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New ECM Furnace Improves Manufacture Efficiency of PM Components - March/April 2014

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Archive > 2014 > March/April 2014 > New ECM Furnace Improves Manufacture Efficiency of PM Components

The article "New ECM Furnace Improves Manufacture Efficiency of PM Components" appeared in the March/April 2014 issue of Gear Technology.

Summary
The heat treatment processing of powder metal (PM) materials like Astaloy requires four steps -- de-waxing, HT sintering, carburizing and surface hardening -- which are usually achieved in dedicated, atmospheric furnaces for sintering and heat treat, respectively, leading to intermediate handling operations and repeated heating and cooling cycles. This paper presents the concept of the multi-purpose batch vacuum furnace, one that is able to realize all of these steps in one unique cycle. The multiple benefits brought by this technology are summarized here, the main goal being to use this technology to manufacture high-load transmission gears in PM materials.

Keywords
heat treating, powder metal, PM, ECM

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