JPS57165131A - Deep drawing method for tapered double sink - Google Patents

Deep drawing method for tapered double sink

Info

Publication number
JPS57165131A
JPS57165131A JP56048989A JP4898981A JPS57165131A JP S57165131 A JPS57165131 A JP S57165131A JP 56048989 A JP56048989 A JP 56048989A JP 4898981 A JP4898981 A JP 4898981A JP S57165131 A JPS57165131 A JP S57165131A
Authority
JP
Japan
Prior art keywords
blank
punches
deep drawing
pair
creases
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
JP56048989A
Other languages
Japanese (ja)
Other versions
JPS625688B2 (en
Inventor
Jiyousuke Kawachi
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 JP56048989A priority Critical patent/JPS57165131A/en
Publication of JPS57165131A publication Critical patent/JPS57165131A/en
Publication of JPS625688B2 publication Critical patent/JPS625688B2/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
    • B21D22/26—Deep-drawing for making peculiarly, e.g. irregularly, shaped articles

Landscapes

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

Abstract

PURPOSE:To make titled deep drawing without generating creases on the wall part of a blank by using a pair of tapered punches in which the face opposed to the wall of a partition between a pair of parallel holes for forming and pressing the blank into above-mentioned holes for forming. CONSTITUTION:A blank 5 is held between a die 6 and a blank holder 7, and an elevating body 20 attached to a press is pushed down. With descent of punches 19, 19, the blank 5 is drawn in forming holes 8, 8 of die hole 6, and then specified deep drawing is made. while punches 19, 19 are pressed in, specified liquid pressure acts uniformly on the blank 5 as shown in the left half of the figure. Consequently, certain tension acts on the partition 10 of the blank 5 and the shoulder (e) of the punch 19 and creases do not occur in a pat 5A between the corner of inner face 21A. Material for the space is secured between the shoulders (e), (e) of a pair of punches 19, 19 at the beginning of pressing in. Thus, deep drawn tapered double sink that does not cause breakage at the corner (f) of boundary part 22 and free from generation of creases is obtained by deep drawing.
JP56048989A 1981-03-31 1981-03-31 Deep drawing method for tapered double sink Granted JPS57165131A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56048989A JPS57165131A (en) 1981-03-31 1981-03-31 Deep drawing method for tapered double sink

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56048989A JPS57165131A (en) 1981-03-31 1981-03-31 Deep drawing method for tapered double sink

Publications (2)

Publication Number Publication Date
JPS57165131A true JPS57165131A (en) 1982-10-12
JPS625688B2 JPS625688B2 (en) 1987-02-06

Family

ID=12818632

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56048989A Granted JPS57165131A (en) 1981-03-31 1981-03-31 Deep drawing method for tapered double sink

Country Status (1)

Country Link
JP (1) JPS57165131A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61135433A (en) * 1984-12-03 1986-06-23 Honda Motor Co Ltd Die for press forming
JP2006035273A (en) * 2004-07-27 2006-02-09 Shigeru Co Ltd Press drawing method and die device used for the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61135433A (en) * 1984-12-03 1986-06-23 Honda Motor Co Ltd Die for press forming
JP2006035273A (en) * 2004-07-27 2006-02-09 Shigeru Co Ltd Press drawing method and die device used for the same

Also Published As

Publication number Publication date
JPS625688B2 (en) 1987-02-06

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