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WO2008016921A3 - Connecting rod with localized machinable zones - Google Patents

Connecting rod with localized machinable zones Download PDF

Info

Publication number
WO2008016921A3
WO2008016921A3 PCT/US2007/074857 US2007074857W WO2008016921A3 WO 2008016921 A3 WO2008016921 A3 WO 2008016921A3 US 2007074857 W US2007074857 W US 2007074857W WO 2008016921 A3 WO2008016921 A3 WO 2008016921A3
Authority
WO
WIPO (PCT)
Prior art keywords
zones
machinable
connecting rod
localized
crank
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.)
Ceased
Application number
PCT/US2007/074857
Other languages
French (fr)
Other versions
WO2008016921A2 (en
Inventor
Richard P Mccorry
Timothy E Geiman
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.)
GKN Sinter Metals LLC
Original Assignee
GKN Sinter Metals LLC
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 GKN Sinter Metals LLC filed Critical GKN Sinter Metals LLC
Publication of WO2008016921A2 publication Critical patent/WO2008016921A2/en
Publication of WO2008016921A3 publication Critical patent/WO2008016921A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/008—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of engine cylinder parts or of piston parts other than piston rings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/003—Articles made for being fractured or separated into parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • B22F2003/245—Making recesses, grooves etc on the surface by removing material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Composite Materials (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

A sintered powder metal connecting rod has (i) a central beam section, a piston end, and a crank end made of one powder metal material of a relatively high strength, and (ii) zones of the connecting rod that are machined during manufacture, such as the piston bore, the crank bore, and the bores for the crank end cap bolts, made of one or more powdered metal materials that are more machinable. The powdered metal materials of the machined zones may be made more machinable by, for example, the use of different chemical compositions, different sintered densities, and/or different sintered hardness values in the zones.
PCT/US2007/074857 2006-08-02 2007-07-31 Connecting rod with localized machinable zones Ceased WO2008016921A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US83503406P 2006-08-02 2006-08-02
US60/835,034 2006-08-02

Publications (2)

Publication Number Publication Date
WO2008016921A2 WO2008016921A2 (en) 2008-02-07
WO2008016921A3 true WO2008016921A3 (en) 2008-12-04

Family

ID=38997807

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/074857 Ceased WO2008016921A2 (en) 2006-08-02 2007-07-31 Connecting rod with localized machinable zones

Country Status (1)

Country Link
WO (1) WO2008016921A2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5666637A (en) * 1995-11-09 1997-09-09 Nissan Motor Co., Ltd. Method of manufacturing connecting rod
US20050262962A1 (en) * 2004-05-27 2005-12-01 Cagney John L Non-homogeneous engine component formed by powder metallurgy

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5666637A (en) * 1995-11-09 1997-09-09 Nissan Motor Co., Ltd. Method of manufacturing connecting rod
US20050262962A1 (en) * 2004-05-27 2005-12-01 Cagney John L Non-homogeneous engine component formed by powder metallurgy

Also Published As

Publication number Publication date
WO2008016921A2 (en) 2008-02-07

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