GB1097355A - Method of producing sintered articles of complicated shape - Google Patents

Method of producing sintered articles of complicated shape

Info

Publication number
GB1097355A
GB1097355A GB3168766A GB3168766A GB1097355A GB 1097355 A GB1097355 A GB 1097355A GB 3168766 A GB3168766 A GB 3168766A GB 3168766 A GB3168766 A GB 3168766A GB 1097355 A GB1097355 A GB 1097355A
Authority
GB
United Kingdom
Prior art keywords
preform
die
mould
core
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.)
Expired
Application number
GB3168766A
Inventor
John Haller
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.)
Federal Mogul LLC
Original Assignee
Federal Mogul 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 Federal Mogul LLC filed Critical Federal Mogul LLC
Priority to GB3168766A priority Critical patent/GB1097355A/en
Publication of GB1097355A publication Critical patent/GB1097355A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
    • 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
    • B22F2003/033—Press-moulding apparatus therefor with multiple punches working in the same direction

Abstract

A complex shaped sintered article e.g. made from powdered metal or nylon, is produced by charging the powder into a mould, heating the mould and powder to presinter the powder into a fragile preform which is then transferred to a die of the required shape where it is compressed to pulverise the preform and further compressed to form a briquette which is ejected and then sintered. In the example the sintered article is a planet gear carrier or rotor for use in planetary transmission and the preform is made in a <PICT:1097355/C6-C7/1> <PICT:1097355/C6-C7/2> graphite mould 14 which incorporates a main core 58, outlying pin cores 60 spaced circumferentially, transverse radial removable core bars 62 having holes 64 for pin cores 60. The charged mould is heated to 1300 DEG -1600 DEG F. The presintered preform is transferred to die 16, see Fig.4, which incorporates a main core rod 166 with a splined lower reduced diameter part 168 telescoping with a lower inner tubular punch 154. The upper part 170 of core rod 166 telescopes with an upper tubular punch 172 in die bore 146 and the punch has three circumferentially spaced bores 178 which receive core pins 182. Retractable rectangular core bars 196 are aligned with bores 190 and 192 and recess 194 in the head 170 of core rod 166. The die also include telescoping tubular outer and intermediate punches 150 and 152. The preform is compacted in the die and then sintered at 1850 DEG -2400 DEG F. In a further embodiment a composite preform is made up of several component preforms stacked in the die cavity and compacted together.
GB3168766A 1966-07-14 1966-07-14 Method of producing sintered articles of complicated shape Expired GB1097355A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3168766A GB1097355A (en) 1966-07-14 1966-07-14 Method of producing sintered articles of complicated shape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3168766A GB1097355A (en) 1966-07-14 1966-07-14 Method of producing sintered articles of complicated shape

Publications (1)

Publication Number Publication Date
GB1097355A true GB1097355A (en) 1968-01-03

Family

ID=10326912

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3168766A Expired GB1097355A (en) 1966-07-14 1966-07-14 Method of producing sintered articles of complicated shape

Country Status (1)

Country Link
GB (1) GB1097355A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9302768U1 (en) * 1992-10-16 1993-05-19 Gt.B Components Ltd., St. Helens Merseyside, Lancashire, Gb

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9302768U1 (en) * 1992-10-16 1993-05-19 Gt.B Components Ltd., St. Helens Merseyside, Lancashire, Gb
WO1994008743A1 (en) * 1992-10-16 1994-04-28 Gt.B Components Limited Moulding of apertured articles
ES2062938A2 (en) * 1992-10-16 1994-12-16 Gt B Components Limited Moulding of apertured articles.

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