GB1395419A - Strength of materials by heat treatment - Google Patents

Strength of materials by heat treatment

Info

Publication number
GB1395419A
GB1395419A GB3454572A GB3454572A GB1395419A GB 1395419 A GB1395419 A GB 1395419A GB 3454572 A GB3454572 A GB 3454572A GB 3454572 A GB3454572 A GB 3454572A GB 1395419 A GB1395419 A GB 1395419A
Authority
GB
United Kingdom
Prior art keywords
hardening
contour
strength
materials
heat treatment
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
GB3454572A
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.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
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 Daimler Benz AG filed Critical Daimler Benz AG
Publication of GB1395419A publication Critical patent/GB1395419A/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
    • F16C3/00—Shafts; Axles; Cranks; Eccentrics
    • F16C3/02—Shafts; Axles
    • 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
    • C21D9/30—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for crankshafts; for camshafts

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Ocean & Marine Engineering (AREA)
  • Thermal Sciences (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

1395419 Heat-treating crank-shafts DAIMLER-BENZ AG 24 July 1972 [2 Aug 1971] 34545/72 Heading C7N A component having axial portions 4 connected to shoulders 2 by a radiussed transitional regions 3, and which is to be straightened after hardening, is locally hardened so that the axial portion has a hardened zone 1 of uniform depth which extends over at least half the transitional region before reducing to zero at a location beyond that region. The intensity of hardening is shown by contour 6. In the modification of Fig.3 a double hardening operation is employed, the tempering effect of the second one modifying the initial hardness contour 11' into the final form 11.
GB3454572A 1971-08-02 1972-07-24 Strength of materials by heat treatment Expired GB1395419A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712138599 DE2138599C2 (en) 1971-08-02 1971-08-02 Process for surface hardening of crankshafts for motor vehicles

Publications (1)

Publication Number Publication Date
GB1395419A true GB1395419A (en) 1975-05-29

Family

ID=5815535

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3454572A Expired GB1395419A (en) 1971-08-02 1972-07-24 Strength of materials by heat treatment

Country Status (3)

Country Link
DE (1) DE2138599C2 (en)
FR (1) FR2148188B1 (en)
GB (1) GB1395419A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2500823C2 (en) * 1975-01-10 1986-02-20 Teves-Thompson Gmbh, 3013 Barsinghausen Method and device for surface induction hardening
DE3916421C1 (en) * 1989-05-19 1990-08-30 Man Nutzfahrzeuge Ag, 8000 Muenchen, De
DE3939935A1 (en) * 1989-12-02 1991-06-06 Man Nutzfahrzeuge Ag Producing crank shafts - by machining simultaneously moving surface, side face, and recesses between surface and faces followed by hardening and final grinding
DE10261710B4 (en) * 2002-12-30 2011-07-21 Volkswagen AG, 38440 Process for surface treatment of a shaft
DE102007061026B4 (en) * 2007-12-18 2015-11-26 Audi Ag Method for producing a crankshaft, and crankshaft
US10161014B2 (en) 2016-01-08 2018-12-25 Ford Motor Company Laser hardened crankshaft

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1583329B1 (en) * 1967-10-06 1970-08-27 Aeg Elotherm Gmbh Method and device for increasing the torsional fatigue strength of inductively hardened crankshafts

Also Published As

Publication number Publication date
FR2148188A1 (en) 1973-03-11
DE2138599C2 (en) 1983-02-03
FR2148188B1 (en) 1974-07-12
DE2138599A1 (en) 1973-02-15

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Legal Events

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