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What is laser welding? The current development of laser welding technology? What fields can laser welding technology be applied to? What is laser welding? Simply put, laser welding is to heat the surface of the workpiece with laser radiation, the surface heat diffuses to the interior through heat conduction, and then by controlling the width, energy, peak power, repetition frequency and other parameters of the laser pulse, the workpiece is melted to form a specific bath, so as to achieve welding.