JPS57178624A - Manufacture of crankshaft - Google Patents

Manufacture of crankshaft

Info

Publication number
JPS57178624A
JPS57178624A JP6074081A JP6074081A JPS57178624A JP S57178624 A JPS57178624 A JP S57178624A JP 6074081 A JP6074081 A JP 6074081A JP 6074081 A JP6074081 A JP 6074081A JP S57178624 A JPS57178624 A JP S57178624A
Authority
JP
Japan
Prior art keywords
pin
crank pin
crank
peripheral surface
stress
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
JP6074081A
Other languages
Japanese (ja)
Inventor
Shigezo Fukuda
Eiichi Yoshino
Yasuo Matsutani
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.)
Kubota Corp
Original Assignee
Kubota 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 Kubota Corp filed Critical Kubota Corp
Priority to JP6074081A priority Critical patent/JPS57178624A/en
Publication of JPS57178624A publication Critical patent/JPS57178624A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P2700/00Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
    • B23P2700/07Crankshafts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

PURPOSE:To effectively decrease stress concentrated to the connection area between a crank pin and crank arm, by smoothly forming an angular part of the peripheral surface of the crank pin and molded hollow part through machining work after casting. CONSTITUTION:In the connection areas between a crank pin 2 and crank arm 3, a hollowed part 5, for decreasing concentration of stress, is formed by casting in a surface of the arm 3 approximated to the pin 2 in the vicinity of the rotary center of a crankshaft. And then an angular part A of the peripheral surface of the crank pin 2 and the hollowed part 5 is crushed by machining through abrasive work of shot peening, sand blast, etc., and the pin surface and the hollowed part 5 are smoothly formed and successively connected to grind the peripheral surface of the crank pin 2. In this way, stress in the connection area can be dispersed as shown by (a).
JP6074081A 1981-04-22 1981-04-22 Manufacture of crankshaft Pending JPS57178624A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6074081A JPS57178624A (en) 1981-04-22 1981-04-22 Manufacture of crankshaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6074081A JPS57178624A (en) 1981-04-22 1981-04-22 Manufacture of crankshaft

Publications (1)

Publication Number Publication Date
JPS57178624A true JPS57178624A (en) 1982-11-02

Family

ID=13150950

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6074081A Pending JPS57178624A (en) 1981-04-22 1981-04-22 Manufacture of crankshaft

Country Status (1)

Country Link
JP (1) JPS57178624A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106239070A (en) * 2016-08-31 2016-12-21 广州市航超机器模具制造有限公司 Bent axle processing technology

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5210818A (en) * 1976-07-16 1977-01-27 Nisshin Steel Co Ltd High ni-fe alloy of good productivity

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5210818A (en) * 1976-07-16 1977-01-27 Nisshin Steel Co Ltd High ni-fe alloy of good productivity

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106239070A (en) * 2016-08-31 2016-12-21 广州市航超机器模具制造有限公司 Bent axle processing technology

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