Study on Model and Experimental of Laser Scribing Parameter of Maskant in Chemical Milling for Aerospace Applications

In order to solve the problems of multiple process parameters, difficult control and high requirements in laser first/second scribing aerospace chemical milling thin-wall parts, a depth model based on thermal energy balance was established, relationship between power speed established with as target. Using AC850 maskant coating material, effects power, speed, frequency, forward angle side slope were studied by single factor experiment. Experimental results show that theoretical is good agreement experimental data. The positively proportional inversely has little frequency. predicted accuracy mathematical equations regarding density depth, calculated depths data, are 88.53% 90.79%. at 6° 7° deeper compared vertical incident also recommended scribing. Based simplified regression model, can be directly used NC system realize adaptive adjustment accurate according actual speed.