JPS57168730A - Deep drawing process - Google Patents

Deep drawing process

Info

Publication number
JPS57168730A
JPS57168730A JP56053956A JP5395681A JPS57168730A JP S57168730 A JPS57168730 A JP S57168730A JP 56053956 A JP56053956 A JP 56053956A JP 5395681 A JP5395681 A JP 5395681A JP S57168730 A JPS57168730 A JP S57168730A
Authority
JP
Japan
Prior art keywords
deep drawing
blank
plates
eliminate
external force
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
JP56053956A
Other languages
Japanese (ja)
Other versions
JPS625690B2 (en
Inventor
Yoshihito Sakai
Jiyousuke Kawachi
Tomoyoshi Muto
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 Zosen Corp
Original Assignee
Hitachi Zosen Corp
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 Zosen Corp filed Critical Hitachi Zosen Corp
Priority to JP56053956A priority Critical patent/JPS57168730A/en
Publication of JPS57168730A publication Critical patent/JPS57168730A/en
Publication of JPS625690B2 publication Critical patent/JPS625690B2/ja
Granted 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/22—Deep-drawing with devices for holding the edge of the blanks
    • B21D22/225—Deep-drawing with devices for holding the edge of the blanks with members for radially pushing the blanks

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

PURPOSE:To eliminate the occurrence of lines and to increase the critical deep drawing ratio when the deep drawing is given to a single barrel, by carrying out the forming while applying the pushing force to a blank in its center direction. CONSTITUTION:The pressure is applied to cylinders 16 and 17, and a blank 15 is pushed toward its center by the external force via push plates 19 and 19. At the same time, a motor 12 is actuated to turn a rotor 10. Thus the blank 15 receives the deep drawing while being pressed by the plates 19 and 19 having turning outer circumference parts. As a result, a partial deformation is minimized for the blank 15 although the external force is increased. Thus an ear part which is produced during the deep drawing process can be strongly pushed in by the plates 19 and 19, and accordingly no wrinkle is caused at the area having a small R value. Furthermore the residual flange part is kept round perfectly to eliminate the cutting process of the ear part 3 after formation.
JP56053956A 1981-04-09 1981-04-09 Deep drawing process Granted JPS57168730A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56053956A JPS57168730A (en) 1981-04-09 1981-04-09 Deep drawing process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56053956A JPS57168730A (en) 1981-04-09 1981-04-09 Deep drawing process

Publications (2)

Publication Number Publication Date
JPS57168730A true JPS57168730A (en) 1982-10-18
JPS625690B2 JPS625690B2 (en) 1987-02-06

Family

ID=12957148

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56053956A Granted JPS57168730A (en) 1981-04-09 1981-04-09 Deep drawing process

Country Status (1)

Country Link
JP (1) JPS57168730A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5973129A (en) * 1982-10-21 1984-04-25 Agency Of Ind Science & Technol Press drawing method in multiple direction
JPH01180728A (en) * 1987-12-28 1989-07-18 Yamakawa Kogyo Kk Forming method for bossed member
US5406823A (en) * 1991-01-18 1995-04-18 Nam Lee Industries (Pte) Ltd. Method of producing a main frame for a shipping container

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5973129A (en) * 1982-10-21 1984-04-25 Agency Of Ind Science & Technol Press drawing method in multiple direction
JPH01180728A (en) * 1987-12-28 1989-07-18 Yamakawa Kogyo Kk Forming method for bossed member
JPH0353049B2 (en) * 1987-12-28 1991-08-13 Yamakawa Kogyo Kk
US5406823A (en) * 1991-01-18 1995-04-18 Nam Lee Industries (Pte) Ltd. Method of producing a main frame for a shipping container

Also Published As

Publication number Publication date
JPS625690B2 (en) 1987-02-06

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