Residual stress measurement method based on femtosecond laser processing
A technology of femtosecond laser processing and residual stress, applied in the direction of force/torque/work measuring instruments, measuring devices, laser welding equipment, etc., can solve problems such as uncertainty, affecting the measurement accuracy of residual stress, and affecting material properties The influence of thermal effect is small, the effect of avoiding additional mechanical stress and avoiding direct contact
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[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments.
[0030] Such as figure 1 As shown, the residual stress measurement method based on femtosecond laser processing described in this embodiment, arranging a measurement system for femtosecond laser processing, includes the following steps:
[0031] S100. Grinding the part of the sample to be tested to ensure a smooth surface;
[0032] S200. Apply a layer of adhesive on the bottom surface of the strain gauge and scrape it flat. Immediately align the sample to be tested, place the bottom of the strain gauge downward on the sample, and press lightly to ma...
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