Views: 0 Author: Site Editor Publish Time: 2021-07-24 Origin: Site
A high degree of automation of the laser welding machine welding process is simple.
The non-contact operation method of laser welding machines can meet the requirements of clean and environmental protection. The use of laser welding machining workpiece can improve the work efficiency, and the use of laser welding machining workpiece appearance beautiful, small weld, welding depth, welding quality is high. In addition, the laser welding machine is widely used in the processing of dental denture, keyboard welding, silicon steel sheet welding, sensor welding, battery seal cover welding, and so on. What is a laser welding machine? Here are some answers.
Here is the content list:
l Development history
l Working principle
l Main kinds
Prior to the 1970s, the high-power continuous waveform (CW) laser had not been developed, so the research focus was on pulsed laser welding (PW).
Most of the early laser welding research experiments used ruby pulse lasers. The typical peak output power PM of a 1ms pulse is about 5kW, the pulse energy is 1~5J, and the pulse frequency is less than or equal to 1 Hertz.
The average output power P of these lasers was quite low, although they were able to operate at relatively high pulse energy, which was mainly determined by the low working efficiency of the lasers and the exciting properties of the luminescent materials.
Due to its high average power, laser soon becomes the preferred equipment for spot welding and seam welding. The welding process is carried out through the welding joint lap. It is not until the birth of the continuous power waveform laser of more than 1KW that the real meaning of laser seam welding can be realized.
Laser welding uses high-energy laser pulses to heat the material locally in a small area. The energy radiated by the laser diffuses into the material through heat conduction and forms a specific molten pool after the material is melted. Laser welding is a new welding method, mainly for thin wall materials, precision parts welding. Laser welding spot welding, butt welding can be realized, stitch welding, sealing welding, and so on, and deeply than high, wide weld width is small, small heat-affected zone, small deformation, welding speed, welding seam smooth, beautiful, without processing or simply processing after welding, welding quality is high, no pores, accurate control, focusing on small points of light, high positioning accuracy, easy to realize automation.
The laser welding machine is often called an energy negative feedback laser welding machine, laser welding machine, laser welding machine, laser cold welding machine, laser argon welding machine, laser welding equipment, etc.
Laser welding machine according to the work methods often can be divided into laser mold welder burning (manual) laser welding equipment, automatic laser welding machine, jewelry laser welding machine, laser spot welding machine, optical fiber transmission welding machine, laser welding machine, the galvanometer handheld welding machine and so on, the special laser welding equipment with sensors, silicon steel sheet laser welding equipment, welding machine keyboard laser welding equipment.
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