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FR2201942A1 - Roller bearing rings mfr. - using rolled powder metal, process avoids need for cold hardening step and fracturing of formed blank - Google Patents

Roller bearing rings mfr. - using rolled powder metal, process avoids need for cold hardening step and fracturing of formed blank

Info

Publication number
FR2201942A1
FR2201942A1 FR7235941A FR7235941A FR2201942A1 FR 2201942 A1 FR2201942 A1 FR 2201942A1 FR 7235941 A FR7235941 A FR 7235941A FR 7235941 A FR7235941 A FR 7235941A FR 2201942 A1 FR2201942 A1 FR 2201942A1
Authority
FR
France
Prior art keywords
roller bearing
mfr
fracturing
powder metal
bearing rings
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
FR7235941A
Other languages
French (fr)
Other versions
FR2201942B1 (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.)
Formflo Ltd
Original Assignee
Formflo Ltd
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 Formflo Ltd filed Critical Formflo Ltd
Priority to FR7235941A priority Critical patent/FR2201942A1/en
Publication of FR2201942A1 publication Critical patent/FR2201942A1/en
Application granted granted Critical
Publication of FR2201942B1 publication Critical patent/FR2201942B1/fr
Granted 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
    • B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
    • B22F5/106—Tube or ring forms
    • 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
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/06—Making articles shaped as bodies of revolution rings of restricted axial length
    • B21H1/12—Making articles shaped as bodies of revolution rings of restricted axial length rings for ball or roller bearings
    • 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
    • B22F3/12—Both compacting and sintering
    • B22F3/16—Both compacting and sintering in successive or repeated steps
    • B22F3/164—Partial deformation or calibration
    • 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
    • B22F3/18—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by using pressure rollers
    • 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
    • B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/64—Special methods of manufacture
    • 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
    • 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Powder Metallurgy (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

In the process, a practically cylindrical blank of metal powder is formed by a roller itno the interior or exterior ring of a roller bearing. Before shaping by the roller, the density of the powder metal blank is >=96, pref. ca. 98% of that of the solid metal. The process using metal powder gives very high mechanical resistance in the area of the bearing ring submitted to extremely high loads in use, and gives a highly polished and finished surface.
FR7235941A 1972-10-11 1972-10-11 Roller bearing rings mfr. - using rolled powder metal, process avoids need for cold hardening step and fracturing of formed blank Granted FR2201942A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7235941A FR2201942A1 (en) 1972-10-11 1972-10-11 Roller bearing rings mfr. - using rolled powder metal, process avoids need for cold hardening step and fracturing of formed blank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7235941A FR2201942A1 (en) 1972-10-11 1972-10-11 Roller bearing rings mfr. - using rolled powder metal, process avoids need for cold hardening step and fracturing of formed blank

Publications (2)

Publication Number Publication Date
FR2201942A1 true FR2201942A1 (en) 1974-05-03
FR2201942B1 FR2201942B1 (en) 1977-07-29

Family

ID=9105464

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7235941A Granted FR2201942A1 (en) 1972-10-11 1972-10-11 Roller bearing rings mfr. - using rolled powder metal, process avoids need for cold hardening step and fracturing of formed blank

Country Status (1)

Country Link
FR (1) FR2201942A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2579491A1 (en) * 1985-04-01 1986-10-03 Waelzlager Normteile Veb PROCESS FOR COLD ROLLING WITH RING PROFILING HAVING TANGENTIAL ENLARGEMENT
EP0682999A3 (en) * 1994-05-20 1997-05-07 Ringsdorff Sinter Gmbh Article molded from metal powder and process and apparatus for preparing the same.
WO2002088556A1 (en) * 2001-05-01 2002-11-07 Gkn Sinter Metals, Inc. Surface densification of powder metal bearing caps

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH278691A (en) * 1948-12-04 1951-10-31 Primavesi Davide Process for the production of the rolling bearing parts supporting the raceways.
DE1179720B (en) * 1954-10-21 1964-10-15 Kugelfischer G Schaefer & Co Process for the powder metallurgical production of the components of rolling bearings that absorb the operational loads

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH278691A (en) * 1948-12-04 1951-10-31 Primavesi Davide Process for the production of the rolling bearing parts supporting the raceways.
DE1179720B (en) * 1954-10-21 1964-10-15 Kugelfischer G Schaefer & Co Process for the powder metallurgical production of the components of rolling bearings that absorb the operational loads

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2579491A1 (en) * 1985-04-01 1986-10-03 Waelzlager Normteile Veb PROCESS FOR COLD ROLLING WITH RING PROFILING HAVING TANGENTIAL ENLARGEMENT
EP0682999A3 (en) * 1994-05-20 1997-05-07 Ringsdorff Sinter Gmbh Article molded from metal powder and process and apparatus for preparing the same.
WO2002088556A1 (en) * 2001-05-01 2002-11-07 Gkn Sinter Metals, Inc. Surface densification of powder metal bearing caps
US7168858B2 (en) 2001-05-01 2007-01-30 Gkn Sinter Metals, Inc. Surface densification of powder metal bearing caps
US7987569B2 (en) 2001-05-01 2011-08-02 Gkn Sinter Metals, Llc Method of surface densification of a powder metal component

Also Published As

Publication number Publication date
FR2201942B1 (en) 1977-07-29

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