JPS6448631A - Sizing method for cylindrical work - Google Patents

Sizing method for cylindrical work

Info

Publication number
JPS6448631A
JPS6448631A JP20696687A JP20696687A JPS6448631A JP S6448631 A JPS6448631 A JP S6448631A JP 20696687 A JP20696687 A JP 20696687A JP 20696687 A JP20696687 A JP 20696687A JP S6448631 A JPS6448631 A JP S6448631A
Authority
JP
Japan
Prior art keywords
work
air pressure
die
fluid chamber
clamping die
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
JP20696687A
Other languages
Japanese (ja)
Inventor
Ichimasa Karashima
Takashi Shinohara
Hidefumi Oshiki
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.)
Aichi Steel Corp
Original Assignee
Aichi Steel 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 Aichi Steel Corp filed Critical Aichi Steel Corp
Priority to JP20696687A priority Critical patent/JPS6448631A/en
Publication of JPS6448631A publication Critical patent/JPS6448631A/en
Pending legal-status Critical Current

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  • Forging (AREA)

Abstract

PURPOSE:To improve the sizing effect by providing a die cushion equipment acting through air pressure, arranging a segmental clamping die, pressing a work with a clamping die and forcing a ram into the work. CONSTITUTION:An air pressure supply device 27 is provided and 1st and 2nd die cushion equipments 9, 18 provided respectively with a 1st fluid chamber 10 and a 2nd fluid chamber 22 are arranged. The air pressure in the fluid chamber 10 is increased to elevate a lifting part 13 and the work W is inserted into the segmental internal circumferential surface 6b of the clamping die 6 to elevate the air pressure between the clamping die 6 and the internal circumferential surface 5a of a die holding part 4. In addition, the ram 2 is dropped from the upper direction under such a state and a punch 17 is pushed into a central hole of the work W to conduct an efficient sizing of the work. Thereby, since the circumferential wall W2 of the work W is corrected securely and the work is inserted and pressed firmly by air pressure, the sizing effect is improved.
JP20696687A 1987-08-20 1987-08-20 Sizing method for cylindrical work Pending JPS6448631A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20696687A JPS6448631A (en) 1987-08-20 1987-08-20 Sizing method for cylindrical work

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20696687A JPS6448631A (en) 1987-08-20 1987-08-20 Sizing method for cylindrical work

Publications (1)

Publication Number Publication Date
JPS6448631A true JPS6448631A (en) 1989-02-23

Family

ID=16531951

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20696687A Pending JPS6448631A (en) 1987-08-20 1987-08-20 Sizing method for cylindrical work

Country Status (1)

Country Link
JP (1) JPS6448631A (en)

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