Residual Stress in Powder Metallurgy Green Compact

Rui Zhou; Lian Hong Zhang; Yu Hong Liu

doi:10.4028/www.scientific.net/AMM.44-47.232

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 44-47Residual Stress in Powder Metallurgy Green Compact

Residual Stress in Powder Metallurgy Green Compact

Abstract:

Residual stress in green compact is an important factor to influence the quality of the compact and corresponding powder metallurgy product. To understand the residual stress, a finite element model is set up to simulate the single and double action pressing, unloading and ejecting of powder compacting process. Results show that compaction type has significant influence on the rule of residual stress state and the double action pressing is more helpful to reduce the risk of cracking than the single action pressing. Also better lubricant condition is beneficial to improve residual stress in the green compact.

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Periodical:

Applied Mechanics and Materials (Volumes 44-47)

Pages:

232-236

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.44-47.232

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Online since:

December 2010

Authors:

Rui Zhou, Lian Hong Zhang, Yu Hong Liu

Keywords:

Compaction, Finite Element Model (FEM), Green Compact, Residual Stress

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