METHOD AND APPARATUS FOR IMPROVEMENT OF INVOLUTE AND LEAD ERROR IN POWDER METAL GEARS

METHOD AND APPARATUS FOR IMPROVEMENT OF INVOLUTE AND LEAD ERROR IN POWDER METAL GEARS

Gears, particularly spur gears, are produced by powder metal techniques with minimal lead line error and eccentricity, which gears are preformed from powder metal, sintered, hardened and thereafter have their involute surfaces regenerated by a hard hob with a negative rake on the hob teeth to provid...

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Bibliographische Detailangaben
Hauptverfasser: GRAUPNER, SCOTT D, HAYE, STEVEN T, ENGQUIST, JOHN
Format: Patent
Sprache:eng ; fre
Schlagworte:
CASTING
MAKING METALLIC POWDER
MANUFACTURE OF ARTICLES FROM METALLIC POWDER
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:Gears, particularly spur gears, are produced by powder metal techniques with minimal lead line error and eccentricity, which gears are preformed from powder metal, sintered, hardened and thereafter have their involute surfaces regenerated by a hard hob with a negative rake on the hob teeth to provide gears having aligned involute surfaces between adjacent gea r teeth and, between each gear tooth and the gear center line.