JPS574347A - Method and device for manufacturing pipe of pipe punching machine - Google Patents

Method and device for manufacturing pipe of pipe punching machine

Info

Publication number
JPS574347A
JPS574347A JP6514881A JP6514881A JPS574347A JP S574347 A JPS574347 A JP S574347A JP 6514881 A JP6514881 A JP 6514881A JP 6514881 A JP6514881 A JP 6514881A JP S574347 A JPS574347 A JP S574347A
Authority
JP
Japan
Prior art keywords
mandrel
tubular body
pipe
punching
diameter
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.)
Pending
Application number
JP6514881A
Other languages
Japanese (ja)
Inventor
Ooberemu Karuru
Ramupe Arufuretsuto
Pioruko Ingo
Shiyumitsuto Pauru
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Publication of JPS574347A publication Critical patent/JPS574347A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
    • B21B17/02—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length
    • 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
    • B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes
    • B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes specially adapted for making tubular articles
    • B21C1/24—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes specially adapted for making tubular articles by means of mandrels
    • B21C1/26—Push-bench drawing
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Metal Rolling (AREA)
  • Metal Extraction Processes (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

PURPOSE: To manufacture long-sized pipes at high yield in a short time by performing punching at a low rate of reduction in the early stage by using a mandrel inserted into a tubular body whose front end is reduced in diameter by swaging work, and then by increasing a punching speed.
CONSTITUTION: The front end 4 of a tubular body 1 is reduced in diameter in a conical shape so that the angle of the cone is 22W28°, and then a mandrel 2 is inserted into this tubular body 1. Then, the tubular body 1 is moved forth by the mandrel 2 until it comes into contact with the 1st die 6, and further the mandrel 2 is advanced slightly into the die 6; and the end is moved invard to decrease its minimum internal diameter. Therefore, the supporting section between the mandrel 2 and tubular body 1 is increased to transfer high punching force. Then, the supporting section is furthr increased at the 2nd stand 7 and the hole punching force is transferred at the 3rd stand 8. Namely, a small amount of material is used for the swaged part, so that loss of material due to the swaging work is small, improving the productivity of long-sized pipes on the whole.
COPYRIGHT: (C)1982,JPO&Japio
JP6514881A 1980-06-09 1981-04-28 Method and device for manufacturing pipe of pipe punching machine Pending JPS574347A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3021940A DE3021940C2 (en) 1980-06-09 1980-06-09 Method and system for the production of pipes on pipe push bench systems

Publications (1)

Publication Number Publication Date
JPS574347A true JPS574347A (en) 1982-01-09

Family

ID=6104373

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6514881A Pending JPS574347A (en) 1980-06-09 1981-04-28 Method and device for manufacturing pipe of pipe punching machine

Country Status (9)

Country Link
JP (1) JPS574347A (en)
KR (1) KR850001567B1 (en)
DE (1) DE3021940C2 (en)
ES (1) ES8201856A1 (en)
FR (1) FR2483809A1 (en)
GB (1) GB2077165B (en)
IT (1) IT1138349B (en)
MX (1) MX152303A (en)
ZA (1) ZA813868B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3309797A1 (en) * 1983-03-18 1984-09-20 Kocks Technik Gmbh & Co, 4010 Hilden METHOD AND SYSTEM FOR PRODUCING SEAMLESS TUBES
DE3632522A1 (en) * 1986-09-25 1988-03-31 Kocks Technik Method and installation for the production of tube blanks
DE3742155C2 (en) * 1987-12-10 1995-01-05 Mannesmann Ag Device for the production of seamless pipes
DE10333507B3 (en) * 2003-07-18 2004-09-23 V&M Deutschland Gmbh Process to manufacture a seamless steel pipe by punching hot metal block with a mandrel followed by passage through inclined nip mill
CN101920263B (en) * 2010-07-29 2012-06-06 沈阳东方钢铁有限公司 Method for producing medium and small aperture seamless steel tube by reducing and rolling hollow continuous cast tube blank
DE102015109092A1 (en) 2015-06-09 2016-12-15 Sms Group Gmbh Method for operating a seamless pipe system and seamless pipe system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1081853B (en) * 1956-06-06 1960-05-19 Pompey Acieries Method for producing hollow bodies open on one side by punching a block and then stretching out the hole in a push bench
GB1092717A (en) * 1964-11-18 1967-11-29 Tube Mill Holding Sa Plant and process for producing seamless tubes using a push-bench, and seamless tubes produced by the process
DE1452255A1 (en) * 1965-01-16 1969-04-17 Demag Ag Method and device for the production of pipes of great length on pipe push bench systems
DE2812778C2 (en) * 1978-03-23 1983-03-17 Kocks Technik Gmbh & Co, 4010 Hilden Plant for the production of seamless tubes

Also Published As

Publication number Publication date
IT1138349B (en) 1986-09-17
GB2077165A (en) 1981-12-16
KR850001567B1 (en) 1985-10-19
KR830005920A (en) 1983-09-14
ES500887A0 (en) 1982-01-16
ZA813868B (en) 1982-06-30
MX152303A (en) 1985-06-25
DE3021940C2 (en) 1982-05-19
FR2483809A1 (en) 1981-12-11
GB2077165B (en) 1983-09-01
IT8121809A0 (en) 1981-05-19
DE3021940A1 (en) 1981-12-17
ES8201856A1 (en) 1982-01-16
FR2483809B1 (en) 1984-11-23

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