metal articles with a thin hard film made in situ and conforming to the exact contour of the underlying surface |
| US3456482A (en) * | 1966-10-03 | 1969-07-22 | Teledyne Inc | Method and apparatus for draw forming tubes and the like including mandrels therefor |
| US4233072A (en) * | 1977-07-28 | 1980-11-11 | Riken Corporation | Sliding member having wear- and scuff-resistant coating on its surface |
| US4571983A (en) * | 1985-04-30 | 1986-02-25 | United Technologies Corporation | Refractory metal coated metal-working dies |
| US5031434A (en) * | 1989-02-28 | 1991-07-16 | Nkk Corporation | Plug for manufacturing seamless steel pipe |
| US5664453A (en) * | 1993-12-01 | 1997-09-09 | Sumitomo Light Metal Industries, Ltd. | Hollow extruder die for extruding a hollow member of a zinc-containing aluminum alloy |
| US6372346B1 (en) * | 1997-05-13 | 2002-04-16 | Enduraloy Corporation | Tough-coated hard powders and sintered articles thereof |
| US5913931A (en) * | 1997-11-04 | 1999-06-22 | Ready Technology, Inc. | Extended length rotary bending and forming devices and methods for manufacture thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050156355A1 (en) * | 2003-12-26 | 2005-07-21 | Calsonic Kansei Corporation | Production apparatus and production method for producing bent portion of multi-channel tube |
| US7553148B2 (en) * | 2003-12-26 | 2009-06-30 | Calsonic Kansei Corporation | Production apparatus and production method for producing bent portion of multi-channel tube |
| US20100251794A1 (en) * | 2007-07-10 | 2010-10-07 | V & M Deutschland Gmbh | Forging mandrel for hot-forging tubular workpieces of metal |
| CN104056886A (en) * | 2014-06-26 | 2014-09-24 | 威海石岛重工有限公司 | Pipe bending device |
| US11047629B2 (en) | 2016-11-11 | 2021-06-29 | Marelli Cabin Comfort Japan Corporation | Fin-assembled tube manufacturing method and double tube manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| DE50203204D1 (en) | 2005-06-30 |
| JP2004528480A (en) | 2004-09-16 |
| DE10124866A1 (en) | 2002-12-05 |
| ES2243739T3 (en) | 2005-12-01 |
| EP1389149A1 (en) | 2004-02-18 |
| EP1389149B1 (en) | 2005-05-25 |
| US20090095044A1 (en) | 2009-04-16 |
| ATE296172T1 (en) | 2005-06-15 |
| PT1389149E (en) | 2005-10-31 |
| WO2002094468A1 (en) | 2002-11-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |