MODELING AND STUDY OF LASER CUTTING OF SOFT STEEL IN INDUSTRIAL PARTS MANUFACTURING

Abstract

Soft steels are used in the processing and fabrication of parts due to corrosion and wear resistance. In the manufacturing technology of these products, a circular cutting experiment was designed where disks were obtained at various values of the laser input parameters, cutting speed, gas pressure, laser power, focal position. The present study is based on the circular cutting of the parts made of OL 37 material. The measurements of the discs indicate different and close values from one reference to another, respectively the conicity of the made parts. It is proposed to treat the theoretical aspects related to the stationary and dynamic piercing speed of the laser, the geometry of the piece, the geometric flexibility in determining the deviation from the circularity, the simulation of the addition of melting x depending on the melting angle α, of the geometry of the molten front of the laser leaving from the tip of the laser spot. The method of determining the laser speed in the cutting process is calculated and discussed, the deviation from the circularity, the angle of deviation, the problem of variation of the deviation x from the rectangular dimensional accuracy of the slit due to the laser laser CO2 melting.

Keywords

• laser cutting
• laser cutting parameters
• co2 laser
• laser melting
• circular laser cutting
• laser piercing