FR2072871A5 - Forming profiled workpieces by compression - of powder - Google Patents

Forming profiled workpieces by compression - of powder

Info

Publication number
FR2072871A5
FR2072871A5 FR7043565A FR7043565A FR2072871A5 FR 2072871 A5 FR2072871 A5 FR 2072871A5 FR 7043565 A FR7043565 A FR 7043565A FR 7043565 A FR7043565 A FR 7043565A FR 2072871 A5 FR2072871 A5 FR 2072871A5
Authority
FR
France
Prior art keywords
preform
powder
compression
section
envelope
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.)
Expired
Application number
FR7043565A
Other languages
French (fr)
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.)
Whittaker Corp
Original Assignee
Whittaker Corp
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 Whittaker Corp filed Critical Whittaker Corp
Application granted granted Critical
Publication of FR2072871A5 publication Critical patent/FR2072871A5/en
Expired 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/01—Extruding metal; Impact extrusion starting from material of particular form or shape, e.g. mechanically pre-treated
    • 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
    • B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Metal Extraction Processes (AREA)
  • Extrusion Of Metal (AREA)
  • Forging (AREA)

Abstract

A preform of the superalloy article of complex profile is made having a greater section and shorter length than the finished article. The preform is compressed to a given cohesion (pref. >=50% theoretical density) and placed in a deformable envelope having a greater volume than that of the preform. The space between the envelope and preform is filled with powder and the whole subjected to elevated pressure and temp. during extrusion such that the preform and surrounding powder harden simultaneously, and are elongated to form the desired profile, e.g. an H-section or channel.
FR7043565A 1969-12-04 1970-12-03 Forming profiled workpieces by compression - of powder Expired FR2072871A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88209369A 1969-12-04 1969-12-04

Publications (1)

Publication Number Publication Date
FR2072871A5 true FR2072871A5 (en) 1971-09-24

Family

ID=25379873

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7043565A Expired FR2072871A5 (en) 1969-12-04 1970-12-03 Forming profiled workpieces by compression - of powder

Country Status (5)

Country Link
JP (1) JPS4927739B1 (en)
BE (1) BE759889A (en)
CA (1) CA925471A (en)
DE (1) DE2059608A1 (en)
FR (1) FR2072871A5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0278682A3 (en) * 1987-02-06 1990-01-24 The Timken Company Powder metal composite and method of its manufacture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0278682A3 (en) * 1987-02-06 1990-01-24 The Timken Company Powder metal composite and method of its manufacture

Also Published As

Publication number Publication date
JPS4927739B1 (en) 1974-07-20
CA925471A (en) 1973-05-01
BE759889A (en) 1971-05-17
DE2059608A1 (en) 1971-06-09

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Legal Events

Date Code Title Description
ST Notification of lapse