JPS5581094A - Forging method of integral type end plate - Google Patents

Forging method of integral type end plate

Info

Publication number
JPS5581094A
JPS5581094A JP15364778A JP15364778A JPS5581094A JP S5581094 A JPS5581094 A JP S5581094A JP 15364778 A JP15364778 A JP 15364778A JP 15364778 A JP15364778 A JP 15364778A JP S5581094 A JPS5581094 A JP S5581094A
Authority
JP
Japan
Prior art keywords
product
blank
anvil
spherical
end plate
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
JP15364778A
Other languages
Japanese (ja)
Other versions
JPS5538216B2 (en
Inventor
Haruo Abe
Tetsuo Koshitani
Kazuhiro Nakada
Chikayuki Matsumoto
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.)
NIPPON CHIYUUTANKOU KK
Original Assignee
NIPPON CHIYUUTANKOU 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 NIPPON CHIYUUTANKOU KK filed Critical NIPPON CHIYUUTANKOU KK
Priority to JP15364778A priority Critical patent/JPS5581094A/en
Publication of JPS5581094A publication Critical patent/JPS5581094A/en
Publication of JPS5538216B2 publication Critical patent/JPS5538216B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K23/00—Alumino-thermic welding

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

PURPOSE:To easily produce a seamless, large-sized dome (end plate) having a uniform metal flow in the radial direction, by forming a thick disc-shaped steel blank of which thickness is about more than 1.5 times the product thickness, into a spherical form by rotary expansion forging. CONSTITUTION:A plate-shaped upper anvil 13 (of which contact face 15 to a molding 20 should be as thick as possible) having a contour of a circle of outside diameter corresponding to the inside diameter of a product 20, with a circular end part 14 thereof being cut off horizontally, is vertically mounted on a pressing machine for processing 10 in a way rotatable more than 180 degrees, and a spherical lower anvil 11 having a spherical surface corresponding to the outside diameter of the product 20 formed in the inside is disposed in the lower part thereof. A disc-shaped steel blank 12 is placed on the lower anvil 11 and fitted horizontally, and the upper anvil 13 is pressed on the surface of the blank 12 while rotating gradually in the direction of arrow X by one pressing each. Thus, the blank 12 is gradually expanded to form a product 20 in dome shape.
JP15364778A 1978-12-14 1978-12-14 Forging method of integral type end plate Granted JPS5581094A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15364778A JPS5581094A (en) 1978-12-14 1978-12-14 Forging method of integral type end plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15364778A JPS5581094A (en) 1978-12-14 1978-12-14 Forging method of integral type end plate

Publications (2)

Publication Number Publication Date
JPS5581094A true JPS5581094A (en) 1980-06-18
JPS5538216B2 JPS5538216B2 (en) 1980-10-02

Family

ID=15567098

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15364778A Granted JPS5581094A (en) 1978-12-14 1978-12-14 Forging method of integral type end plate

Country Status (1)

Country Link
JP (1) JPS5581094A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012066291A (en) * 2010-09-24 2012-04-05 Kobe Steel Ltd Press die and pressing method using the press die

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012066291A (en) * 2010-09-24 2012-04-05 Kobe Steel Ltd Press die and pressing method using the press die

Also Published As

Publication number Publication date
JPS5538216B2 (en) 1980-10-02

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