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Powdered Metal Gears-Low Cost, Net Shape to AGMA 8

Powder Metallurgy is a misunderstood and under-utilized technology offering outstanding strength and wear characteristics more similar to a wrought piece for costs more similar to a die cast piece. The paper explores how ASCO Sintering Co. is able to apply outstanding design principles, six sigma problem solving methods, automation, and world class non-destructive inspection to deliver gears to multiple industries that are able to meet an AGMA 8 certification. Article Courtesy of ASCO Sintering Co.
www.geartechnology.com/sc/asco-pmgears/

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1 Gear Expo 2017 and ASM Heat Treat 2017 Booth Previews (September/October 2017)

The latest technology on display in Columbus, OH. October 24-26.

2 Powder Metal Magic (August 2012)

Capstan Atlantic, located in Wrentham, Massachusetts, produces powder metal gears, sprockets and complex structural components. The company has provided unique powder metal products in a variety of industries including automotive, business machines, appliances, lawn and garden equipment and recreational vehicles.

3 Suitability of High Density Powder Metal Gears for Gear Applications (January/February 2001)

The implementation of powder metal (PM)components in automotive applications increases continuously, in particular for more highly loaded gear components like synchromesh mechanisms. Porosity and frequently inadequate material properties of PM materials currently rule out PM for automobile gears that are subject to high loads. By increasing the density of the sintered gears, the mechanical properties are improved. New and optimized materials designed to allow the production of high-density PM gears by single sintering may change the situation in the future.

4 PM Design Winners Announced at Powdermet 2011 (June/July 2011)

Design innovation, superior engineering properties, high end-market visibility and sustainability distinguish the winners of the 2011 Design Excellence awards, the annual powder metallurgy (PM) design competition sponsored by the Metal Powder Industries Federation.

5 Powder Metal Gear Design and Inspection (September/October 1996)

Powder metallurgy (P/M) is a precision metal forming technology for the manufacture of parts to net or near-net shape, and it is particularly well-suited to the production of gears. Spur, bevel and helical gears all may be made by made by powder metallurgy processing.

6 New ECM Furnace Improves Manufacture Efficiency of PM Components (March/April 2014)

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.