JPS5570401A - Rolling method for chamfering corner of rolled material - Google Patents

Rolling method for chamfering corner of rolled material

Info

Publication number
JPS5570401A
JPS5570401A JP14228778A JP14228778A JPS5570401A JP S5570401 A JPS5570401 A JP S5570401A JP 14228778 A JP14228778 A JP 14228778A JP 14228778 A JP14228778 A JP 14228778A JP S5570401 A JPS5570401 A JP S5570401A
Authority
JP
Japan
Prior art keywords
rolls
couple
segmentalized
rolled material
corner
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
JP14228778A
Other languages
Japanese (ja)
Inventor
Junichi Iifushi
Tateo Tanimoto
Eihiko Tsukamoto
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
Priority to JP14228778A priority Critical patent/JPS5570401A/en
Publication of JPS5570401A publication Critical patent/JPS5570401A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/02Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
    • B21B1/026Rolling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/224Edge rolling of flat products
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B27/00Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02Shape or construction of rolls
    • B21B27/021Rolls for sheets or strips
    • B21B2027/022Rolls having tapered ends

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)

Abstract

PURPOSE:To prevent generation of shear droop in the corner, by applying the rolling the secondary forming roll possessing a couple of flat rolls, after rolling the rolled material with a couple of primary forming rolls of peculiar shape being respectively segmentalized into halves with freely adjustable gaps, at chamfering the corner of of rolled material. CONSTITUTION:The primary forming roll 10 consists of a couple of segmentalized rolls 5, 5', and 6, 6', being freely rotatably and vertically movably born on bearings respectively fitted to a couple of upper and lower rotary shafts 1, 2, laid parallelly to each other; these segmentalized rolls 5, 5', and 6, 6', are respectively fixed to specified positions with fixing jigs 7, 7', and 8, 8'; the gap of segmentalized rolls 5, 5', and 6, 6', is respectively freely adjustable by suitably exchanging the jigs 3, 4. Besides, the rolls 5, 5', and 6, 6', are respectively provided with the cone type chamfering plane with angle theta of inclination 20-30 degrees. After rotation rolls 1, 2, respectively in directions x and y in order to give the roll forming work to the rolled material 9, the anglear protuberance C formed at the corner is vanished by rolling the material with the secondary forming roll 11 provided with a couple of flat rolls.
JP14228778A 1978-11-20 1978-11-20 Rolling method for chamfering corner of rolled material Pending JPS5570401A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14228778A JPS5570401A (en) 1978-11-20 1978-11-20 Rolling method for chamfering corner of rolled material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14228778A JPS5570401A (en) 1978-11-20 1978-11-20 Rolling method for chamfering corner of rolled material

Publications (1)

Publication Number Publication Date
JPS5570401A true JPS5570401A (en) 1980-05-27

Family

ID=15311856

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14228778A Pending JPS5570401A (en) 1978-11-20 1978-11-20 Rolling method for chamfering corner of rolled material

Country Status (1)

Country Link
JP (1) JPS5570401A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5823503A (en) * 1981-08-05 1983-02-12 Kawasaki Steel Corp Rolling method for bar steel
JPH01159901U (en) * 1989-03-30 1989-11-07

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5823503A (en) * 1981-08-05 1983-02-12 Kawasaki Steel Corp Rolling method for bar steel
JPH01159901U (en) * 1989-03-30 1989-11-07
JPH0335441Y2 (en) * 1989-03-30 1991-07-26

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