That is to say, in the laser cutting process, due to the high power density laser beam heating, so the temperature of the ASTM A516 Grade 70 steel plate will gradually be high, until reaching the boiling point temperature, and this process is very fast, so it can avoid the melting caused by heat conduction, so part of the ASTM A516 Grade 70 steel plate material is vaporized into steam.
There is also a process called controlled fracture cutting. This process is usually applied to brittle materials that are vulnerable to damage after ASTM A516 Grade 70 steel plate are heated. In the laser cutting process, through the laser beam heating to the ASTM A516 Grade 70 steel plate for high-speed, controllable cutting, that is, control fracture cutting, at this time the use of the laser beam can guide the crack in any direction of the ASTM A516 Grade 70 steel plate needs to produce.
