JPS5461066A - Flange working method for hole portion of sheet material - Google Patents

Flange working method for hole portion of sheet material

Info

Publication number
JPS5461066A
JPS5461066A JP12753977A JP12753977A JPS5461066A JP S5461066 A JPS5461066 A JP S5461066A JP 12753977 A JP12753977 A JP 12753977A JP 12753977 A JP12753977 A JP 12753977A JP S5461066 A JPS5461066 A JP S5461066A
Authority
JP
Japan
Prior art keywords
sheet material
hole
flange
roller
mandrel
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
JP12753977A
Other languages
Japanese (ja)
Other versions
JPS6033570B2 (en
Inventor
Shigeyasu Ueno
Sen Sugiyama
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12753977A priority Critical patent/JPS6033570B2/en
Publication of JPS5461066A publication Critical patent/JPS5461066A/en
Publication of JPS6033570B2 publication Critical patent/JPS6033570B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To give the flange work to the hole portion of sheet material at high accuracy in a short time, by inserting the expander to the punched hole on purpose to plastically work the surface of the hole so as to form the flange.
CONSTITUTION: When a power is supplied to the expander 3 under a condition that the sheet material 1 is unset, the mandrel 4 and the roller 5 rotate respectively in the arrowed direction. Then, the sheet material 1, in which a lower hole 2 is bored, is inserted from the small diameter side of the mandrel 4 into the rotating expander 3; hereby, since the axis of the roller 5 is tilting against the axis of the mandrel 4, the inner surface of the hole 2 of sheet material 1 is gradually expanded by the roller 5, and forms the flange; finally, the sheet material 1 comes out of the right end of the roller 5, and the work is completed. According to this method, the hardness of neighborhood of the hole is greatly improved, so that the mechanical strength and the resistance to wear of the inner surface of the flange are also improved
COPYRIGHT: (C)1979,JPO&Japio
JP12753977A 1977-10-26 1977-10-26 Flange processing method for plate holes Expired JPS6033570B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12753977A JPS6033570B2 (en) 1977-10-26 1977-10-26 Flange processing method for plate holes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12753977A JPS6033570B2 (en) 1977-10-26 1977-10-26 Flange processing method for plate holes

Publications (2)

Publication Number Publication Date
JPS5461066A true JPS5461066A (en) 1979-05-17
JPS6033570B2 JPS6033570B2 (en) 1985-08-03

Family

ID=14962506

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12753977A Expired JPS6033570B2 (en) 1977-10-26 1977-10-26 Flange processing method for plate holes

Country Status (1)

Country Link
JP (1) JPS6033570B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5813416A (en) * 1981-07-15 1983-01-25 Hitachi Ltd Flange working device for hole in plate material
CN106238539A (en) * 2016-10-12 2016-12-21 中国科学院金属研究所 A kind of device and method in turned-out straight flange hole processed on complex-curved hollow closing part

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5813416A (en) * 1981-07-15 1983-01-25 Hitachi Ltd Flange working device for hole in plate material
JPH0119971B2 (en) * 1981-07-15 1989-04-13 Hitachi Ltd
CN106238539A (en) * 2016-10-12 2016-12-21 中国科学院金属研究所 A kind of device and method in turned-out straight flange hole processed on complex-curved hollow closing part

Also Published As

Publication number Publication date
JPS6033570B2 (en) 1985-08-03

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