JPS5766818A - Method of shaping dies - Google Patents

Method of shaping dies

Info

Publication number
JPS5766818A
JPS5766818A JP13878580A JP13878580A JPS5766818A JP S5766818 A JPS5766818 A JP S5766818A JP 13878580 A JP13878580 A JP 13878580A JP 13878580 A JP13878580 A JP 13878580A JP S5766818 A JPS5766818 A JP S5766818A
Authority
JP
Japan
Prior art keywords
die
meeting
moving
fixed
spark erosion
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
JP13878580A
Other languages
Japanese (ja)
Inventor
Kimihiro Takase
Tadao Oota
Izumi Uchishiba
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
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 filed Critical Toyota Motor Corp
Priority to JP13878580A priority Critical patent/JPS5766818A/en
Publication of JPS5766818A publication Critical patent/JPS5766818A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
    • B23H9/12—Forming parts of complementary shape, e.g. punch-and-die

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

PURPOSE:To heighten the degree of tight contact of meeting surfaces of a fixed and a moving dies, by shaping one of the dies to protrude its meeting surface by a predetermined quantity and using the shaped die as an electrode to perform spark erosion on the meeting surface of the other die. CONSTITUTION:A core member 6 provided with a cavity 5 is fitted in the opening 11 of a moving die 7 for injection molding. The meeting surface 9' of the core member 6 is protruded by a minute predetermined quantity H above on offset quantity (h). After the meeting surface 9 of a fixed die 4 is roughly processed, the die is secured on the table of a spark erosion machine and the moving die 7 is used electrode to perform spark erosion on the fixed die 4 to machine the fixed die 4 and the moving die 7 so that their meeting surfaces 9, 9' can be put in tight contact with each other along their entire periphery. In the injection molding, cavities 2, 5 are securely sealed to prevent fins from being made.
JP13878580A 1980-10-06 1980-10-06 Method of shaping dies Pending JPS5766818A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13878580A JPS5766818A (en) 1980-10-06 1980-10-06 Method of shaping dies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13878580A JPS5766818A (en) 1980-10-06 1980-10-06 Method of shaping dies

Publications (1)

Publication Number Publication Date
JPS5766818A true JPS5766818A (en) 1982-04-23

Family

ID=15230143

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13878580A Pending JPS5766818A (en) 1980-10-06 1980-10-06 Method of shaping dies

Country Status (1)

Country Link
JP (1) JPS5766818A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63148413U (en) * 1987-03-19 1988-09-29
US8482958B2 (en) 2010-03-18 2013-07-09 Panasonic Corporation Current steering element, memory element, memory, and method of manufacturing current steering element

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63148413U (en) * 1987-03-19 1988-09-29
JPH0539849Y2 (en) * 1987-03-19 1993-10-08
US8482958B2 (en) 2010-03-18 2013-07-09 Panasonic Corporation Current steering element, memory element, memory, and method of manufacturing current steering element

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