Specialty Automotive Gears
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Manufacturers typically use alloy steels like nickel-chromium-molybdenum alloys such as 4340 or 4140 to make transmission shafts. These alloy steels are cost-effective and provide a good steadiness of power and toughness required for the application. More importantly, metal transmission shafts are appropriate with heat treatment processes to enhance energy and hardness. From a materials perspective, metal AM has been dominated by titanium alloys, nickel and cobalt-based superalloys, and stainless steels. Lack of familiar gear steels is among the elements that has limited the adoption of AM in the power transmission industry. But some of the steels normally used for gear …