ZA708022B - Improvement in the hot piercing of metal billets - Google Patents

Improvement in the hot piercing of metal billets

Info

Publication number
ZA708022B
ZA708022B ZA708022A ZA708022A ZA708022B ZA 708022 B ZA708022 B ZA 708022B ZA 708022 A ZA708022 A ZA 708022A ZA 708022 A ZA708022 A ZA 708022A ZA 708022 B ZA708022 B ZA 708022B
Authority
ZA
South Africa
Prior art keywords
improvement
hot piercing
metal billets
billets
metal
Prior art date
Application number
ZA708022A
Other languages
English (en)
Inventor
A Malegue
Original Assignee
Cefilac
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 filed Critical Cefilac
Publication of ZA708022B publication Critical patent/ZA708022B/xx

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Extrusion Of Metal (AREA)
  • Lubricants (AREA)
ZA708022A 1969-11-26 1970-11-26 Improvement in the hot piercing of metal billets ZA708022B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6940768A FR2069879A1 (cs) 1969-11-26 1969-11-26

Publications (1)

Publication Number Publication Date
ZA708022B true ZA708022B (en) 1971-08-25

Family

ID=9043662

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA708022A ZA708022B (en) 1969-11-26 1970-11-26 Improvement in the hot piercing of metal billets

Country Status (6)

Country Link
US (1) US3712103A (cs)
AT (1) AT303493B (cs)
DE (1) DE2057629A1 (cs)
FR (1) FR2069879A1 (cs)
GB (1) GB1297690A (cs)
ZA (1) ZA708022B (cs)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4085606A (en) * 1976-12-09 1978-04-25 Westinghouse Electric Corporation Hydrostatic extrusion apparatus for producing hollow elongated bodies of rectangular cross section
CN100551564C (zh) * 2005-06-14 2009-10-21 住友金属工业株式会社 一种穿孔机和用于穿孔机的顶头及无缝管的制造方法
JP4518205B2 (ja) * 2008-12-01 2010-08-04 住友金属工業株式会社 熱間穿孔用上面ガラス成形材および熱間押出製管用ビレットの製造方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1802785A (en) * 1924-10-11 1931-04-28 Singer Fritz Method of extruding long seamless tubing
DE728356C (de) * 1939-10-03 1942-11-25 Mannesmann Ag Verfahren zum Strangpressen von Rohren
US2320071A (en) * 1940-11-23 1943-05-25 Ferrex Corp Apparatus for extruding metals
GB1150171A (en) * 1966-04-19 1969-04-30 Chesterfield Tube Company Ltd Formation of Hollow Metal Billets.
US3580038A (en) * 1968-04-03 1971-05-25 Cefilac Extrusion mandrel and method
FR1601305A (cs) * 1968-06-26 1970-08-17

Also Published As

Publication number Publication date
FR2069879A1 (cs) 1971-09-10
AT303493B (de) 1972-10-15
DE2057629A1 (de) 1971-06-09
GB1297690A (cs) 1972-11-29
US3712103A (en) 1973-01-23

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