Release time:2020-4-17
The hand-held laser welding machine is a very popular and practical laser welding machine. It is loved by customers of all sizes with its convenient and quick features. The main products of Shanghai runcha Electronic Technology Co., Ltd. are laser welding machine, laser polishing machine, laser cleaning machine, etc. you can choose according to your specific needs.
Laser welding in the hand-held laser welding machine uses high-energy laser pulse to heat the material in a small area. The energy radiated by the laser diffuses through the inside of the heat transfer guide material to form a specific melting pool after melting the material.
The hand-held laser welding machine is a new type of welding method. Laser welding is mainly used for the welding of thin-wall materials and precision parts. It can realize spot welding, butt welding, stack welding and seal welding, with high depth width ratio, small weld width, small heat affected area, small deformation, fast welding speed, flat and beautiful weld joint, no or simple treatment after welding, high weld quality and no porosity, It has the advantages of precise control, small focus point, high positioning accuracy and easy to realize automation. Generally, filler solder is not used, so the fit gap between parts is less than 15% of the thickness of the most refined parts.All parts of the parts should be relatively clean, because the welding speed is very fast, there is no time to burn off impurities.
Most of the active metals in the hand-held laser welding machine require shielding gas, but many alloys can also be welded in the air.The input of heat energy and the shape of welding spot can be controlled by parameters and components, and the heat conduction mode welding, penetration welding and keyhole welding are carried out respectively. The depth of heat transfer welding is shallow and the range is wide, similar to the shape of GTAW or TIG weld.This kind of welding is often used for some small devices, such as and tools, or electronic products such as relay cans and batteries, which need smooth welding joints and beautiful appearance.
The penetration mode in the hand-held laser welding machine has a depth equal to or slightly deeper than the welding width. When the penetration mode is adopted, the heat input is small, the pool is small and deep, and the lower average one can be used.Because of the need to maintain the keyhole in the welding cycle, only continuous or super mode continuous laser is used in keyhole mode welding.The weld pool depth width ratio of keyhole welding is high, up to 6:1, which is a high efficiency welding process.Pulse, continuous and super mode CW lasers can work in the heat conduction mode. The continuous laser can use the penetration mode, while only the super mode CW laser can be used in the keyhole welding mode.