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The choice of laser welding laser

Views:0     Author:hu     Publish Time: 2021-08-26      Origin:dapeng

Laser welding

Laser welding is a high-efficiency precision welding method that uses a high-energy-density laser beam as a heat source. Laser welding is one of the important aspects of the application of laser material processing technology. In the 1970s, it was mainly used for welding thin-walled materials and low-speed welding. The welding process is of thermal conductivity type, that is, the surface of the workpiece is heated by laser radiation, and the surface heat is diffused to the inside through thermal conduction. By controlling the width, energy, peak power and repetition frequency of the laser pulse With other parameters, the workpiece is melted to form a specific molten pool. Because of its unique advantages, it has been successfully applied to precision welding of micro and small parts. Laser welding can be realized by continuous or pulsed laser beam. The principle of laser welding can be divided into heat conduction welding and laser deep penetration welding. The power density is less than 104~105 W/cm2 for heat conduction welding. At this time, the penetration depth is shallow and the welding speed is slow; when the power density is greater than 105~107 W/cm2, the metal surface is recessed into "holes" under the action of heat to form deep penetration welding. Features of fast welding speed and large aspect ratio.

China's laser welding is at the world's advanced level, with the technology and ability to use laser to form complex titanium alloy components over 12 square meters, and has been invested in the prototype and product manufacturing of multiple domestic aviation scientific research projects. In October 2013, Chinese welding experts won the Brooke Prize, the highest academic award in the field of welding, and China's laser welding level has been recognized by the world.

Industry related products


300W-500W single-mode continuous fiber laser

It is used for cutting, welding and drilling of stainless steel, carbon steel, aluminum, copper and other metal materials. It is widely used in sheet metal cutting, hardware processing, home appliance manufacturing, 3C and other fields.


700W-1500W single-mode continuous fiber laser

It can be used with laser processing heads, galvanometers, etc. for system integration with robots, machine tools, etc., for laser fine cutting and precision welding.


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Dapeng laser specializing in R&D, manufacturing laser marking, cutting and welding machines, we also provides Laser sources and spare parts to the laser machine manufacturers in China and surrounding countries.
 

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