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GB1430287A - Shaving gears during mar-tempering - Google Patents

Shaving gears during mar-tempering

Info

Publication number
GB1430287A
GB1430287A GB4953473A GB4953473A GB1430287A GB 1430287 A GB1430287 A GB 1430287A GB 4953473 A GB4953473 A GB 4953473A GB 4953473 A GB4953473 A GB 4953473A GB 1430287 A GB1430287 A GB 1430287A
Authority
GB
United Kingdom
Prior art keywords
gear
temperature
shaving
shaved
approximately
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.)
Expired
Application number
GB4953473A
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.)
Lear Siegler Inc
Original Assignee
Lear Siegler Inc
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 Lear Siegler Inc filed Critical Lear Siegler Inc
Publication of GB1430287A publication Critical patent/GB1430287A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/32—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for gear wheels, worm wheels, or the like
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
    • C21D1/22—Martempering

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Gear Processing (AREA)
  • Gears, Cams (AREA)

Abstract

1430287 Making gears; gear cutting LEAR SIEGLER Inc 24 Oct 1973 [20 Dec 1972] 49534/73 Headings B3A and B3K A method of producing hardened gears comprises forming a gear from hardenable steel to approximately its final form, bringing the gear to austenitizing temperature, quenching the gear to a uniform temperature throughout within a temperature range for martempering, shaving the gear at a temperature within the range, and allowing the shaved gear to cool slowly to room temperature. The formed gear is rough machined to approximately its final desired form and after heating to approximately 1550‹ F. is quenched to between 400‹ and 450‹ F in an oil bath or above 450‹ F. in a salt bath and is shaved in a conventional crossed axes gear shaving operation. The shaving cutter used may be maintained at an elevated temperature to eliminate hardening, e.g. at least half the temperature of the gear. The shaved gear may be tempered at 300-350‹ F. and then cooled. The shaving cutter has its teeth formed at a different helix angle from that of the gear, preferably between 3 and 30 degrees. This produces a sliding motion between the contacting surface portions of the gear and cutter which is compounded with involute slide of a conventional shaving operation.
GB4953473A 1972-12-20 1973-10-24 Shaving gears during mar-tempering Expired GB1430287A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US31674772A 1972-12-20 1972-12-20

Publications (1)

Publication Number Publication Date
GB1430287A true GB1430287A (en) 1976-03-31

Family

ID=23230485

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4953473A Expired GB1430287A (en) 1972-12-20 1973-10-24 Shaving gears during mar-tempering

Country Status (6)

Country Link
JP (1) JPS5551687B2 (en)
CA (1) CA996009A (en)
DE (1) DE2362977C2 (en)
FR (1) FR2211530B3 (en)
GB (1) GB1430287A (en)
IT (1) IT994760B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104439992A (en) * 2014-11-19 2015-03-25 柳州科尔特锻造机械有限公司 Drive bevel gear machining method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4077812A (en) * 1975-03-25 1978-03-07 Ntn Toyo Bearing Co. Ltd. Method of working steel machine parts including machining during quench cooling
DE19738487A1 (en) * 1997-09-04 1999-03-11 Asea Brown Boveri Method of manufacturing a gear wheel
JP6150746B2 (en) * 2014-02-26 2017-06-21 株式会社ハーモニック・ドライブ・システムズ Flexible external gear of wave gear device and manufacturing method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104439992A (en) * 2014-11-19 2015-03-25 柳州科尔特锻造机械有限公司 Drive bevel gear machining method

Also Published As

Publication number Publication date
FR2211530A1 (en) 1974-07-19
JPS4990620A (en) 1974-08-29
JPS5551687B2 (en) 1980-12-25
CA996009A (en) 1976-08-31
DE2362977C2 (en) 1982-08-26
IT994760B (en) 1975-10-20
DE2362977A1 (en) 1974-06-27
FR2211530B3 (en) 1976-08-27

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee