AU2293197A - 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
AU2293197A
AU2293197A AU22931/97A AU2293197A AU2293197A AU 2293197 A AU2293197 A AU 2293197A AU 22931/97 A AU22931/97 A AU 22931/97A AU 2293197 A AU2293197 A AU 2293197A AU 2293197 A AU2293197 A AU 2293197A
Authority
AU
Australia
Prior art keywords
extrusion
variable
accordance
thickness
unit
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.)
Abandoned
Application number
AU22931/97A
Other languages
English (en)
Inventor
Angelo Gandini
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.)
MICROCOCHLEA Srl
Original Assignee
MICROCOCHLEA Srl
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 MICROCOCHLEA Srl filed Critical MICROCOCHLEA Srl
Publication of AU2293197A publication Critical patent/AU2293197A/en
Abandoned 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, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS 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, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS 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, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS 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, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS 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)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Extrusion Of Metal (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
AU22931/97A 1996-03-29 1997-03-26 Variable-thickness extrusion method and extrusion unit in accordance with said method Abandoned AU2293197A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITMI96A0624 1996-03-29
IT96MI000624A IT1283320B1 (it) 1996-03-29 1996-03-29 Metodo di estrusione a spessore variabile e gruppo di estrusione secondo tale metodo
PCT/EP1997/001610 WO1997036701A1 (en) 1996-03-29 1997-03-26 Variable-thickness extrusion method and extrusion unit in accordance with said method

Publications (1)

Publication Number Publication Date
AU2293197A true AU2293197A (en) 1997-10-22

Family

ID=11373823

Family Applications (1)

Application Number Title Priority Date Filing Date
AU22931/97A Abandoned AU2293197A (en) 1996-03-29 1997-03-26 Variable-thickness extrusion method and extrusion unit in accordance with said method

Country Status (8)

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

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2899499B1 (fr) * 2006-04-11 2009-02-27 Manoir Ind Soc Par Actions Sim Procede d'extrusion de precision de pieces metalliques creuses et dispositif associe
DE102008027423A1 (de) * 2008-06-10 2009-12-17 Neumayer Tekfor Holding Gmbh Pressteil und Verfahren zu dessen Herstellung
CN103464498A (zh) * 2012-06-06 2013-12-25 镇江建华轴承有限公司 轴承外圈特殊型腔精密加工方法
EP3345694B1 (de) * 2017-01-05 2024-05-22 FELSS Systems GmbH Verfahren und vorrichtung zum insbesondere abschnittweisen verdicken einer plastisch verformbaren hohlkörperwand eines hohlkörpers sowie fertigungsverfahren und maschine zum fertigen eines hohlkörpers
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 (zh) * 2017-12-20 2019-01-11 万金芬 一种局部圆凸钢板条的制造系统
DE102019002187B4 (de) * 2019-03-27 2020-10-15 Universität Stuttgart Verfahren und Vorrichtung zum Herstellen eines Bauteils mit Gewinde
CN111112364B (zh) * 2019-12-25 2022-07-19 北京机电研究所有限公司 一种适用于弹体类深孔挤压件的阶梯式深孔挤压工艺
CN111389944B (zh) * 2020-03-26 2021-01-29 燕山大学 一种厚壁圆筒挤压旋转成形方法
CN112517816B (zh) * 2020-10-16 2022-04-08 中北大学 外纵筋筒形件双向间歇式差速镦粗复合挤压成形方法
CN112517658B (zh) * 2020-10-16 2022-04-08 中北大学 外纵筋筒形件双向差速挤压成形模具
CN112517657B (zh) * 2020-10-16 2022-04-08 中北大学 外纵筋筒形件双向差速挤压成形方法
US12313386B2 (en) 2023-10-30 2025-05-27 Mannis Operations LLC Modifying a projectile casing

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE327315C (de) * 1920-01-23 1920-10-09 Oberschlesische Eisenbahn Beda Verfahren und Gesenk zur Herstellung von mit aeusseren Ansaetzen versehenen Hohlkoerpern
CH90356A (fr) * 1920-08-10 1921-09-01 Usines Thecla S A Dispositif pour la frappe à chaud des métaux.
US1702278A (en) * 1928-05-18 1929-02-19 Simons Abraham Method of making seamless containers
FR1112344A (fr) * 1953-11-12 1956-03-13 Kabel U Metallwerke Neumeyer A Procédé et dispositif d'estampage à la presse, en particulier à froid, de pièces de forme à collerette, en métal, de préférence en acier
DE2144006C3 (de) * 1971-09-02 1974-03-07 Kabel- Und Metallwerke Gutehoffnungshuette Ag, 3000 Hannover Verfahren zur Herstellung von Kegelzahnrädern
CH633980A5 (en) * 1980-03-05 1983-01-14 Tusa Sa Impact extrusion device
JPS58110118A (ja) * 1981-12-25 1983-06-30 Nissan Motor Co Ltd 筒状体の製造方法
JPS59199142A (ja) * 1983-04-27 1984-11-12 Tokai Rika Co Ltd 中空筒体の冷間鍛造法
JPS62107838A (ja) * 1985-11-05 1987-05-19 Toyota Motor Corp 底付テ−パ穴カツプの成形方法

Also Published As

Publication number Publication date
IL126170A (en) 2001-09-13
HU222308B1 (hu) 2003-06-28
DE69711030T2 (de) 2002-09-19
TR199801945T2 (xx) 1999-02-22
DE69711030D1 (de) 2002-04-18
IT1283320B1 (it) 1998-04-16
EP0889763B1 (en) 2002-03-13
HUP9903345A3 (en) 2000-04-28
HUP9903345A2 (hu) 2000-02-28
EP0889763A1 (en) 1999-01-13
ITMI960624A1 (it) 1997-09-29
ITMI960624A0 (enrdf_load_stackoverflow) 1996-03-29
IL126170A0 (en) 1999-05-09
WO1997036701A1 (en) 1997-10-09

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