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JPS57209719A - Press working method - Google Patents

Press working method

Info

Publication number
JPS57209719A
JPS57209719A JP9210981A JP9210981A JPS57209719A JP S57209719 A JPS57209719 A JP S57209719A JP 9210981 A JP9210981 A JP 9210981A JP 9210981 A JP9210981 A JP 9210981A JP S57209719 A JPS57209719 A JP S57209719A
Authority
JP
Japan
Prior art keywords
joggle
holes
side wall
forming
warping
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
JP9210981A
Other languages
Japanese (ja)
Inventor
Kazuhiko Yoshimura
Kiyoshi Yamaoka
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
Toyota Jidosha Kogyo KK
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 Toyota Motor Corp, Toyota Jidosha Kogyo KK filed Critical Toyota Motor Corp
Priority to JP9210981A priority Critical patent/JPS57209719A/en
Publication of JPS57209719A publication Critical patent/JPS57209719A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/18—Joggling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

PURPOSE:To prevent generation of deformation caused by working such as warping, etc. and to stabilize the dimensional accuracy of side walls by forming a joggle on at least one face of thin steel sheet to be press-formed. CONSTITUTION:A curved upper face is formed by drawing a thin steel sheet, and holes 4 are formed by piercing. After forming a joggle 5, the side wall 9 is bent in the direction of the arrow 6 to a position 7. By forming above-mentioned joggle 5, excess of material caused by drawing work is abosrbed and a hardened line generated at boundary between the drawing work and bending work of the side wall 9 is also absorbed. Thus, generation of waving, warping, deformation of holes, etc. are prevented, the rigidity of the side wall 9 is increased and the dimensional accuracy is stabilized. It is desirable to form the joggle nearly straight in the longitudinal direction of the product and at a place between the line hardened by drawing work and holes 4.
JP9210981A 1981-06-17 1981-06-17 Press working method Pending JPS57209719A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9210981A JPS57209719A (en) 1981-06-17 1981-06-17 Press working method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9210981A JPS57209719A (en) 1981-06-17 1981-06-17 Press working method

Publications (1)

Publication Number Publication Date
JPS57209719A true JPS57209719A (en) 1982-12-23

Family

ID=14045258

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9210981A Pending JPS57209719A (en) 1981-06-17 1981-06-17 Press working method

Country Status (1)

Country Link
JP (1) JPS57209719A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04187321A (en) * 1990-11-22 1992-07-06 Nissan Motor Co Ltd Method for forming car body panel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04187321A (en) * 1990-11-22 1992-07-06 Nissan Motor Co Ltd Method for forming car body panel

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