(北京科技大学 材料科学与工程学院 新金属材料国家重点实验室，北京 100083)
摘 要:
研究电解铜粉高速压制成形工艺，探讨冲击能量、压制次数对生坯密度、最大冲击力和脱模力的影响。结果表明：当冲击能量为6 076 J时，试样的生坯密度达到最大，为
关键字: 电解铜粉；高速压制；生坯密度；冲击力；脱模力
（State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China）
Abstract:The high velocity compacting process of electrolytic copper powder was studied. The effects of impact energy and impact times on the green density, the maximal impact force and the withdraw force of specimen were investigated. The results indicate that the maximum of green density is 8.42 g/cm3 and its relative density is about 95% when the impact energy is 6 076 J. The green density of specimen fabricated by two impacts is better and the withdraw force is lower than that of specimen fabricated by single impact when the whole impact energy is identical. During the compaction the maximal impact force is increased with impact energy increasing, while the withdraw force is lower and changes between 45 kN and 90 kN.
Key words: electrolytic copper powder; high velocity compaction; green density; maximal impact force; withdraw force
