JPS5592245A - Forging method of crankshaft or the like - Google Patents

Forging method of crankshaft or the like

Info

Publication number
JPS5592245A
JPS5592245A JP16396678A JP16396678A JPS5592245A JP S5592245 A JPS5592245 A JP S5592245A JP 16396678 A JP16396678 A JP 16396678A JP 16396678 A JP16396678 A JP 16396678A JP S5592245 A JPS5592245 A JP S5592245A
Authority
JP
Japan
Prior art keywords
stem
die
minute
forging
specified volume
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
JP16396678A
Other languages
Japanese (ja)
Other versions
JPS5720049B2 (en
Inventor
Masaji Makino
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.)
Musashi Seimitsu Industry Co Ltd
Original Assignee
Musashi Seimitsu Industry Co 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 Musashi Seimitsu Industry Co Ltd filed Critical Musashi Seimitsu Industry Co Ltd
Priority to JP16396678A priority Critical patent/JPS5592245A/en
Publication of JPS5592245A publication Critical patent/JPS5592245A/en
Publication of JPS5720049B2 publication Critical patent/JPS5720049B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/06—Making machine elements axles or shafts
    • B21K1/08—Making machine elements axles or shafts crankshafts

Landscapes

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

Abstract

PURPOSE: To make flash formation minute and improve the yield of material, etc. by heating the steel-made solid blank of the specified volume to the specified temperature, molding a preform with a stem through hermetic forging then molding the stem part to the flange part of a desired shape through hermetic forging.
CONSTITUTION: In forging of a crankshaft 5b having a stem part 7b and a flange part 6b on one end side of said stem part, a solid blank 5 of a diameter larger than that of the stem part 7b and of the specified volume having been empirically obtained is beforehand heated to temperatures of about 850W950°C and is molded to the preform 5a consisting of the head part 6a and stem part 7a of the specified volume by a die 20 and punch 10 (a minute clearance a is provided between the end part 11 and die 20). Thence, the above-mentioned head part 6a is molded to the flange part 6b of the desired shape by an upper die 30 (the side clearance f and grades e, f, d obtained empirically are provided between the same and a lower die 40) and lower die 40, whereby the formation of flash 8 is made minute.
COPYRIGHT: (C)1980,JPO&Japio
JP16396678A 1978-12-29 1978-12-29 Forging method of crankshaft or the like Granted JPS5592245A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16396678A JPS5592245A (en) 1978-12-29 1978-12-29 Forging method of crankshaft or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16396678A JPS5592245A (en) 1978-12-29 1978-12-29 Forging method of crankshaft or the like

Publications (2)

Publication Number Publication Date
JPS5592245A true JPS5592245A (en) 1980-07-12
JPS5720049B2 JPS5720049B2 (en) 1982-04-26

Family

ID=15784192

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16396678A Granted JPS5592245A (en) 1978-12-29 1978-12-29 Forging method of crankshaft or the like

Country Status (1)

Country Link
JP (1) JPS5592245A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4967584A (en) * 1988-02-19 1990-11-06 Nissan Motor Co., Ltd. Method of making a forging in closed-dies
DE102007002826A1 (en) * 2007-01-19 2008-07-31 Audi Ag Crank shaft forging or casting method for motor vehicle, involves implementing forging or casting process in shaft such that section of material joint of shaft runs outside level, in which axis of shaft lies
JP2019132361A (en) * 2018-01-31 2019-08-08 本田技研工業株式会社 Crank shaft and manufacturing method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4967584A (en) * 1988-02-19 1990-11-06 Nissan Motor Co., Ltd. Method of making a forging in closed-dies
DE102007002826A1 (en) * 2007-01-19 2008-07-31 Audi Ag Crank shaft forging or casting method for motor vehicle, involves implementing forging or casting process in shaft such that section of material joint of shaft runs outside level, in which axis of shaft lies
DE102007002826B4 (en) * 2007-01-19 2008-10-30 Audi Ag A method for forging or casting a shaft, as well as a forged or cast shaft
JP2019132361A (en) * 2018-01-31 2019-08-08 本田技研工業株式会社 Crank shaft and manufacturing method thereof

Also Published As

Publication number Publication date
JPS5720049B2 (en) 1982-04-26

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