【摘要】 本文简述了粉末冶金高速压制技术(High Velocity Compaction,简称HVC)的基本原理、主要特点及其研究进展。HVC技术是一项低成本、高效率成形高密度(7.4~7.8 g/cm3)粉末冶金零件的新技术。粉末在0.02 s之内通过高能量冲击进行压制,通过附加间隔为0.3 s的多重冲击波将密度进一步提高。HVC技术拓展了PM成形技术的应用领域,具有广阔的应用前景。更多还原

【Abstract】 The high velocity compaction(HVC)technique in powder metallurgy is described.HVC is a new manufacturing technique,for producing high density(7.4 g/cm~3～7.8 g/cm~3) P/M parts efficiently at low cost.Powder is compacted with-in less than 20 milliseconds by high-energy impacts.Further densification is achieved by multiple impacts at intervals of as short as 300 milliseconds.HVC expands the range of PM forming technique and is expected to have a high potential in the future.更多还原