GB1535775A - Method of producing high-strength cold-formed parts - Google Patents

Method of producing high-strength cold-formed parts

Info

Publication number
GB1535775A
GB1535775A GB3205375A GB3205375A GB1535775A GB 1535775 A GB1535775 A GB 1535775A GB 3205375 A GB3205375 A GB 3205375A GB 3205375 A GB3205375 A GB 3205375A GB 1535775 A GB1535775 A GB 1535775A
Authority
GB
United Kingdom
Prior art keywords
cold
july
bolts
followed
bar
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
GB3205375A
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.)
SCHRAUBENKOMBINAT VEB
Original Assignee
SCHRAUBENKOMBINAT VEB
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 SCHRAUBENKOMBINAT VEB filed Critical SCHRAUBENKOMBINAT VEB
Priority to GB3205375A priority Critical patent/GB1535775A/en
Publication of GB1535775A publication Critical patent/GB1535775A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • C21D7/10—Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • 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

Abstract

1535775 Making nuts and bolts; altering physical properties SCHRAUBENKOMBINAT VEB 30 July 1976 [31 July 1975] 32053/75 Headings B3A and B3V Bolts, nuts &c. having a high strength #750 N/mm.<SP>2</SP> and a yield point #600 N/mm.<SP>2</SP> are made from low or unalloyed bar or wire steel having a carbon content below 0À6% and a tensile strength #500 N/mm.<SP>2</SP> by cold drawing to reduce the cross-section by 20-60% followed by cold upsetting in the opposite direction to that of drawing. As exemplified, the bar is annealed, pickled and phosphated before being drawn with a reduction of 54-3%. Bolt blanks are completed by upsetting in a multi-stage cold header, followed by thread rolling.
GB3205375A 1976-07-30 1976-07-30 Method of producing high-strength cold-formed parts Expired GB1535775A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3205375A GB1535775A (en) 1976-07-30 1976-07-30 Method of producing high-strength cold-formed parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3205375A GB1535775A (en) 1976-07-30 1976-07-30 Method of producing high-strength cold-formed parts

Publications (1)

Publication Number Publication Date
GB1535775A true GB1535775A (en) 1978-12-13

Family

ID=10332446

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3205375A Expired GB1535775A (en) 1976-07-30 1976-07-30 Method of producing high-strength cold-formed parts

Country Status (1)

Country Link
GB (1) GB1535775A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994013842A1 (en) * 1992-12-17 1994-06-23 Consolidated Metal Products, Inc. Cold formed high-strength steel parts
US5453139A (en) * 1990-10-24 1995-09-26 Consolidated Metal Products, Inc. Method of making cold formed high-strength steel parts
US5496425A (en) * 1990-10-24 1996-03-05 Consolidated Metal Products, Inc. Cold formed high-strength steel structural members
US6325874B1 (en) 1999-12-03 2001-12-04 Consolidated Metal Products, Inc. Cold forming flat-rolled high-strength steel blanks into structural members
WO2004059016A2 (en) * 2002-12-23 2004-07-15 Sfs Intec Holding Ag Method for the production of a screw, and screw produced according to said method
US6852181B2 (en) 2001-10-23 2005-02-08 Consolidated Metal Products, Inc. Flattened U-bolt and method
WO2012084388A1 (en) * 2010-12-21 2012-06-28 Hilti Aktiengesellschaft Method for producing a screw anchor and screw anchor

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5453139A (en) * 1990-10-24 1995-09-26 Consolidated Metal Products, Inc. Method of making cold formed high-strength steel parts
US5496425A (en) * 1990-10-24 1996-03-05 Consolidated Metal Products, Inc. Cold formed high-strength steel structural members
WO1994013842A1 (en) * 1992-12-17 1994-06-23 Consolidated Metal Products, Inc. Cold formed high-strength steel parts
AU676707B2 (en) * 1992-12-17 1997-03-20 Consolidated Metal Products, Inc. Cold formed high-strength steel parts
US6325874B1 (en) 1999-12-03 2001-12-04 Consolidated Metal Products, Inc. Cold forming flat-rolled high-strength steel blanks into structural members
US6852181B2 (en) 2001-10-23 2005-02-08 Consolidated Metal Products, Inc. Flattened U-bolt and method
WO2004059016A2 (en) * 2002-12-23 2004-07-15 Sfs Intec Holding Ag Method for the production of a screw, and screw produced according to said method
WO2004059016A3 (en) * 2002-12-23 2005-03-03 Sfs Intec Holding Ag Method for the production of a screw, and screw produced according to said method
CN100465298C (en) * 2002-12-23 2009-03-04 Sfs因泰克控股股份公司 Method for the production of a screw, and screw produced according to said method
US7632053B2 (en) 2002-12-23 2009-12-15 Sfs-Intec Holding Ag Method for the production of a screw, and screw produced according to said method
WO2012084388A1 (en) * 2010-12-21 2012-06-28 Hilti Aktiengesellschaft Method for producing a screw anchor and screw anchor

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee