JPS55161520A - Forming method for cavity - Google Patents

Forming method for cavity

Info

Publication number
JPS55161520A
JPS55161520A JP7095079A JP7095079A JPS55161520A JP S55161520 A JPS55161520 A JP S55161520A JP 7095079 A JP7095079 A JP 7095079A JP 7095079 A JP7095079 A JP 7095079A JP S55161520 A JPS55161520 A JP S55161520A
Authority
JP
Japan
Prior art keywords
work
center part
thin paper
cavity
center
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
JP7095079A
Other languages
Japanese (ja)
Inventor
Hiromasa Yokota
Nobuo Miyairi
Yoshimitsu Nakajima
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP7095079A priority Critical patent/JPS55161520A/en
Publication of JPS55161520A publication Critical patent/JPS55161520A/en
Pending legal-status Critical Current

Links

Landscapes

  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

PURPOSE: To make possible the formation of the cavity without soiling the working apparatus, by interposing thin paper between the work and the center, and by carrying out the pressure welding work.
CONSTITUTION: The work 12 is caught between the chucks 11, 11', and the moving part 1 provided with the center part 5 is brought near the base 9 to which the work 12 is set. Hereupon, the center part 5 is pressure welded to one end face of the work 12 as the thin paper 15 is being interposed between the center part 5 and the work 12. As a result, the specified cavity is formed in one end face of the work 12 by the plastic deformation. The thin paper 15 is disintegrated into fine fibers which act as the lubricant without leaving any indent of fibers on the work 12. By this lubricating action, the abrasion of the center part 5 is restricted, and besides, the pressure welding between the center part 5 and the work 12 is restrained. Next, the moving part 1 is relatively separated from the base 9, and both are returned to each initial position. Hereupon, no tension generates between the center part 5 and the work 12 because of the action of the thin paper 15 as the releasing agent.
COPYRIGHT: (C)1980,JPO&Japio
JP7095079A 1979-06-05 1979-06-05 Forming method for cavity Pending JPS55161520A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7095079A JPS55161520A (en) 1979-06-05 1979-06-05 Forming method for cavity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7095079A JPS55161520A (en) 1979-06-05 1979-06-05 Forming method for cavity

Publications (1)

Publication Number Publication Date
JPS55161520A true JPS55161520A (en) 1980-12-16

Family

ID=13446285

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7095079A Pending JPS55161520A (en) 1979-06-05 1979-06-05 Forming method for cavity

Country Status (1)

Country Link
JP (1) JPS55161520A (en)

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