Study of powder sintering-compaction by a micromechanics model

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The sintering-compaction process is one of the important methods of Ti-Al alloy component manufacturing. It is essential to obtain a thorough understanding of the mechanics involved in the process, such as the load-compaction relationship, void evolution, residual stress and plastic deformation. A unit cell micromechanics approach is used in this study to investigate the load-compaction relationship for various materials under different temperatures. The friction effect is evaluated and void evolution is observed. A formula based on the principle of soil mechanics is developed to describe the phenomenological pressure-compaction responses of materials during the sintering-compaction process. © IMechE 1997.

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Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture