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EP1155754A3 - Mandrel for skew rolling of metallic hollow bodies in skew rolling mills - Google Patents

Mandrel for skew rolling of metallic hollow bodies in skew rolling mills Download PDF

Info

Publication number
EP1155754A3
EP1155754A3 EP01102440A EP01102440A EP1155754A3 EP 1155754 A3 EP1155754 A3 EP 1155754A3 EP 01102440 A EP01102440 A EP 01102440A EP 01102440 A EP01102440 A EP 01102440A EP 1155754 A3 EP1155754 A3 EP 1155754A3
Authority
EP
European Patent Office
Prior art keywords
mandrel
skew rolling
hollow bodies
base body
metallic hollow
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.)
Granted
Application number
EP01102440A
Other languages
German (de)
French (fr)
Other versions
EP1155754B1 (en
EP1155754A2 (en
Inventor
Thomas Leisten
Frank Salomon
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.)
SMS Siemag AG
Original Assignee
SMS Demag AG
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 SMS Demag AG filed Critical SMS Demag AG
Publication of EP1155754A2 publication Critical patent/EP1155754A2/en
Publication of EP1155754A3 publication Critical patent/EP1155754A3/en
Application granted granted Critical
Publication of EP1155754B1 publication Critical patent/EP1155754B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B25/00—Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor ; Construction of, or alloys for, mandrels or plugs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
    • B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
    • B21B19/04—Rolling basic material of solid, i.e. non-hollow, structure; Piercing, e.g. rotary piercing mills

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Metal Rolling (AREA)
  • Drilling Tools (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Extrusion Of Metal (AREA)

Abstract

Mandrel has balls (2) divided into two longitudinal sections (3), a tip section (3) and a rear longitudinal section (5) as a mandrel base body (6). The whole cross-section of the tip section consists of a high melting material or a high melting material alloy. Preferably the tip section is made from a titanium-molybdenum alloy. The mandrel base body is formed from a high heat-resistant tool steel. A blind hole bore (8) having an inner thread is provided in the mandrel base body.
EP01102440A 2000-05-17 2001-02-03 Mandrel for skew rolling of metallic hollow bodies in skew rolling mills Expired - Lifetime EP1155754B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10024246A DE10024246A1 (en) 2000-05-17 2000-05-17 Perforated mandrel for cross-rolling of metallic hollow bodies on cross-rolling mills
DE10024246 2000-05-17

Publications (3)

Publication Number Publication Date
EP1155754A2 EP1155754A2 (en) 2001-11-21
EP1155754A3 true EP1155754A3 (en) 2004-02-04
EP1155754B1 EP1155754B1 (en) 2005-10-05

Family

ID=7642436

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01102440A Expired - Lifetime EP1155754B1 (en) 2000-05-17 2001-02-03 Mandrel for skew rolling of metallic hollow bodies in skew rolling mills

Country Status (4)

Country Link
EP (1) EP1155754B1 (en)
AT (1) ATE305827T1 (en)
DE (2) DE10024246A1 (en)
ES (1) ES2249331T3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60326086D1 (en) † 2002-12-12 2009-03-19 Sumitomo Metal Ind
DE102007037736B4 (en) * 2007-08-09 2012-11-15 Kocks Technik Gmbh & Co. Kg Mandrel or mandrel for a tube manufacturing process and use of such a mandrel or such a mandrel
CN100577849C (en) * 2008-09-17 2010-01-06 西部金属材料股份有限公司 Method for preparing deep drawing molybdenum belt
MX350356B (en) * 2012-08-24 2017-09-05 Nippon Steel & Sumitomo Metal Corp Plug for hot pipe manufacturing.
DE102013110725B3 (en) 2013-09-27 2015-02-12 Vallourec Deutschland Gmbh Hole punch with improved tool life for the production of seamless pipes
DE102021128128A1 (en) 2021-10-28 2023-05-04 Vallourec Deutschland Gmbh Piercer with a piercer nose for the production of seamless tubes

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62207503A (en) * 1986-03-10 1987-09-11 Nippon Kokan Kk <Nkk> Plug for producing seamless pipe
JPS63203205A (en) * 1987-02-17 1988-08-23 Sumitomo Metal Ind Ltd Plug for drilling machine
JPH01289504A (en) * 1988-05-16 1989-11-21 Sumitomo Metal Ind Ltd Plug for steel pipe drilling machine
JPH02251304A (en) * 1989-03-24 1990-10-09 Sumitomo Metal Ind Ltd Plug for piercer
EP0743106A1 (en) * 1995-05-19 1996-11-20 Nkk Corporation Method for manufacturing seamless pipe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62207503A (en) * 1986-03-10 1987-09-11 Nippon Kokan Kk <Nkk> Plug for producing seamless pipe
JPS63203205A (en) * 1987-02-17 1988-08-23 Sumitomo Metal Ind Ltd Plug for drilling machine
JPH01289504A (en) * 1988-05-16 1989-11-21 Sumitomo Metal Ind Ltd Plug for steel pipe drilling machine
JPH02251304A (en) * 1989-03-24 1990-10-09 Sumitomo Metal Ind Ltd Plug for piercer
EP0743106A1 (en) * 1995-05-19 1996-11-20 Nkk Corporation Method for manufacturing seamless pipe

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 012, no. 061 (M - 671) 24 February 1988 (1988-02-24) *
PATENT ABSTRACTS OF JAPAN vol. 012, no. 484 (M - 776) 16 December 1988 (1988-12-16) *
PATENT ABSTRACTS OF JAPAN vol. 014, no. 069 (M - 0932) 8 February 1990 (1990-02-08) *
PATENT ABSTRACTS OF JAPAN vol. 014, no. 579 (M - 1063) 25 December 1990 (1990-12-25) *

Also Published As

Publication number Publication date
EP1155754B1 (en) 2005-10-05
ES2249331T3 (en) 2006-04-01
EP1155754A2 (en) 2001-11-21
DE10024246A1 (en) 2001-11-22
ATE305827T1 (en) 2005-10-15
DE50107592D1 (en) 2005-11-10

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