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将投影光栅法三维面形测量用于激光烧融坑测量,提出根据激光烧融坑形貌测量求出作用激光的功率密度分布 的方法,并讨论测量方法的可行性。最后,给出根据测量结果预计激光热处理相变硬化带并与实验测量进行比较的实例。
The three-dimensional projection measurement of the projection grating method is used to measure the laser sintering pit. The method of calculating the power density distribution of the laser beam is proposed according to the laser sintering pit topography. The feasibility of the measurement method is also discussed. Finally, an example of predicting the heat-treated phase transformation hardening band based on the measurement results and comparing with the experimental measurement is given.