ES385749A1 - Method of hot piercing metal billets - Google Patents

Method of hot piercing metal billets

Info

Publication number
ES385749A1
ES385749A1 ES385749A ES385749A ES385749A1 ES 385749 A1 ES385749 A1 ES 385749A1 ES 385749 A ES385749 A ES 385749A ES 385749 A ES385749 A ES 385749A ES 385749 A1 ES385749 A1 ES 385749A1
Authority
ES
Spain
Prior art keywords
punching
tool
hot
expansion
press
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
ES385749A
Other languages
Spanish (es)
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.)
Cefilac SA
Original Assignee
Cefilac SA
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 Cefilac SA filed Critical Cefilac SA
Publication of ES385749A1 publication Critical patent/ES385749A1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/10—Piercing billets
    • 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
    • B21C23/01—Extruding metal; Impact extrusion starting from material of particular form or shape, e.g. mechanically pre-treated

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Of Metal (AREA)
  • Forging (AREA)

Abstract

A billet containing an axially cold drilled cylindrical pilot hole and previously heated to deformation temperature is inserted into a hot piercing press. The pilot hole is flared at its forward end by a hot punching operation in the press itself prior to the application of the lubricant and the expansion operation. The hot punching can be done by a punching tool or by an expansion tool and the force of the press can be transmitted to the expansion tool in the expansion operation directly through a spindle or through the punching tool.
ES385749A 1969-11-27 1970-11-20 Method of hot piercing metal billets Expired ES385749A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6940970A FR2067226A1 (en) 1969-11-27 1969-11-27

Publications (1)

Publication Number Publication Date
ES385749A1 true ES385749A1 (en) 1973-04-16

Family

ID=9043733

Family Applications (1)

Application Number Title Priority Date Filing Date
ES385749A Expired ES385749A1 (en) 1969-11-27 1970-11-20 Method of hot piercing metal billets

Country Status (6)

Country Link
US (1) US3777528A (en)
AT (1) AT304229B (en)
DE (1) DE2057386B2 (en)
ES (1) ES385749A1 (en)
FR (1) FR2067226A1 (en)
GB (1) GB1313370A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50123069A (en) * 1974-03-18 1975-09-27
DE2635342C2 (en) * 1976-08-03 1981-09-24 Mannesmann AG, 4000 Düsseldorf Press for hot punching a metal block
FR2619327A1 (en) * 1987-08-13 1989-02-17 Ardt TOOL STAGE FOR DRILLING A HOLE IN A WORKPIECE BY AXIAL FEEDING OF THE TOOL
DE3804567C1 (en) * 1988-02-13 1989-05-11 W.C. Heraeus Gmbh, 6450 Hanau, De
CN110976544A (en) * 2019-12-18 2020-04-10 攀钢集团江油长城特殊钢有限公司 Hot extrusion blank reaming process

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1948400A (en) * 1931-11-02 1934-02-20 Hydraulik Gmbh Metal extrusion press
CH193142A (en) * 1936-10-28 1937-09-30 Lutz Arthur Sinker.
US2183182A (en) * 1936-12-14 1939-12-12 Wolverine Tube Company Centering device for extruding presses
US2344803A (en) * 1940-10-15 1944-03-21 Ajax Mfg Co Method of forging shovel sockets and the like
GB729317A (en) * 1951-04-18 1955-05-04 Fritz Bernard Hatebur An improved method of and means for mass producing articles provided with at least one step on the outside thereof, particularly sparking plug casings
US2956337A (en) * 1955-08-24 1960-10-18 Cefilac Method of boring metals
IE901849A1 (en) * 1989-07-19 1991-06-19 Gruenenthal Gmbh Plasmids, their preparation and their use in the manufacture¹of a plasminogen activator

Also Published As

Publication number Publication date
DE2057386A1 (en) 1971-06-09
GB1313370A (en) 1973-04-11
DE2057386B2 (en) 1973-06-14
AT304229B (en) 1972-12-27
FR2067226A1 (en) 1971-08-20
US3777528A (en) 1973-12-11

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