IN2015DN01595A - - Google Patents

Info

Publication number
IN2015DN01595A
IN2015DN01595A IN1595DEN2015A IN2015DN01595A IN 2015DN01595 A IN2015DN01595 A IN 2015DN01595A IN 1595DEN2015 A IN1595DEN2015 A IN 1595DEN2015A IN 2015DN01595 A IN2015DN01595 A IN 2015DN01595A
Authority
IN
India
Prior art keywords
crankshaft
cross sectional
forged
flash
die
Prior art date
Application number
Inventor
Tomihiko Fukuyasu
Nobutaka Tanimoto
Junichi Okubo
Kunihiro Yoshida
Original Assignee
Nippon Steel & Sumitomo Metal 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 Nippon Steel & Sumitomo Metal Corp filed Critical Nippon Steel & Sumitomo Metal Corp
Publication of IN2015DN01595A publication Critical patent/IN2015DN01595A/en

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/08—Upsetting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
    • B21J5/025—Closed die forging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
    • B21J5/027—Trimming
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C3/00—Shafts; Axles; Cranks; Eccentrics
    • F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
    • F16C3/06—Crankshafts
    • F16C3/08—Crankshafts made in one piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2220/00—Shaping
    • F16C2220/40—Shaping by deformation without removing material
    • F16C2220/46—Shaping by deformation without removing material by forging
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49286—Crankshaft making

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Forging (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

This method for producing a die forged crankshaft to be mounted in a reciprocating engine of two or more cylinders includes: an upsetting step in which a billet having a uniform cross sectional area along its entire length is upset thereby molding a buster having an expanded cross sectional area in a section extending from the location corresponding to the crank arm portion at the head of the crankshaft to a location corresponding to the crank arm portion at the tail of the crankshaft; a die forging step in which the buster molded in the upsetting step is die forged to mold a forged material shaped into the form of a crankshaft and having flash attached; and a flash removing step for removing flash from the forged material molded in the die forging step. Thus yield is improved and the cross sectional size of the billets used can incorporate smaller sizes.
IN1595DEN2015 2012-07-27 2012-07-27 IN2015DN01595A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2012/004796 WO2014016875A1 (en) 2012-07-27 2012-07-27 Method for producing die-forged crankshaft

Publications (1)

Publication Number Publication Date
IN2015DN01595A true IN2015DN01595A (en) 2015-07-03

Family

ID=49996712

Family Applications (1)

Application Number Title Priority Date Filing Date
IN1595DEN2015 IN2015DN01595A (en) 2012-07-27 2012-07-27

Country Status (5)

Country Link
US (1) US9937550B2 (en)
JP (1) JP5800091B2 (en)
CN (1) CN104487188B (en)
IN (1) IN2015DN01595A (en)
WO (1) WO2014016875A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3037189B1 (en) * 2014-12-23 2018-11-07 Ellwood National Investment Corp. Net shaped forging for fluid end blocks
EP3272439B1 (en) * 2015-03-18 2020-03-11 Nippon Steel Corporation Method for manufacturing forged crankshaft
JP6469856B2 (en) * 2015-05-19 2019-02-13 新日鐵住金株式会社 Forging crankshaft manufacturing apparatus and manufacturing method
CN107391779B (en) * 2016-05-17 2019-08-06 中国科学院金属研究所 A kind of blank shape design method of die forging crankshaft of diesel engine
CN106270356A (en) * 2016-08-02 2017-01-04 盐城市鑫海机械有限公司 A kind of processing method of hay mover eccentric crankshaft
BR112019004724A2 (en) * 2016-09-20 2019-05-28 Nippon Steel & Sumitomo Metal Corp forged crankshaft production method
BR112019005745A2 (en) * 2016-11-29 2019-06-18 Nippon Steel & Sumitomo Metal Corp method for producing forged crankshaft
JP6881135B2 (en) * 2017-08-03 2021-06-02 日本製鉄株式会社 Mold forging member manufacturing method and mold forging member manufacturing equipment
CN112475180A (en) * 2020-11-12 2021-03-12 中国第一重型机械股份公司 Forging die and method for step shaft type forge piece
CN114406171A (en) * 2021-12-10 2022-04-29 钢铁研究总院 Integrated net forming method for band-ring shaft type forge piece

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3713320A (en) * 1971-05-28 1973-01-30 Walker Forge Inc Method of handling metal stock for hot forging
DE2643340C2 (en) * 1976-09-25 1984-06-28 Eumuco Aktiengesellschaft für Maschinenbau, 5090 Leverkusen Method and device for producing a crankshaft by hot forming
JPS58215237A (en) * 1982-06-08 1983-12-14 Musashi Seimitsu Kogyo Kk Manufacture of crank shaft
JPS6160236A (en) * 1984-08-31 1986-03-27 Nagura Tekkosho:Kk Installing method of medium part of blank material and its installing device
JPH02104437A (en) * 1988-10-07 1990-04-17 Mazda Motor Corp Manufacture of connecting rod of aluminium alloy
JPH05228574A (en) 1992-02-21 1993-09-07 Honda Motor Co Ltd Formation of crankshaft
JP3156506B2 (en) 1994-07-12 2001-04-16 日産自動車株式会社 Reverse transfer method of forged product, forging die and press machine used in the method
JP2000094087A (en) * 1998-09-16 2000-04-04 Sumitomo Metal Ind Ltd Technique for manufacturing crankshaft
JP2003326332A (en) * 2002-05-13 2003-11-18 Kobe Steel Ltd Method for forming crankshaft

Also Published As

Publication number Publication date
US9937550B2 (en) 2018-04-10
CN104487188B (en) 2016-07-06
JPWO2014016875A1 (en) 2016-07-07
JP5800091B2 (en) 2015-10-28
CN104487188A (en) 2015-04-01
WO2014016875A1 (en) 2014-01-30
US20150128416A1 (en) 2015-05-14

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