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Automotive Transmission Design Using Full Potential of Powder Metal - August 2013

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Archive > 2013 > August 2013 > Automotive Transmission Design Using Full Potential of Powder Metal

The article "Automotive Transmission Design Using Full Potential of Powder Metal" appeared in the August 2013 issue of Gear Technology.

Summary
For metal replacement with powder metal (PM) of an automotive transmission, PM gear design differs from its wrought counterpart. Indeed, complete reverse-engineering and re-design is required so to better understand and document the performance parameters of solid-steel vs. PM gears. Presented here is a re-design (re-building a 6-speed manual transmission for an Opel Insignia 4-cylinder, turbocharged 2-liter engine delivering 220 hp/320 N-m) showing that substituting a different microgeometry of the PM gear teeth -- coupled with lower Young’s modulus -- theoretically enhances performance when compared to the solid-steel design.

Keywords
PM, powder metal, automotive gears, design

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