EP0955114A3 - Method and mould for cold compacting powders to be sintered - Google Patents

Method and mould for cold compacting powders to be sintered Download PDF

Info

Publication number
EP0955114A3
EP0955114A3 EP99108817A EP99108817A EP0955114A3 EP 0955114 A3 EP0955114 A3 EP 0955114A3 EP 99108817 A EP99108817 A EP 99108817A EP 99108817 A EP99108817 A EP 99108817A EP 0955114 A3 EP0955114 A3 EP 0955114A3
Authority
EP
European Patent Office
Prior art keywords
core
pressing means
mould
powders
powder
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
EP99108817A
Other languages
German (de)
French (fr)
Other versions
EP0955114B1 (en
EP0955114A2 (en
Inventor
Claudio Sinico
Giannino Bonato
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.)
Sintech Srl
Said SpA
Original Assignee
Sintech Srl
Said SpA
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 Sintech Srl, Said SpA filed Critical Sintech Srl
Publication of EP0955114A2 publication Critical patent/EP0955114A2/en
Publication of EP0955114A3 publication Critical patent/EP0955114A3/en
Application granted granted Critical
Publication of EP0955114B1 publication Critical patent/EP0955114B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • B22F7/08—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B30B11/027—Particular press methods or systems
    • 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
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware
    • 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
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Powder Metallurgy (AREA)

Abstract

The invention is a method for the cold agglomeration of mixtures of metallic and non-metallic powders (P) on to the outer perimetral edge (B) of a core (A), comprising the following operations: positioning the core (A) inside a mould (1) between a pair of core-pressing means (7, 7') opposite each other; distributing the powder mixture (P) on to the outer perimetral edge (B) of the core (A); agglomerating the powders (P) together and on the edge (B) of the core through powder-pressing means (21, 22, 23, 24); shifting the core-pressing means, the powder-pressing means and the core with respect to the plane on which the core is arranged; moving the powder-pressing means away from the powders (P) agglomerated on the edge (B) of the core (A); moving at least one of the core-pressing means (7, 7') away from the core; extracting the core (A) from the mould. <IMAGE>
EP99108817A 1998-05-06 1999-05-04 Method and mould for cold compacting powders to be sintered Expired - Lifetime EP0955114B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVI980091 1998-05-06
IT98VI000091A ITVI980091A1 (en) 1998-05-06 1998-05-06 METHOD FOR COLD AGGLOMERATING POWDERS TO BE SINTERED AND MOLD SUITABLE FOR REALIZING THIS METHOD

Publications (3)

Publication Number Publication Date
EP0955114A2 EP0955114A2 (en) 1999-11-10
EP0955114A3 true EP0955114A3 (en) 2001-08-01
EP0955114B1 EP0955114B1 (en) 2004-07-21

Family

ID=11426704

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99108817A Expired - Lifetime EP0955114B1 (en) 1998-05-06 1999-05-04 Method and mould for cold compacting powders to be sintered

Country Status (4)

Country Link
EP (1) EP0955114B1 (en)
AT (1) ATE271435T1 (en)
DE (1) DE69918742D1 (en)
IT (1) ITVI980091A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108405853B (en) * 2018-04-27 2024-09-13 平山县凯龙机械有限公司 Die for manufacturing water pump hub

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2331909A (en) * 1940-12-04 1943-10-19 Mallory & Co Inc P R Gear and the like
US2686439A (en) * 1948-04-27 1954-08-17 Thoger G Jungersen Method of making cutting tools
US5016498A (en) * 1987-05-30 1991-05-21 Sanwa Diamond Industrial Co., Ltd. Method and apparatus for manufacturing super abrasive cutting saw

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2331909A (en) * 1940-12-04 1943-10-19 Mallory & Co Inc P R Gear and the like
US2686439A (en) * 1948-04-27 1954-08-17 Thoger G Jungersen Method of making cutting tools
US5016498A (en) * 1987-05-30 1991-05-21 Sanwa Diamond Industrial Co., Ltd. Method and apparatus for manufacturing super abrasive cutting saw

Also Published As

Publication number Publication date
ATE271435T1 (en) 2004-08-15
EP0955114B1 (en) 2004-07-21
DE69918742D1 (en) 2004-08-26
ITVI980091A1 (en) 1999-11-06
EP0955114A2 (en) 1999-11-10

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