Die forging process for spiral bevel gears - uses modified tooth geometry to allow simple extraction of gear forging from one-piece die

The geometrical conditions needed to allow bevel-, hypoid-, or hyperboloid gears, are described. The method is esp. for pinions with small bevel angle, to be produced by forging in a one piece die. If the necessary geometric conditions are applied to the tooth profile the forging can be simply remov...

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Bibliographische Detailangaben
Hauptverfasser:	ELSNER, WOLFRAM LOTHAR., 7000 STUTTGART, DE, LANGENBECK, KONRAD HEINRICH, DR.., 7016 GERLINGEN, DE
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	COMBINED OPERATIONS MACHINE TOOLS MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS MAKING GEARS OR TOOTHED RACKS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METAL-WORKING NOT OTHERWISE PROVIDED FOR OTHER WORKING OF METAL PERFORMING OPERATIONS PUNCHING METAL TRANSPORTING UNIVERSAL MACHINE TOOLS
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Beschreibung
Zusammenfassung:	The geometrical conditions needed to allow bevel-, hypoid-, or hyperboloid gears, are described. The method is esp. for pinions with small bevel angle, to be produced by forging in a one piece die. If the necessary geometric conditions are applied to the tooth profile the forging can be simply removed from the die with a screw motion of constant lead. A master gear of the required tooth geometry can be produced by conventional machining and then used to produce the die, by e.g. spark erosion. USE/ADVANTAGE - The production economies of forming in a simple one piece die can be realised.