JPS6434615A - Manufacture of rotor - Google Patents

Manufacture of rotor

Info

Publication number
JPS6434615A
JPS6434615A JP18606087A JP18606087A JPS6434615A JP S6434615 A JPS6434615 A JP S6434615A JP 18606087 A JP18606087 A JP 18606087A JP 18606087 A JP18606087 A JP 18606087A JP S6434615 A JPS6434615 A JP S6434615A
Authority
JP
Japan
Prior art keywords
austempering
crankshaft
approximately
drill
small bores
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
JP18606087A
Other languages
Japanese (ja)
Inventor
Tomomi Shinoda
Tadashi Oumoto
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
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 filed Critical Mazda Motor Corp
Priority to JP18606087A priority Critical patent/JPS6434615A/en
Publication of JPS6434615A publication Critical patent/JPS6434615A/en
Pending legal-status Critical Current

Links

Landscapes

  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

PURPOSE:To ensure an extremely easy balancing process for a crankshaft and the like by punching preliminarily small bores on the balancing processing part thereof before the application of austempering treatment and drilling the small bores after the austempering treatment. CONSTITUTION:Before austempering, small bores 4, 4 and so forth are punched on each balance weight part 3. Thereafter, austempering applies and a crankshaft A is heated and retained at a temperature of approximately 900 deg.C for one hour or so, then quenched to approximately 300 deg.C to 400 deg.C in a salt bath and retained for approximately one to two hours. After the austempering treatment applies, the balancing process of the cooled crankshaft A is carried out with the small bores 4, 4 and so forth punched on the balance weight 3, using a drill 5 of diameter larger than the bore 4. As a result, the chisel part 5a of the drill 5 is almost free from cutting resistance, thereby making a drill wear small and ensuring an extremely easy balancing process.
JP18606087A 1987-07-24 1987-07-24 Manufacture of rotor Pending JPS6434615A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18606087A JPS6434615A (en) 1987-07-24 1987-07-24 Manufacture of rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18606087A JPS6434615A (en) 1987-07-24 1987-07-24 Manufacture of rotor

Publications (1)

Publication Number Publication Date
JPS6434615A true JPS6434615A (en) 1989-02-06

Family

ID=16181688

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18606087A Pending JPS6434615A (en) 1987-07-24 1987-07-24 Manufacture of rotor

Country Status (1)

Country Link
JP (1) JPS6434615A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6698095B1 (en) * 1999-08-02 2004-03-02 Renault Automation Comau Method for machining a crankshaft with original arrangement of the balancing operation and implementing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6698095B1 (en) * 1999-08-02 2004-03-02 Renault Automation Comau Method for machining a crankshaft with original arrangement of the balancing operation and implementing device

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