Waviness measurement system for implementing in laser destructuring by remelting of metal surfaces

Abstract

To increase the efficiency of laser destructuring, data on the waviness of the part associated with the coordinate system of the laser processing machine are required. At present, there are no non-contact profile measurement systems on the market that meet all the requirements that apply to a system for measuring the surface profile of parts and are determined by the parameters of the laser destructuring. The developed measurement system will allow to take waviness measurement directly at the laser processing machine, which will significantly reduce the complexity of the process. A prototype of a system for measuring the surface profile (waviness) has been created inaccordance with the measurement requirements for a laser processing machine. The scheme and principle of operation of the system for measuring the waviness of the installation for laser destructuring are described. In measurements, the triangulation method was used. A prototype allows to measure the profile of the of the surface waviness with a spatial wavelength of 2 mm with an accuracy of 3,78 μm in the vertical direction and 13,8 μm in the lateral direction. The accuracy of the prototype was verified using the standard method of stylus profilometry. The waviness profile obtained with a developed system can be used to modulate the amplitude of the laser radiation power in the laser destructuring.