FR2175075A1 - Gear wheel teeth strengthening - by plastic deformation in direction of operational load after equalizing trea ment - Google Patents

Gear wheel teeth strengthening - by plastic deformation in direction of operational load after equalizing trea ment

Info

Publication number
FR2175075A1
FR2175075A1 FR7307940A FR7307940A FR2175075A1 FR 2175075 A1 FR2175075 A1 FR 2175075A1 FR 7307940 A FR7307940 A FR 7307940A FR 7307940 A FR7307940 A FR 7307940A FR 2175075 A1 FR2175075 A1 FR 2175075A1
Authority
FR
France
Prior art keywords
plastic deformation
equalizing
operational load
gear wheel
wheel teeth
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
FR7307940A
Other languages
French (fr)
Other versions
FR2175075B1 (en
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.)
ROSTOVSKY KRASN
Original Assignee
ROSTOVSKY KRASN
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
Priority claimed from SU1755271A external-priority patent/SU515812A1/en
Application filed by ROSTOVSKY KRASN filed Critical ROSTOVSKY KRASN
Publication of FR2175075A1 publication Critical patent/FR2175075A1/en
Application granted granted Critical
Publication of FR2175075B1 publication Critical patent/FR2175075B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H5/00—Making gear wheels, racks, spline shafts or worms
    • B21H5/02—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls
    • B21H5/022—Finishing gear teeth with cylindrical outline, e.g. burnishing
    • 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
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/22—Hardness

Landscapes

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

Abstract

The teeth of gear wheels are strengthened by subjecting them to a plastic deformation by bending them in the direction of the principal operational load moment. Prior to bending the flanks of the teeth receive a heat treatment such that the hardness of the face of each tooth in the transition zone of hardened layer and cold-worked layer changes uniformly in the direction of the tooth height.
FR7307940A 1972-03-07 1973-03-06 Gear wheel teeth strengthening - by plastic deformation in direction of operational load after equalizing trea ment Granted FR2175075A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SU1754171 1972-03-07
SU1755271A SU515812A1 (en) 1972-03-10 1972-03-10 Method of thermomechanical processing of parts

Publications (2)

Publication Number Publication Date
FR2175075A1 true FR2175075A1 (en) 1973-10-19
FR2175075B1 FR2175075B1 (en) 1976-11-05

Family

ID=26665458

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7307940A Granted FR2175075A1 (en) 1972-03-07 1973-03-06 Gear wheel teeth strengthening - by plastic deformation in direction of operational load after equalizing trea ment

Country Status (4)

Country Link
CS (1) CS169501B1 (en)
DD (1) DD103015A1 (en)
FR (1) FR2175075A1 (en)
HU (1) HU170497B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2461550A1 (en) * 1979-06-02 1981-02-06 Rostovsky G Univers Strength increasing process for gear-teeth - uses roller to provide plastic deformation of metal at tooth root
FR2486432A1 (en) * 1980-07-09 1982-01-15 Uddeholms Ab METHOD FOR REDUCING CRACKING TRENDS BASED ON SAW TEETH
US4578984A (en) * 1984-03-05 1986-04-01 Uddeholm Strip Steel Aktiebolag Machine for deforming the gullets of saw blades to improve resistance to fatigue stress
WO1999022890A1 (en) * 1997-10-30 1999-05-14 Miba Sintermetall Aktiengesellschaft Method and device for producing a toothed wheel
CN108472775A (en) * 2015-12-31 2018-08-31 李光熙 Gear manufacture method and the gear manufactured by the manufacturing method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR514362A (en) * 1918-09-12 1921-03-09 Fleury & Labruyere De Mechanical treatment intended to increase the elastic limit to compression of a metal such as aluminum and alloys in general

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR514362A (en) * 1918-09-12 1921-03-09 Fleury & Labruyere De Mechanical treatment intended to increase the elastic limit to compression of a metal such as aluminum and alloys in general

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2461550A1 (en) * 1979-06-02 1981-02-06 Rostovsky G Univers Strength increasing process for gear-teeth - uses roller to provide plastic deformation of metal at tooth root
FR2486432A1 (en) * 1980-07-09 1982-01-15 Uddeholms Ab METHOD FOR REDUCING CRACKING TRENDS BASED ON SAW TEETH
US4578984A (en) * 1984-03-05 1986-04-01 Uddeholm Strip Steel Aktiebolag Machine for deforming the gullets of saw blades to improve resistance to fatigue stress
US6357272B1 (en) 1997-10-27 2002-03-19 Miba Sintermetall Aktiengesellschaft Method and device for producing a toothed wheel
WO1999022890A1 (en) * 1997-10-30 1999-05-14 Miba Sintermetall Aktiengesellschaft Method and device for producing a toothed wheel
CN108472775A (en) * 2015-12-31 2018-08-31 李光熙 Gear manufacture method and the gear manufactured by the manufacturing method
EP3398710A4 (en) * 2015-12-31 2019-07-24 Kwang Hui Lee Method for manufacturing gear and gear manufactured by same method
US11052451B2 (en) 2015-12-31 2021-07-06 Kwang Hui LEE Gear manufacturing method and gear manufactured thereby

Also Published As

Publication number Publication date
DE2310913A1 (en) 1973-09-20
FR2175075B1 (en) 1976-11-05
DD103015A1 (en) 1974-01-05
DE2310913B2 (en) 1975-10-23
HU170497B (en) 1977-06-28
CS169501B1 (en) 1976-07-29

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Legal Events

Date Code Title Description
ST Notification of lapse