探讨了热扩散温度、时间、活化剂、原料铬粉、核心粉材质等对复合粉末性能的影响。
The effects of thermal diffusion temperature and duration, activator, Cr powder used as raw material and core material etc. on the properties of the composite powder were investigated.
而热损伤不仅与激光的波长有关，还与热传导率和热扩散所需时间有关。
And thermal injury not only has something to do with laser's wavelength, but also has something to do with the time of thermal conductivity and thermal proliferation.
当激光器上升沿变陡时，在有效作用时间内温度上升得更快，对加工区域周围热效应的影响明显减弱，而热扩散距离变小。
When the rise time is steeper, the temperature rises faster, and the surrounding of the machining filed are less affected while the distance of the thermal diffusion reduces.
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