JPS56116823A - Production of connecting rod - Google Patents

Production of connecting rod

Info

Publication number
JPS56116823A
JPS56116823A JP1742880A JP1742880A JPS56116823A JP S56116823 A JPS56116823 A JP S56116823A JP 1742880 A JP1742880 A JP 1742880A JP 1742880 A JP1742880 A JP 1742880A JP S56116823 A JPS56116823 A JP S56116823A
Authority
JP
Japan
Prior art keywords
end part
connecting rod
coined
tempered
partially
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
JP1742880A
Other languages
Japanese (ja)
Other versions
JPS5934210B2 (en
Inventor
Hajime Yamashita
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.)
Mazda Motor Corp
Original Assignee
Mazda Motor Corp
Toyo Kogyo 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 Mazda Motor Corp, Toyo Kogyo Co Ltd filed Critical Mazda Motor Corp
Priority to JP55017428A priority Critical patent/JPS5934210B2/en
Publication of JPS56116823A publication Critical patent/JPS56116823A/en
Publication of JPS5934210B2 publication Critical patent/JPS5934210B2/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
    • F16C7/02—Constructions of connecting-rods with constant length
    • F16C7/023—Constructions of connecting-rods with constant length for piston engines, pumps or the like

Landscapes

  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

PURPOSE: To improve a fatigue strength of a connecting rod, by partially tempering a coined end part and a near end part of a communicating stem of a connecting rod after coined.
CONSTITUTION: A steel piece is forged to form a connecting rod material A0. The forged material is then quenched, tempered and further with a coil rolled. The periphery of a coined end part 3a of the material A0 is surrounded with a coil 7, and heated by a high-frequency energ. Thus, the end part is partially tempered. The partial tempering may be done also by flame heating or the like. The partially tempered part is surface hardened by shot peening. Consequently, there is no stretched residual stress at the coined end part 39 of the communicating stem 3, and a uniform compression residual stress is generated over the whole surface.
COPYRIGHT: (C)1981,JPO&Japio
JP55017428A 1980-02-14 1980-02-14 Manufacturing method of connecting rod Expired JPS5934210B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55017428A JPS5934210B2 (en) 1980-02-14 1980-02-14 Manufacturing method of connecting rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55017428A JPS5934210B2 (en) 1980-02-14 1980-02-14 Manufacturing method of connecting rod

Publications (2)

Publication Number Publication Date
JPS56116823A true JPS56116823A (en) 1981-09-12
JPS5934210B2 JPS5934210B2 (en) 1984-08-21

Family

ID=11943737

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55017428A Expired JPS5934210B2 (en) 1980-02-14 1980-02-14 Manufacturing method of connecting rod

Country Status (1)

Country Link
JP (1) JPS5934210B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02149617A (en) * 1988-11-29 1990-06-08 Mazda Motor Corp Manufacture of ferrous member
JP2006144928A (en) * 2004-11-19 2006-06-08 Yamaha Motor Co Ltd Connecting rod, engine, automobile and connecting rod manufacturing method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996040469A1 (en) * 1995-06-07 1996-12-19 Myers Martin R Method of making connecting rod

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02149617A (en) * 1988-11-29 1990-06-08 Mazda Motor Corp Manufacture of ferrous member
JP2006144928A (en) * 2004-11-19 2006-06-08 Yamaha Motor Co Ltd Connecting rod, engine, automobile and connecting rod manufacturing method

Also Published As

Publication number Publication date
JPS5934210B2 (en) 1984-08-21

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