한국분말야금학회:학술대회논문집 (Proceedings of the Korean Powder Metallurgy Institute Conference)
- 한국분말야금학회 2006년도 Extended Abstracts of 2006 POWDER METALLURGY World Congress Part2
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- Pages.1296-1297
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- 2006
Shearing Properties of Hard Metal Powder and Iron Powder in the Low Density Range
- Jonsen, P. (Division of Solid Mechanics, Lulea University of Technology) ;
- Haggblad, H.A. (Division of Solid Mechanics, Lulea University of Technology)
- 발행 : 2006.09.24
초록
Both plastic and elastic properties change dramatically from the beginning to the end of the compaction phase. Previous investigations have shown that powder transfer and high powder flow during initial compaction at low density affects the strength of the final component significantly. Investigated here are shear failure and elastic shear modulus in the low density range for hard metal powder and for pre-alloyed water atomized iron powder. Direct shear test equipment for sand and clay has been modified to measure the shearing properties of powder for an axial loading between 1 kPa and 500 kPa.