GB1371640A

GB1371640A – Method of making ball studs
– Google Patents

GB1371640A – Method of making ball studs
– Google Patents
Method of making ball studs

Info

Publication number
GB1371640A

GB1371640A
GB5964571A
GB5964571A
GB1371640A
GB 1371640 A
GB1371640 A
GB 1371640A
GB 5964571 A
GB5964571 A
GB 5964571A
GB 5964571 A
GB5964571 A
GB 5964571A
GB 1371640 A
GB1371640 A
GB 1371640A
Authority
GB
United Kingdom
Prior art keywords
tempering
ball
carburization
bainite
ferrite
Prior art date
1970-12-28
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
GB5964571A
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.)

Tokai TRW and Co Ltd

Original Assignee
Tokai TRW and Co Ltd
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.)
1970-12-28
Filing date
1971-12-22
Publication date
1974-10-23

1971-12-22
Application filed by Tokai TRW and Co Ltd
filed
Critical
Tokai TRW and Co Ltd

1974-10-23
Publication of GB1371640A
publication
Critical
patent/GB1371640A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

B—PERFORMING OPERATIONS; TRANSPORTING

B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL

B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS

B21K1/00—Making machine elements

B21K1/44—Making machine elements bolts, studs, or the like

C—CHEMISTRY; METALLURGY

C21—METALLURGY OF IRON

C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING

C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering

C21D1/34—Methods of heating

C21D1/42—Induction heating

C—CHEMISTRY; METALLURGY

C21—METALLURGY OF IRON

C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING

C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor

C21D9/0093—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for screws; for bolts

C—CHEMISTRY; METALLURGY

C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

C22C—ALLOYS

C22C38/00—Ferrous alloys, e.g. steel alloys

C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium

C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten

Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE

Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

Y02P10/00—Technologies related to metal processing

Y02P10/25—Process efficiency

Abstract

1371640 Heat treating ball studs TOKAI TRW & CO Ltd 22 Dec 1971 [28 Dec 1970] 59645/71 Headings C7A C7N and C7U A ball stud 1 for a motor vehicle suspension or steering system formed from a carbon or low alloy steel containing 0À12 to 0À23%C is subjected to carburization BC, diffusion CD, quenching DE, and tempering FG. The ball only is then hardened by induction I so that the surface layer has a martensitic structure and the core comprises sorbite ferrite and bainite, the shank and threaded portion having a sorbitic surface and a core of sorbite bainite and ferrite. In a particular embodiment the steel contains by weight:- while carburization is carried out e.g. in propane, ,at 890 to 920‹C to produce a surface carbon content of 0À5 to 0À7%, over a depth of 0À3 to 0À6 mm., followed by quenching in oil. Tempering is effected at 420 to 430‹C while a final tempering at 150 to 200‹C may follow the induction hardening.

GB5964571A
1970-12-28
1971-12-22
Method of making ball studs

Expired

GB1371640A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

JP45119330A

JPS5021153B1
(en)

1970-12-28
1970-12-28

Publications (1)

Publication Number
Publication Date

GB1371640A
true

GB1371640A
(en)

1974-10-23

Family
ID=14758791
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB5964571A
Expired

GB1371640A
(en)

1970-12-28
1971-12-22
Method of making ball studs

Country Status (6)

Country
Link

JP
(1)

JPS5021153B1
(en)

CA
(1)

CA943443A
(en)

DE
(1)

DE2165105C3
(en)

FR
(1)

FR2120939A5
(en)

GB
(1)

GB1371640A
(en)

IT
(1)

IT953227B
(en)

Cited By (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

WO2003046229A1
(en)

*

2001-11-28
2003-06-05
Ejot Verbindungstechnik Gmbh & Co. Kg
Fastening element made of a carbon-containing steel and method for the production thereof

Families Citing this family (6)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

FR2498956B2
(en)

*

1972-04-17
1988-11-25
Perrier Jean

MANUFACTURING OF COLD FORGING PIVOTS USED IN CRUDE HITTING

US3849964A
(en)

*

1973-08-15
1974-11-26
F Briles
Corrosion blocking fastener

JPS52145671U
(en)

*

1976-04-30
1977-11-04

JPS534339U
(en)

*

1976-06-29
1978-01-14

JPS53109145U
(en)

*

1977-02-08
1978-09-01

FR2916371B1
(en)

*

2007-05-24
2010-02-26
Fwu Kuang Entpr Co Ltd

PROCESS FOR PREPARING FORGED PARTS HAVING EXCELLENT TRACTION RESISTANCE AND ELONGATION FROM STEEL MAMINERY WIRES

1970

1970-12-28
JP
JP45119330A
patent/JPS5021153B1/ja
active
Pending

1971

1971-12-22
GB
GB5964571A
patent/GB1371640A/en
not_active
Expired

1971-12-23
CA
CA130,939A
patent/CA943443A/en
not_active
Expired

1971-12-27
FR
FR7146846A
patent/FR2120939A5/fr
not_active
Expired

1971-12-28
IT
IT71246/71A
patent/IT953227B/en
active

1971-12-28
DE
DE2165105A
patent/DE2165105C3/en
not_active
Expired

Cited By (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

WO2003046229A1
(en)

*

2001-11-28
2003-06-05
Ejot Verbindungstechnik Gmbh & Co. Kg
Fastening element made of a carbon-containing steel and method for the production thereof

Also Published As

Publication number
Publication date

DE2165105A1
(en)

1972-07-13

IT953227B
(en)

1973-08-10

FR2120939A5
(en)

1972-08-18

DE2165105C3
(en)

1975-04-17

JPS5021153B1
(en)

1975-07-21

CA943443A
(en)

1974-03-12

DE2165105B2
(en)

1974-08-15

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Legal Events

Date
Code
Title
Description

1975-03-05
PS
Patent sealed

1992-01-22
PE20
Patent expired after termination of 20 years

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