Processing principle of portable laser marking machine

The function of the shielding gas of various metal laser welding machines is to surround the welding pool to prevent its oxidation, and to appropriately accelerate the cooling of the weld to reduce the width of the heat-affected zone of the weld. The differences in the physical properties, thermal conductivity, and solubility of the shielding gas in water have different effects on the welding quality. The denser gas can still be better around the weldment at high temperature to prevent the weldment from oxidizing.

The gas density of various metal laser welding machines has a greater effect on the weld than its ionization. In order to reduce or eliminate the influence of process parameters such as laser power, defocusing amount, welding speed, pulse frequency, type and flow of shielding gas on steel and aluminum laser welding defects, laser marking has the advantages of anti-wear and non-fading. Dongguan laser processing irradiates the laser beam to the surface of the processed object to remove or melt the material and change the surface of the object to achieve the purpose of processing. It is a non-contact processing, without mechanical force, the processing material is not deformed, and the damage is small.

This has become an obvious advantage that distinguishes laser technology from other processing methods. For example, in the field of crystal oscillator marking, according to the traditional paint marking method, due to the poor adhesion of stainless steel to paint, the processed crystal oscillator cannot be cleaned, which brings a lot of inconvenience. Now, laser marking is mostly used in this field, so The resulting mark is clear, durable and indelible.