JPS5641042A - Forging method of long-sized dissimilar diameter ring of hollow truncated circular cone shape - Google Patents

Forging method of long-sized dissimilar diameter ring of hollow truncated circular cone shape

Info

Publication number
JPS5641042A
JPS5641042A JP11621379A JP11621379A JPS5641042A JP S5641042 A JPS5641042 A JP S5641042A JP 11621379 A JP11621379 A JP 11621379A JP 11621379 A JP11621379 A JP 11621379A JP S5641042 A JPS5641042 A JP S5641042A
Authority
JP
Japan
Prior art keywords
diameter
anvil
sleeve
forging
diameter part
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
JP11621379A
Other languages
Japanese (ja)
Other versions
JPS5746938B2 (en
Inventor
Akio Oyanagi
Tsutomu Asano
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.)
Japan Steel Works Ltd
Original Assignee
Japan Steel Works Ltd
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 Japan Steel Works Ltd filed Critical Japan Steel Works Ltd
Priority to JP11621379A priority Critical patent/JPS5641042A/en
Publication of JPS5641042A publication Critical patent/JPS5641042A/en
Publication of JPS5746938B2 publication Critical patent/JPS5746938B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Forging (AREA)

Abstract

PURPOSE: To perform the titled forging with good workability and yield by suspending a forging blank material to a irregular shaped sleeve having a predetermined shape, and applying predetermined forging between the anvil and the irregular shaped sleeve fitted to a mandrel.
CONSTITUTION: A mandrel 16 fitted with a dissimilar diameter sleeve 15 matched to the inside shape of a long-sized irregular shaped ring of a hollow truncated circular cone shape is supported by a mandrel support base 24, and a forging blank material 9 provided with wall thickness differences is suspended to this. The hole expanding of its large-diameter part 12 is then forged by the hole expanding anvil 17, core and dissimilar diameter sleeve 15. Thence, when the diameter difference between the large-diameter part 12 and the small-diameter part 11 becomes more than a certain degree, a ring 18 is fitted to the small-diameter part 11 and in the state that the expanding of the small-diameter part 11 is restrained, the hole expanding of the large-diameter part 12 is performed. Thence, the anvil 17 is replaced with an anvil 19 provided with a tapered part 25 and a convex part 26, and the hole expanding is further continued in such a manner that the tapered part of the forging blank material is smoothed by the tapered part 25 of the anvil and the taped part 27 of the dissimilar diameter sleeve, whereby the ring is formed.
COPYRIGHT: (C)1981,JPO&Japio
JP11621379A 1979-09-12 1979-09-12 Forging method of long-sized dissimilar diameter ring of hollow truncated circular cone shape Granted JPS5641042A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11621379A JPS5641042A (en) 1979-09-12 1979-09-12 Forging method of long-sized dissimilar diameter ring of hollow truncated circular cone shape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11621379A JPS5641042A (en) 1979-09-12 1979-09-12 Forging method of long-sized dissimilar diameter ring of hollow truncated circular cone shape

Publications (2)

Publication Number Publication Date
JPS5641042A true JPS5641042A (en) 1981-04-17
JPS5746938B2 JPS5746938B2 (en) 1982-10-06

Family

ID=14681629

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11621379A Granted JPS5641042A (en) 1979-09-12 1979-09-12 Forging method of long-sized dissimilar diameter ring of hollow truncated circular cone shape

Country Status (1)

Country Link
JP (1) JPS5641042A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01282418A (en) * 1988-05-09 1989-11-14 Hitachi Ltd Piezo-electric type physical quantity detector
CN1101283C (en) * 2000-03-01 2003-02-12 中国贵州航空工业集团安大锻造厂 Integral forging process of large mounting edge for engine and gas turbine
CN103084534A (en) * 2011-11-01 2013-05-08 上海重型机器厂有限公司 Manufacturing method of cone-cylinder shaped forged piece of nuclear power evaporator transition cone
CN103480784A (en) * 2013-09-26 2014-01-01 贵州航宇科技发展股份有限公司 Method for manufacturing drum forging for centrifugal machine
RU2597852C2 (en) * 2014-05-14 2016-09-20 Закрытое акционерное общество Научно-производственное объединение "Тяжпромарматура" Ball valve half-body and preparation method thereof
CN106216590A (en) * 2016-08-16 2016-12-14 二重集团（德阳）重型装备股份有限公司 Profiling forging apparatus with straight section conical shell
CN106424507A (en) * 2016-08-31 2017-02-22 安徽马钢重型机械制造有限公司 Rail type free forging mandrel supporter and using method thereof
CN110479947A (en) * 2019-09-30 2019-11-22 中国第一重型机械股份公司 Hydrogenator changeover portion profiling forging method
CN111496154A (en) * 2020-04-24 2020-08-07 石钢京诚装备技术有限公司 Sleeve auxiliary tool and method for producing step hole sleeve type forge piece

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102825187B (en) * 2011-06-17 2015-08-19 上海重型机器厂有限公司 The forging method of generation Ⅲ nuclear power station steam generator ellipsoidal head ring forging

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01282418A (en) * 1988-05-09 1989-11-14 Hitachi Ltd Piezo-electric type physical quantity detector
JPH071207B2 (en) * 1988-05-09 1995-01-11 株式会社日立製作所 Piezoelectric physical quantity detector
CN1101283C (en) * 2000-03-01 2003-02-12 中国贵州航空工业集团安大锻造厂 Integral forging process of large mounting edge for engine and gas turbine
CN103084534A (en) * 2011-11-01 2013-05-08 上海重型机器厂有限公司 Manufacturing method of cone-cylinder shaped forged piece of nuclear power evaporator transition cone
CN103480784A (en) * 2013-09-26 2014-01-01 贵州航宇科技发展股份有限公司 Method for manufacturing drum forging for centrifugal machine
CN103480784B (en) * 2013-09-26 2015-04-08 贵州航宇科技发展股份有限公司 Method for manufacturing drum forging for centrifugal machine
RU2597852C2 (en) * 2014-05-14 2016-09-20 Закрытое акционерное общество Научно-производственное объединение "Тяжпромарматура" Ball valve half-body and preparation method thereof
CN106216590A (en) * 2016-08-16 2016-12-14 二重集团（德阳）重型装备股份有限公司 Profiling forging apparatus with straight section conical shell
CN106424507A (en) * 2016-08-31 2017-02-22 安徽马钢重型机械制造有限公司 Rail type free forging mandrel supporter and using method thereof
CN110479947A (en) * 2019-09-30 2019-11-22 中国第一重型机械股份公司 Hydrogenator changeover portion profiling forging method
CN110479947B (en) * 2019-09-30 2021-07-06 中国第一重型机械股份公司 Copying forging method for transition section of hydrogenation reactor
CN111496154A (en) * 2020-04-24 2020-08-07 石钢京诚装备技术有限公司 Sleeve auxiliary tool and method for producing step hole sleeve type forge piece

Also Published As

Publication number Publication date
JPS5746938B2 (en) 1982-10-06

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