GB709267A - Improvements in or relating to impact extrusion dies - Google Patents

Improvements in or relating to impact extrusion dies

Info

Publication number
GB709267A
GB709267A GB2435050A GB2435050A GB709267A GB 709267 A GB709267 A GB 709267A GB 2435050 A GB2435050 A GB 2435050A GB 2435050 A GB2435050 A GB 2435050A GB 709267 A GB709267 A GB 709267A
Authority
GB
United Kingdom
Prior art keywords
ring
die
radiused
base
base plug
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
GB2435050A
Inventor
Peter Annber Harold Meats
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.)
Hard Alloys Ltd
Original Assignee
Hard Alloys 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 Hard Alloys Ltd filed Critical Hard Alloys Ltd
Priority to GB2435050A priority Critical patent/GB709267A/en
Publication of GB709267A publication Critical patent/GB709267A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C25/00—Profiling tools for metal extruding
    • B21C25/02—Dies
    • B21C25/025—Selection of materials therefor

Abstract

709,267. Extruding. HARD ALLOYS, Ltd. Oct. 1 1951 [Oct. 5, 1950], No. 24350/50. Class 83 (4) An impact extrusion die incorporating sizing, radiused and base portions is formed by two main components one of said components forming said sizing portion and the whole or a part of the radiused portion and being made from cemented carbides or other hard metal or from cobalt-chrome alloy, and the other component forming the base portion, and, where the whole of the radiused portion is not included in the first component, the remainder of the radiused portion and being made from steel or from a material similar to that used for the firstmentioned component. A ring-like portion 1 and a base plug 8 are assembled to form a die having a cylindrical sizing surface 3, a base portion 4 and a radiused portion 5. The outer part of the bore of the ring 1 may be chamfered to form a belled lead-in 6. The radiused portion 5 may be formed by a combination of rad used and chamfered surfaces and part of the radiused portion may be formed by the marginal surface 5' of the base plug 2. The ring 1 and the base plug 2 are held in position by a two-part die box comprising an upper steel part 7 and a lower steel part 8 which makes a screw-thread engagement with the part 7. The lower part 8 acts as a pressure pad for the base plug 2 which has a flange for abutment against the ring 1. A spacer ring 9 may be interposed between said flange and the ring 1. The upper peripheral portion of the ring 1 is stepped for engagement by an overhanging lip portion 10 of the part 7 of the die box. The die ring and base plug are made from cemented carbides or from a metal alloy known under the Registered Trade Mark " Stellite ". In operation, a disc-like pellet of zinc or aluminium or of zinc, aluminium, or copper alloys is placed in the die and a punch is. driven into the die to cause the metal of the pellet to be extruded backwards over the punch to form a container for pharmaceutical preparations or film cassettes or valve screens or the like.
GB2435050A 1950-10-05 1950-10-05 Improvements in or relating to impact extrusion dies Expired GB709267A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2435050A GB709267A (en) 1950-10-05 1950-10-05 Improvements in or relating to impact extrusion dies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2435050A GB709267A (en) 1950-10-05 1950-10-05 Improvements in or relating to impact extrusion dies

Publications (1)

Publication Number Publication Date
GB709267A true GB709267A (en) 1954-05-19

Family

ID=10210326

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2435050A Expired GB709267A (en) 1950-10-05 1950-10-05 Improvements in or relating to impact extrusion dies

Country Status (1)

Country Link
GB (1) GB709267A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102581056A (en) * 2012-03-09 2012-07-18 江苏科技大学 Die and method for machining sleeve part with steps in inner hole

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102581056A (en) * 2012-03-09 2012-07-18 江苏科技大学 Die and method for machining sleeve part with steps in inner hole

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