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EP0374950A3 - Method and devices for applying a hard material in the molten state to cutting tool teeth - Google Patents

Method and devices for applying a hard material in the molten state to cutting tool teeth

Info

Publication number
EP0374950A3
EP0374950A3 EP19890123779 EP89123779A EP0374950A3 EP 0374950 A3 EP0374950 A3 EP 0374950A3 EP 19890123779 EP19890123779 EP 19890123779 EP 89123779 A EP89123779 A EP 89123779A EP 0374950 A3 EP0374950 A3 EP 0374950A3
Authority
EP
European Patent Office
Prior art keywords
tooth
hard material
applying
cap
devices
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.)
Granted
Application number
EP19890123779
Other languages
German (de)
Other versions
EP0374950B1 (en
EP0374950A2 (en
Inventor
Ernst Ing.-Grad. Beck
Peter Lenard
Johann Bayer
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.)
Vollmer Werke Maschinenfabrik GmbH
Original Assignee
Vollmer Werke Maschinenfabrik GmbH
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 Vollmer Werke Maschinenfabrik GmbH filed Critical Vollmer Werke Maschinenfabrik GmbH
Priority to AT89123779T priority Critical patent/ATE85766T1/en
Publication of EP0374950A2 publication Critical patent/EP0374950A2/en
Publication of EP0374950A3 publication Critical patent/EP0374950A3/en
Application granted granted Critical
Publication of EP0374950B1 publication Critical patent/EP0374950B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/06—Casting in, on, or around objects which form part of the product for manufacturing or repairing tools

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Arc Welding In General (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)

Abstract

Formed around a tooth (10) is a shaped cavity (26) which is closed at tooth face (12) and tooth flanks (14) and forms a cap (28) in the molten material (20) due to its surface tension. Before solidification of the material, the said cap is flattened to approximate it to the intended shape of the tooth back (14) by applying a pressure progressively on the cap (28) in the direction of the tooth tip (18). When the hard material is melted using a gas or plasma jet, the latter can, after melting the hard material, be moved over the cap (28) in the direction of the tooth tip (18). <IMAGE>
EP89123779A 1988-12-23 1989-12-22 Method and devices for applying a hard material in the molten state to cutting tool teeth Expired - Lifetime EP0374950B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89123779T ATE85766T1 (en) 1988-12-23 1989-12-22 METHODS AND DEVICES FOR APPLYING MOLTEN HARD MATERIAL TO CUTTING TOOL TEETH.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3843647 1988-12-23
DE3843647A DE3843647A1 (en) 1988-12-23 1988-12-23 METHOD AND DEVICES FOR APPLYING MOLTEN HARD MATERIAL TO TEETH OF CUTTING TOOLS

Publications (3)

Publication Number Publication Date
EP0374950A2 EP0374950A2 (en) 1990-06-27
EP0374950A3 true EP0374950A3 (en) 1990-12-12
EP0374950B1 EP0374950B1 (en) 1993-02-17

Family

ID=6370105

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89123779A Expired - Lifetime EP0374950B1 (en) 1988-12-23 1989-12-22 Method and devices for applying a hard material in the molten state to cutting tool teeth

Country Status (4)

Country Link
US (1) US5101879A (en)
EP (1) EP0374950B1 (en)
AT (1) ATE85766T1 (en)
DE (2) DE3843647A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4124745A1 (en) * 1991-07-25 1993-01-28 Alligator Ets Applying a hard metal coating to the teeth of cutting tools - where the projecting bead of molten coating material is levelled off immediately after application to fill the mould in which the tooth is inserted
DE4314707C1 (en) * 1993-05-04 1994-12-08 Vollmer Werke Maschf Method and device for applying hard material to teeth of cutting tools, in particular saw blades
DE19520149B4 (en) * 1995-06-01 2010-03-04 Hilti Aktiengesellschaft Apparatus for manufacturing, method for producing and using a coating on a component
US5752307A (en) * 1996-09-17 1998-05-19 Pacific Saw And Knife Company Method for applying a hard cutting edge to a replaceable bit for a circular saw
GB2345036B (en) * 1998-12-24 2002-07-10 Bernard Mccartney Ltd Vehicle wheel tooth
AT411877B (en) * 2002-05-31 2004-07-26 Boehler Miller Messer Und Saeg COMPOSITE FLAT BAR
DE102006051709A1 (en) * 2006-10-30 2008-05-08 AHC-Oberflächentechnik GmbH Production of wear-resistant coatings on materials made of barrier-layer-forming metals or their alloys by means of laser treatment
US11365470B2 (en) * 2020-01-08 2022-06-21 General Electric Company Ceramic coating formation using temperature controlled gas flow to smooth surface

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3063310A (en) * 1959-10-15 1962-11-13 Continental Machines Metal cutting saw bands and blades and method of making the same
DE1558378A1 (en) * 1967-04-27 1970-04-09 Vollmer Werke Maschf Method and device for applying a harder material forming the cutting edge of a cutting tool to a specific surface section of a softer base material
DE2523416A1 (en) * 1975-05-27 1976-12-16 Alber Rudolf Fa Saw teeth hard crown attachment process - has fluid metal droplet attached to tooth and shaped by hammers on three sides
FR2409120A2 (en) * 1977-11-18 1979-06-15 Vollmer Werke Maschf Flame deposition of hard alloy on saw blade teeth - where punch and mould control size and shape of deposit
FR2422470A2 (en) * 1978-04-14 1979-11-09 Brune Freres Anc Ets Deposition of stellite (RTM) on saw blade teeth - using arc welding set to melt stellite wire in crucible assembled round tooth
FR2448407A1 (en) * 1979-02-09 1980-09-05 Brune Freres Anc Ets Plasma coating of saw teeth with hard metal - where vibrating chute forms doser feeding hard metal powder into crucible surrounding tooth edge

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2277571A (en) * 1940-06-28 1942-03-24 Haynes Stellite Co Method and apparatus for aplying protective metal
US2688168A (en) * 1950-11-15 1954-09-07 Union Carbide & Carbon Corp Method of and apparatus for applying welded-on metal coatings
US3570449A (en) * 1969-03-13 1971-03-16 United Aircraft Corp Sensor system for a vacuum deposition apparatus
BE790453A (en) * 1971-10-26 1973-02-15 Brooks Reginald G MANUFACTURE OF METAL ARTICLES
DE2321161C2 (en) * 1973-04-26 1974-08-01 Vollmer-Werke Maschinenfabrik Gmbh, 7950 Biberach Device for applying a hard material to a saw blade
DE2330803A1 (en) * 1973-06-16 1975-01-09 Schmidt Gmbh Karl Casting IC engine aluminium or alloy cylinder liners - using vibrated mould
US4033402A (en) * 1975-10-02 1977-07-05 General Battery Corporation Automated post burn station
US4394879A (en) * 1981-06-08 1983-07-26 Reynolds William A Method of repairing damaged keyway
US4794979A (en) * 1984-06-15 1989-01-03 Mcdonnell Douglas Corporation Method for melting metal, particularly scrap, and forming metal billets
DE3446139A1 (en) * 1984-12-18 1986-06-19 Andreas Peter Dipl.-Ing. 8200 Rosenheim Pöhl POT FOR METAL COATING
JPH0737660B2 (en) * 1985-02-21 1995-04-26 トヨタ自動車株式会社 Improved treatment method of cylinder head for internal combustion engine made of cast aluminum alloy
IT1191517B (en) * 1986-04-22 1988-03-23 Necchi Spa PROCEDURE FOR THE ADDITION OF METALLIC CHEMICAL ELEMENTS IN METAL CASTINGS

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3063310A (en) * 1959-10-15 1962-11-13 Continental Machines Metal cutting saw bands and blades and method of making the same
DE1558378A1 (en) * 1967-04-27 1970-04-09 Vollmer Werke Maschf Method and device for applying a harder material forming the cutting edge of a cutting tool to a specific surface section of a softer base material
DE2523416A1 (en) * 1975-05-27 1976-12-16 Alber Rudolf Fa Saw teeth hard crown attachment process - has fluid metal droplet attached to tooth and shaped by hammers on three sides
FR2409120A2 (en) * 1977-11-18 1979-06-15 Vollmer Werke Maschf Flame deposition of hard alloy on saw blade teeth - where punch and mould control size and shape of deposit
FR2422470A2 (en) * 1978-04-14 1979-11-09 Brune Freres Anc Ets Deposition of stellite (RTM) on saw blade teeth - using arc welding set to melt stellite wire in crucible assembled round tooth
FR2448407A1 (en) * 1979-02-09 1980-09-05 Brune Freres Anc Ets Plasma coating of saw teeth with hard metal - where vibrating chute forms doser feeding hard metal powder into crucible surrounding tooth edge

Also Published As

Publication number Publication date
DE58903570D1 (en) 1993-03-25
EP0374950B1 (en) 1993-02-17
US5101879A (en) 1992-04-07
ATE85766T1 (en) 1993-03-15
EP0374950A2 (en) 1990-06-27
DE3843647A1 (en) 1990-07-05

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