HUP9903345A2 - Variable-thickness extrusion method and extrusion unit in accordance with said method - Google Patents

Variable-thickness extrusion method and extrusion unit in accordance with said method

Info

Publication number
HUP9903345A2
HUP9903345A2 HU9903345A HUP9903345A HUP9903345A2 HU P9903345 A2 HUP9903345 A2 HU P9903345A2 HU 9903345 A HU9903345 A HU 9903345A HU P9903345 A HUP9903345 A HU P9903345A HU P9903345 A2 HUP9903345 A2 HU P9903345A2
Authority
HU
Hungary
Prior art keywords
mandrel
tool
press
washer
variable
Prior art date
Application number
HU9903345A
Other languages
Hungarian (hu)
Inventor
Angelo Gandini
Original Assignee
Fiocchi Munizioni S.P.A.
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 Fiocchi Munizioni S.P.A. filed Critical Fiocchi Munizioni S.P.A.
Publication of HUP9903345A2 publication Critical patent/HUP9903345A2/en
Publication of HUP9903345A3 publication Critical patent/HUP9903345A3/en
Publication of HU222308B1 publication Critical patent/HU222308B1/en

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
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/03—Making uncoated products by both direct and backward extrusion
    • 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
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/18—Making uncoated products by impact extrusion
    • 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
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/20—Making uncoated products by backward extrusion
    • 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
    • B21C25/04—Mandrels
    • 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
    • B21K21/00—Making hollow articles not covered by a single preceding sub-group
    • B21K21/08—Shaping hollow articles with different cross-section in longitudinal direction, e.g. nozzles, spark-plugs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Extrusion Of Metal (AREA)

Abstract

A találmány őlyan üreges fémgyártmányők, különösen töltényhüvelyekütvesajtőlására szőlgáló eljárást ismertet, amelynek sőránnyersdarabőt helyeznek egy szerszámba, majd a szerszámőn belül,egymással szemben lévő tüske és lyűkasztóalátét között alakítják aműnkadarabőt úgy, hőgy az összenyőmás főlyamán a tüskét, adőtt elsősebességgel a szerszám belseje felé, a lyűkasztóalátétet pedig aszerszámból kifelé, az első sebességnél kisebb, másődik sebességgelmőzgatják őly módőn, hőgy a tüske és a lyűkasztóalátét között atávőlságőt csökkentik és eközben a szerszám fala és a tüske felületeközött váltőzó távőlsággal hőzzák létre a sajtőlóüreget. A találmányőlyan üreges, fémgyártmányők, különösen töltényhüvelyek gyártásáraszőlgáló ütvesajtőló berendezést is leír, amelyben egy szerszámőn (13)belül sajtőlóüreget (14) főrmáló, egymással szemben elhelyezkedő,közös tengely mentén mőzgatható tüske (11) és lyűkasztóalátét (12)van, és a sajtőlóüreg (14) mérete, a tüske (11) és a lyűkasztóalátét(12) közös tengelye mentén és arra merőleges irányban, váltőzó. ŕThe invention describes a process for the batch press of such hollow metal products, especially cartridge cases, for which a rough workpiece is placed in a tool, and then the workpiece is formed inside the tool, between a mandrel and a punching washer facing each other in such a way that the mandrel on the main spindle of the compression press, with a given first speed towards the inside of the tool, the punching washer and outwards from the tool, lower than the first speed, they are heated in a crawling manner, so that the distance between the mandrel and the punching pad is reduced and in the meantime the press cavity is heated with a variable distance between the wall of the tool and the surface of the mandrel. According to the invention, it also describes a hollow impact press device, which is suitable for metal manufacturers, especially for the production of cartridge casings, in which a tool (13) has a punch cavity (14) inside, a mandrel (11) and a punch washer (12) located opposite each other, which can be driven along a common axis, and the press cavity ( 14) size, along the common axis of the mandrel (11) and the hole washer (12) and in the direction perpendicular to it, variable. ŕ

HU9903345A 1996-03-29 1997-03-26 Method and extrusion unit for extrusion of bored metal products especially of cartridge cases HU222308B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT96MI000624A IT1283320B1 (en) 1996-03-29 1996-03-29 VARIABLE THICKNESS EXTRUSION METHOD AND EXTRUSION GROUP ACCORDING TO THIS METHOD
PCT/EP1997/001610 WO1997036701A1 (en) 1996-03-29 1997-03-26 Variable-thickness extrusion method and extrusion unit in accordance with said method

Publications (3)

Publication Number Publication Date
HUP9903345A2 true HUP9903345A2 (en) 2000-02-28
HUP9903345A3 HUP9903345A3 (en) 2000-04-28
HU222308B1 HU222308B1 (en) 2003-06-28

Family

ID=11373823

Family Applications (1)

Application Number Title Priority Date Filing Date
HU9903345A HU222308B1 (en) 1996-03-29 1997-03-26 Method and extrusion unit for extrusion of bored metal products especially of cartridge cases

Country Status (8)

Country Link
EP (1) EP0889763B1 (en)
AU (1) AU2293197A (en)
DE (1) DE69711030T2 (en)
HU (1) HU222308B1 (en)
IL (1) IL126170A (en)
IT (1) IT1283320B1 (en)
TR (1) TR199801945T2 (en)
WO (1) WO1997036701A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2899499B1 (en) * 2006-04-11 2009-02-27 Manoir Ind Soc Par Actions Sim PRECISION EXTRUSION METHOD FOR HOLLOW METAL PIECES AND ASSOCIATED DEVICE
DE102008027423A1 (en) * 2008-06-10 2009-12-17 Neumayer Tekfor Holding Gmbh Pressing part and method for its production
CN103464498A (en) * 2012-06-06 2013-12-25 镇江建华轴承有限公司 Precise processing method for specially-shaped cavity of bearing outer ring
EP3345694B1 (en) * 2017-01-05 2024-05-22 FELSS Systems GmbH Method and device for locally thickening a hollow body
WO2018203110A1 (en) * 2017-05-04 2018-11-08 I.N.C.A. S.P.A. A Socio Unico Method for forming objects made of metal by backward extrusion and die for carrying out the method
CN108043899B (en) * 2017-12-20 2019-01-11 万金芬 A kind of manufacture system of part boss steel plate strip
DE102019002187B4 (en) * 2019-03-27 2020-10-15 Universität Stuttgart Method and device for producing a component with a thread
CN111112364B (en) * 2019-12-25 2022-07-19 北京机电研究所有限公司 Stepped deep hole extrusion process suitable for elastomer deep hole extrusion piece
CN111389944B (en) * 2020-03-26 2021-01-29 燕山大学 Extrusion rotary forming method for thick-wall cylinder
CN112517657B (en) * 2020-10-16 2022-04-08 中北大学 Bidirectional differential extrusion forming method for outer longitudinal rib cylindrical part
CN112517816B (en) * 2020-10-16 2022-04-08 中北大学 Bidirectional intermittent differential upsetting composite extrusion forming method for outer longitudinal rib cylindrical part
CN112517658B (en) * 2020-10-16 2022-04-08 中北大学 Bidirectional differential extrusion forming die for external longitudinal rib cylindrical part

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE327315C (en) * 1920-01-23 1920-10-09 Oberschlesische Eisenbahn Beda Method and die for the production of hollow bodies provided with external attachments
CH90356A (en) * 1920-08-10 1921-09-01 Usines Thecla S A Device for hot forging metals.
US1702278A (en) * 1928-05-18 1929-02-19 Simons Abraham Method of making seamless containers
FR1112344A (en) * 1953-11-12 1956-03-13 Kabel U Metallwerke Neumeyer A Method and device for press-stamping, in particular cold, flanged-shaped parts made of metal, preferably steel
DE2144006C3 (en) * 1971-09-02 1974-03-07 Kabel- Und Metallwerke Gutehoffnungshuette Ag, 3000 Hannover Process for the manufacture of bevel gears
CH633980A5 (en) * 1980-03-05 1983-01-14 Tusa Sa Impact extrusion device
JPS58110118A (en) * 1981-12-25 1983-06-30 Nissan Motor Co Ltd Production of cylindrical body
JPS59199142A (en) * 1983-04-27 1984-11-12 Tokai Rika Co Ltd Cold forging method of hollow cylindrical body
JPS62107838A (en) * 1985-11-05 1987-05-19 Toyota Motor Corp Method for forming bottomed cup with tapered bore

Also Published As

Publication number Publication date
ITMI960624A1 (en) 1997-09-29
TR199801945T2 (en) 1999-02-22
DE69711030D1 (en) 2002-04-18
DE69711030T2 (en) 2002-09-19
IL126170A (en) 2001-09-13
IL126170A0 (en) 1999-05-09
HU222308B1 (en) 2003-06-28
ITMI960624A0 (en) 1996-03-29
EP0889763B1 (en) 2002-03-13
IT1283320B1 (en) 1998-04-16
WO1997036701A1 (en) 1997-10-09
HUP9903345A3 (en) 2000-04-28
AU2293197A (en) 1997-10-22
EP0889763A1 (en) 1999-01-13

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Legal Events

Date Code Title Description
HFG4 Patent granted, date of granting

Effective date: 20030321

HMM4 Cancellation of final prot. due to non-payment of fee