GB851706A - Improvements relating to the manufacture of metal members or constructional parts - Google Patents

Improvements relating to the manufacture of metal members or constructional parts

Info

Publication number
GB851706A
GB851706A GB159356A GB159356A GB851706A GB 851706 A GB851706 A GB 851706A GB 159356 A GB159356 A GB 159356A GB 159356 A GB159356 A GB 159356A GB 851706 A GB851706 A GB 851706A
Authority
GB
United Kingdom
Prior art keywords
heating
rod
block
bolt
manufacture
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
GB159356A
Inventor
Richard William Bailey
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical 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.)
Filing date
Publication date
Application filed by Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Priority to GB159356A priority Critical patent/GB851706A/en
Publication of GB851706A publication Critical patent/GB851706A/en
Expired legal-status Critical Current

Links

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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

A metal member, submitted in service to stress and strain at elevated temperatures, is subjected to a treatment consisting of securing the member to a rigid body having a higher co-efficient of expansion than the member, heating the assembly to a temperature at or above that to which the member will be subjected, continuing the heating to produce a plastic deformation in the member and then cooling. A ferritic steel bolt or rod may be secured in a block of austenitic steel, the cross-sectional area of which is large compared with the rod or bolt, and the assembly heated, the difference in co-efficients of expansion producing a plastic deformation in the rod or bolt. If the bolts are difficult to remove from the block their length may be temporarily increased by passing an electric current therethrough without heating the block.
GB159356A 1956-01-17 1956-01-17 Improvements relating to the manufacture of metal members or constructional parts Expired GB851706A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB159356A GB851706A (en) 1956-01-17 1956-01-17 Improvements relating to the manufacture of metal members or constructional parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB159356A GB851706A (en) 1956-01-17 1956-01-17 Improvements relating to the manufacture of metal members or constructional parts

Publications (1)

Publication Number Publication Date
GB851706A true GB851706A (en) 1960-10-19

Family

ID=9724642

Family Applications (1)

Application Number Title Priority Date Filing Date
GB159356A Expired GB851706A (en) 1956-01-17 1956-01-17 Improvements relating to the manufacture of metal members or constructional parts

Country Status (1)

Country Link
GB (1) GB851706A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016015092A1 (en) * 2014-07-30 2016-02-04 Integrity Engineering Solutions Pty Ltd Fasteners

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016015092A1 (en) * 2014-07-30 2016-02-04 Integrity Engineering Solutions Pty Ltd Fasteners
US10316881B2 (en) 2014-07-30 2019-06-11 Integrity Engineering Solutions Pty Ltd Fasteners
AU2015296888B2 (en) * 2014-07-30 2019-08-01 Integrity Engineering Solutions Pty Ltd Fasteners

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