JPS5785618A - Forming method for cylindrical workpiece - Google Patents

Forming method for cylindrical workpiece

Info

Publication number
JPS5785618A
JPS5785618A JP55159429A JP15942980A JPS5785618A JP S5785618 A JPS5785618 A JP S5785618A JP 55159429 A JP55159429 A JP 55159429A JP 15942980 A JP15942980 A JP 15942980A JP S5785618 A JPS5785618 A JP S5785618A
Authority
JP
Japan
Prior art keywords
roll
work
thickness
difference
controlled
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
JP55159429A
Other languages
Japanese (ja)
Inventor
Terushige Nakamura
Kazuhiko Oshiumi
Yutaka Ishiwata
Kazuo Hikita
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 JP55159429A priority Critical patent/JPS5785618A/en
Publication of JPS5785618A publication Critical patent/JPS5785618A/en
Pending legal-status Critical Current

Links

Landscapes

  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

PURPOSE: To improve accuracy of plate thickness and shape of a thin cylinder after working by detecting the thickness and gap between the mandrel of a work immediately after forming by a roll for final working and controlling the amount of projection and roll speed of the said roll.
CONSTITUTION: The thickness of a work 1 immediately after forming by a roll 43 for final working is detected by a thickness meter 6 and the amount of projection of the roll 43 is controlled by an oil pressure cylinder 123 based on the difference from a set value. Pressure force of other rolls 41, 42 is detected by load cells 121, 122 and the force is controlled to make it equal to that of the roll 43. Next, an imaginary clearance that represents the difference between the outer diameter of the work 1 and a mandrel 2 is calculated from a measured value of a clearance detector 7 provided at the center of rollers 41W43. Relative speed of the roll 43 to the work 1 is controlled by a servo amplifier 84 according to the difference between the imaginary clearance and set value.
COPYRIGHT: (C)1982,JPO&Japio
JP55159429A 1980-11-14 1980-11-14 Forming method for cylindrical workpiece Pending JPS5785618A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55159429A JPS5785618A (en) 1980-11-14 1980-11-14 Forming method for cylindrical workpiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55159429A JPS5785618A (en) 1980-11-14 1980-11-14 Forming method for cylindrical workpiece

Publications (1)

Publication Number Publication Date
JPS5785618A true JPS5785618A (en) 1982-05-28

Family

ID=15693544

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55159429A Pending JPS5785618A (en) 1980-11-14 1980-11-14 Forming method for cylindrical workpiece

Country Status (1)

Country Link
JP (1) JPS5785618A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1348498A2 (en) * 2002-03-22 2003-10-01 K.K.Endo Seisakusho Circular-shaped metal structure, method of fabricating the same, and apparatus for fabricating the same
US7229398B2 (en) 2002-11-27 2007-06-12 Dymco Limited Circular-shaped metal structure and method of fabricating the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1348498A2 (en) * 2002-03-22 2003-10-01 K.K.Endo Seisakusho Circular-shaped metal structure, method of fabricating the same, and apparatus for fabricating the same
EP1348498A3 (en) * 2002-03-22 2003-12-17 K.K.Endo Seisakusho Circular-shaped metal structure, method of fabricating the same, and apparatus for fabricating the same
US7963016B2 (en) 2002-03-22 2011-06-21 K.K. Endo Seisakusho Circular-shaped metal structure, method of fabricating the same, and apparatus for fabricating the same
US7229398B2 (en) 2002-11-27 2007-06-12 Dymco Limited Circular-shaped metal structure and method of fabricating the same

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