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Home » Comparison of Surface Durability & Dynamic Performance of Powder Metal & Steel Gears

Comparison of Surface Durability & Dynamic Performance of Powder Metal & Steel Gears

September 1, 1995
Surface-hardened, sintered powder metal gears are increasingly used in power transmissions to reduce the cost of gear production. One important problem is how to design with surface durability, given the porous nature of sintered gears. Many articles have been written about mechanical characteristics, such as tensile and bending strength, of sintered materials, and it is well-known that the pores existing on and below their surfaces affect their characteristics (Refs. 1-3). Power transmission gears are frequently employed under conditions of high speed and high load, and tooth surfaces are in contact with each other under a sliding-rolling contact condition. Therefore it is necessary to consider not only their mechanical, but also their tribological characteristics when designing sintered gears for surface durability.
Design Manufacturing Fatigue Processes Powder Metal Technical
KEYWORDS failure fatigue materials P/M powder metal sintered gears steel
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