期刊论文

中文

热加工工艺

1001-3814

2005

3

50-51

10.3969/j.issn.1001-3814.2005.03.020

湖南省省级科技基金资助项目（02GKY3013）；

本校为其他机构

研究了矩形(5 mm×4 mm)激光束工艺参数(功率密度W和扫描速度v)对QT600-3材料激光淬火淬硬层深度及淬硬层硬度分布的影响.结果表明,在W=4.5～5.5 kW/cm2、v=4～5 mm/s时,其淬硬层内硬度分布基本均匀,平均硬度值达920 HV,达到基体硬度的2.3倍左右;硬化层深度达0.5 mm左右.

The influence of laser rectangle beam(5mm×4mm), technique parameter laser power(W), scanning speed(v) on hardened depth and it′s surface-hardness distribution of QT600-3 material laser quenching were studied. The results show that when W=4.5~5.5kW/cm~2,v=4~5mm/s,the surface-hardness distribution is even,and the average misro-hardeness of QT600-3 can reach 950HV,which is about 2.3 times as high as that of norm...