Research Control Factors About Quality And Countermeasure Of Using Yag Laser Drilling Microhole

Laser drilling is one of the earliest applied laser machining. It has many advantages, such as the high accuracy, the good commonality, the high efficiency and low cost.This thesis is based on the interaction mechanism between laser and material, studies the principle of laser drilling, and has a simulation of laser drilling on carbon steel and stainless steel by ANSYS, which is prepared for optimizing procedure parameters. The test material include carbon steel:Q235A,20#,35#,45#,40Cr, T10and stainless steel:00Cr25Ni20, Cr12. According punching in carbon steel and stainless steel material which are in different thichness on YAG laser machining machine, I have analysised the affection about bore diameter and conical degree by laser power, pulse width, impulse frequency, focussed diameter of the beam, assistant gas and so on, compared the simulation value and test value, proved the feasibility of simulation, and presented the selection method about procedure parameters in laser drilling. The tests are proceeded by twofactor no repeat test theory and orthogonal no interaction test theory. According which, I can analysis the affection degree about laser drilling quality caused by laser power, impulse width, and impulse frequency. And because the results are matched with the test results, I can get the result:the two kinds of test theories are good for optimizing procedure parameters.