(北京科技大學(xué) 材料科學(xué)與工程學(xué)院 新金屬材料國(guó)家重點(diǎn)實(shí)驗(yàn)室，北京 100083)
摘 要:
研究電解銅粉高速壓制成形工藝，探討沖擊能量、壓制次數(shù)對(duì)生坯密度、最大沖擊力和脫模力的影響。結(jié)果表明：當(dāng)沖擊能量為6 076 J時(shí)，試樣的生坯密度達(dá)到最大，為
關(guān)鍵字: 電解銅粉；高速壓制；生坯密度；沖擊力；脫模力
（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
