Let’s learn about laser welding machines today. Since the launch of laser welding machines, its welding effect has been on the way to being loved by everyone, and more and more companies use laser welding machines for processing and manufacturing.
So what materials can the laser welding machine weld?
① Carbon steel
Carbon steel is a very common metal material, which is widely used everywhere in life. Carbon steel is welded with a laser welding machine, and the effect is better. The impurity content determines the welding quality.
② Die steel
The laser welding machine is suitable for S136, SKD-11, NAK80, 8407, 718, 738, H13, P20, W302, 2344 and other types of mold steel welding, and the welding effect is better.
③ stainless steel
In general, stainless steel welding is easier to obtain good joints than conventional welding. Welding thin plates with low-power laser welding can obtain joints with good appearance and smooth and beautiful weld seams.
Almost all thermoplastics and thermoplastic elastomers can be welded using laser technology.
⑤ Copper and copper alloy
The welding of copper and copper alloys is prone to problems of incomplete fusion and incomplete penetration. A heat source with concentrated energy and high power should be used, and preheating measures should be taken
⑥ low alloy high strength steel
As long as appropriate welding parameters are selected, laser welding of low-alloy high-strength steel can obtain joints with mechanical properties equivalent to those of the base metal.
In the process, there will be factors that affect the material’s rapid absorption of the laser welding machine’s laser light, such as temperature, incident angle of the laser beam, focus and defocus, etc.
Because of this we can also discover its shortcomings in the process:
① The welding position must be very accurate and must be within the focus range of the laser beam
② For materials with high reflectivity and high thermal conductivity, such as aluminum, copper and their alloys, the weldability will be changed by laser
③ Energy conversion efficiency is too low, usually less than 10%
Of course it also has many advantages:
① Laser welding is not limited by conditions. It can work normally under normal temperature, vacuum or other environments.
② Laser can weld refractory and heterogeneous materials.
③ Can accurately locate.
④ The welding material will not be deformed
Although it has disadvantages, it also has advantages that cannot be ignored, which is why it is becoming more and more popular among merchants.