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Warm compaction powder metallurgy of Cu NGAI Tungwai Leo(倪东惠), WANG Shang-lin(王尚林), LI Yuan-yuan(李元元), ZHOU Zhao-yao(周照耀), CHEN Wei-ping(陈维平) (Guangdong Key Laboratory for Advanced Metallic... contents, different compaction pressures and temperatures in order to study the warm compaction of copper powder. Results show that too much admixed lubricant will lead to the squeeze out......
Effects of lubricant’s friction coefficient on warm compaction powder metallurgy LI Yuan-yuan(李元元), NGAI Tungwai Leo(倪东惠), WANG Shang-lin(王尚林), ZHU Min(朱 敏), CHEN Wei-ping(陈维平) (College of Mechanical Engineering, South China University of Technology, Guangzhou 510640, China) Abstract: The correct use of lubricant is the key of warm compaction powder metallurgy. Different lubricants......
DYNAMIC COMPACTION OF PURE COPPER POWDER USING PULSED MAGNETIC FORCE H.P. Yu1,C. F. Li1 (1.National Key Laboratory for Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin 150001, China) Abstract:The compaction of pure Cu powder was carried out through a series of experiments using dynamic magnetic pulse compaction, and the effects of process parameters, such as discharge......
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Numerical simulation in powder compaction of metallurgy component HUANG Chun-man(黄春曼), CHEN Pu-qing(陈普庆), SHAO Ming(邵 明), LI Yuan-yuan(李元元) College of Mechanical Engineering, South China.... And the results indicate that the density distribution is homogenous after optimization. Key words: powder compaction; design distribution; numerical simulation1 Introduction Forming multi-level component......
; Abstract: Warm compaction process of pure iron powder was investigated. Due to the existence of elastic, plastic and thermal strains, a coupled mechanical and thermal model... into the constitutive integral arithmetic and solved employing incremental iterative solution strategy. The yield strength of iron powder was obtained according to the tensile experiments. When the compaction......
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Numerical modeling and simulation of metal powder compaction of balancer LI Yuan-yuan(李元元), CHEN Pu-qing(陈普庆), XIA Wei(夏 伟), ZHOU Zhao-yao(周照耀), LI Wen-fang(李文芳) College of Mechanical... and compared. The simulation results indicate the influence of punch position and movement on the density distribution of the green compacts. Key words: balancer; powder compaction; numerical simulation; finite......
dimples on the whole fracture surface. Key words: warm compaction; die wall lubrication; powder metallurgy; mechanical properties _________________________________________________________ 1 Introduction... compaction is an interesting avenue to achieve high green densities at a lower cost compared to DP/DS and powder forging[4-6]. Warm compaction is the process during which mixed iron/steel powders......