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laser processing simulation

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   As a comsol multiphysics noob,recently I have been troubled by a problem for several days.

I am setting up a model of laser processing ,initiallyt the track of laser I had set is a circle,later considering the experimental consistency,I need change the laser track to be polyline,however,the definition in the comp1 has a problem, I cannot set the unified expression while select the total model,when I try to add variables to definite the different sides, The calculation show errors.I sincerely seek advice from you great god,please do me a favor~~


0 Replies Last Post May 3, 2019, 7:44 a.m. EDT
COMSOL Moderator

Hello 子辰 李

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