What's the difference between a die laser welder and a spot welder?
Laser welding can only weld small things, welding welding is big things
Laser spot welding is current through short circuit two electrode moment and became the temperature and pressure are very high, the steel is melted, will produce crystallization during the cooling process, the two plates together, the advantage of this method is to make a lot of layer steel plate welding, but also combined however, because of deficiencies are not in good control in the welding process of generating heat and pressure, so after welding steel plate in cooling time takes longer, it is easy to change the thermal stress, it is in order to avoid the occurrence of thermal stress change and reduce its pressure and heat it is easy to generate welding penetration status.
Under normal circumstances, the new Hua Peng can handle two pieces of the same material objects, so that it becomes a whole machine, it is called laser welding machine. With the car on the steel plate welding as an example, in fact, the welding process is to heat the steel plate, making it the material is liquefied, and during the cooling process, re condensed into a whole, in the process of heating and cooling time is very important, because of their different time can be divided into many the iron and steel varieties, after setting the crystal probably in terms of the two process faster, more will not change the nature of the original plate, due to the change of welding characteristics leads to less, more in line with the design of the car needs strength, the security will be more secure.
