选区激光熔化铜合金纳米力学性能实验研究

The experimental research of nano-mechanical property for copper alloy during selective laser melting

摘要:

针对选区激光熔化铜合金成形微观力学性能，采用正交试验设计方法，研究了不同工艺参数(激光功率、扫描速度、扫描间距)对成形样件纳米压痕硬度的影响. 通过方差分析，得出了不同工艺参数对其纳米硬度影响程度，从而为选区激光熔化成形工艺提高零件表面微观力学性能提供理论指导.

Abstract:

In view of the micro-mechanical property of copper alloy fabricated by selective laser melting (SLM), the effects of different processing parameters (laser power, scanning speed and scanning space) on the nanoindentation hardness were researched according to the orthogonal experimental design test method. Based on the analysis of variance, the impact degree of diverse processing parameters on the nanohardness was obtained, which could provide a theoretical direction for improving the micro-mechanical property of parts during SLM.