用于重型汽车变速箱的高性能行星齿轮

SAE transactions Pub Date : 2005-11-01 DOI:10.4271/2005-01-3644

U. Engström, L. Fordén, S. Bengtsson, Magnus Bergström

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引用次数: 0

摘要

重型卡车齿轮箱中的行星齿轮通常是通过锻造毛坯、车削、滚刀、剃须和热处理，然后再磨削来制造的。由于齿轮的尺寸，PM方法的净形状能力可以替代传统制造的成本效益。温压实和表面致密化是达到高密度从而获得高强度和高疲劳性能的两种粉末冶金方法。概述了用这些方法制造的粉末冶金齿轮的典型特性。

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High Performance Planetary Gears for Heavy Duty Automotive Transmissions

Planetary gears in heavy truck gearboxes are normally manufactured by forging a blank, turning, hobbing, shaving and heat-treatment followed by grinding. Due to the size of the gear the net shape capability of PM methods can be cost effective alternatively to conventional manufacturing. Warm compaction and surface densification are two PM methods to reach high density and thereby high strength and fatigue properties. Typical characteristics for PM gears manufactured by these methods are outlined.

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SAE transactions

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