Fiber laser is a laser that uses optical fiber to amplify and transmit the generated excitation light, and has a wavelength of 1070nm that is easily absorbed by metals. Among many lasers, it has a particularly high energy density and has the characteristics of easy convergence of the beam, and its major advantage is that it can achieve deep melting of metals. Compared with YAG laser, it has many advantages such as deep melting, low running cost, and almost no trouble and cost for adjustment and maintenance, and its popularity has accelerated in recent years. Although fiber laser has the characteristics of high power and high efficiency, if the power is too high in manual welding of sheet metal, it will cause danger to the operator, so the power is usually limited to about 1kW when making products. When pursuing higher power and greater penetration depth, mechanical welding and robot welding can be studied.

Application background Laser oscillating welding technology was born out of the urgent need for welding quality and efficiency in modern manufacturing. Traditional welding technology has deficiencies in precision, strength and complex structure, which has prompted the rapid application of laser welding in various fields. However, it still has defects such as pores and cracks, and has limitations in welding dissimilar materials and complex-shaped parts. It is difficult to meet the stringent requirements of high-end fields such as aerospace and automobile manufacturing, affecting product quality, safety, production efficiency, etc., and increasing the manufacturing cost of enterprises. Against this background, laser oscillating welding technology came into being.

For laser wire-filling welding of butt joints of commonly used materials, in order to improve weld formation, it is generally recommended that the laser source and fiber core diameters, and the welding head configuration should ensure that the focused spot diameter is between 0.4mm and 0.6mm, and the welding wire should be of appropriate grade.

In recent years, handheld laser welding equipment has shown a booming development trend. With its many advantages such as portable and lightweight size, flexible welding methods, simple and easy operation and excellent welding quality, it has gained recognition and love from the market and users. With the expansion of the market and the growth of sales, laser handheld welding has benefited more and more industries. Although the operation of handheld laser welding is very smart and easy to use, you may encounter some small questions during use. This article shares solutions to the top ten common problems.