There are two common types of laser welding machines, one is jewelry laser welding machine, the other is jewelry flame welding machine, flame welding machine is a local heating process, which may cause stress or deformation, so it is not suitable for welding jewelry. Jewelry laser welding machine is a kind of laser welding machine, it is a kind of laser welding machine specially manufactured for jewelry.
The principle of the jewelry laser welding machine is that under the action of the laser, the surface of the metal will undergo a series of changes. The surface is heated by the laser and quickly conducted to the depths. Under the condition of a certain laser power density, the surface will melt. When the laser power density is high, the surface will instantly evaporate, forming a molten pool on the workpiece. Due to the relative laser movement of the workpiece, the molten metal is accelerated at a certain angle, and the heat transfer temperature of the liquid metal drops sharply, thereby forming a weld.
Jewelry laser welding machine equipment belongs to pulse welding equipment. The size and pulse width of pulse energy can be adjusted. Pulse energy affects penetration depth, penetration width, and penetration depth. The external optical path adjustable beam expander also adjusts the focus spot to adjust the size of the solder joints. Compared with other welding processes, laser welding can realize the welding of a variety of materials, and has the advantages of small thermal deformation of the welding components and good joint quality.
Jewelry laser welding machine is developed and produced by laser. It adopts ceramic concentrating cavity, corrosion resistance, high temperature resistance, high photoelectric conversion efficiency, concentrating cavity life, and long xenon lamp life; protective gas output ensures that the solder joints are beautiful, and the solder joints are not oxidized and discolored. Working continuously for 24 hours, the overall performance of the machine is stable. It has the advantage of being able to achieve partial heating in a small area, and is widely used in industries such as jewelry, batteries, and mobile phone parts.