GB915105A - Method of and apparatus for manufacturing threaded members - Google Patents

Method of and apparatus for manufacturing threaded members

Info

Publication number
GB915105A
GB915105A GB3021661A GB3021661A GB915105A GB 915105 A GB915105 A GB 915105A GB 3021661 A GB3021661 A GB 3021661A GB 3021661 A GB3021661 A GB 3021661A GB 915105 A GB915105 A GB 915105A
Authority
GB
United Kingdom
Prior art keywords
blank
recess
forms
forging
die
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
GB3021661A
Inventor
Paul Wilhelm Klooz
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.)
Veeder Industries Inc
Original Assignee
Holo Krome Screw Co
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 Holo Krome Screw Co filed Critical Holo Krome Screw Co
Priority to GB3021661A priority Critical patent/GB915105A/en
Publication of GB915105A publication Critical patent/GB915105A/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
    • B21K1/46—Making machine elements bolts, studs, or the like with heads
    • B21K1/463—Making machine elements bolts, studs, or the like with heads with recessed heads

Abstract

915,105. Forging and extruding screws. HOLO-KROME SCREW CORPORATION. Aug. 22, 1961, No. 30216/61. Classes 83 (2) and 83 (4). A threaded metal member such as a screw 29, Fig. 5, having a recess 25, 33 in each end is made by subjecting a warmed metal blank 10 to a first forging operation which forms the tip recess 25 and then to a second extruding operation which forms the head recess 33, and maintaining the temperature developed by the blank during forging below the oxidizing temperature of the metal. A steel or steel alloy blank is heated to 150-450‹ F., preferably between 150‹ and 200‹ F., inserted in a die 12 and pressed by a flat ram 22 against a projection 18 which forms a conical or pyramidal tip recess 25. The head socket 33 is then formed by a punch 28 during which the blank extrudes backwardly. An abutment 16 is removable from the die 12 to facilitate the ejection of the workpiece. Finally, the latter is chamfered at 27 and threaded. Specification 826,927 is referred to.
GB3021661A 1961-08-22 1961-08-22 Method of and apparatus for manufacturing threaded members Expired GB915105A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3021661A GB915105A (en) 1961-08-22 1961-08-22 Method of and apparatus for manufacturing threaded members

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3021661A GB915105A (en) 1961-08-22 1961-08-22 Method of and apparatus for manufacturing threaded members

Publications (1)

Publication Number Publication Date
GB915105A true GB915105A (en) 1963-01-09

Family

ID=10304138

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3021661A Expired GB915105A (en) 1961-08-22 1961-08-22 Method of and apparatus for manufacturing threaded members

Country Status (1)

Country Link
GB (1) GB915105A (en)

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