welding and laser cutting

The advantages of welding and laser cutting

We can provide a variety of metal welding services based on environmental requirements and materials, including laser welding and friction stir welding. We also provide laser cutting services for various metals,
1. Main advantages of laser welding:
1) High precision and low deformation, with a heat affected zone of only 0.1-0.3 millimeters, narrow welds and extremely low deformation, suitable for thin plates and precision components.
2) Efficient automation of welding: Welding speed can reach 10m/min or more, supporting preset parameter “foolproof” operation, reducing manual intervention.
3) Material compatibility: Can weld high reflective materials such as stainless steel and aluminum alloy, and even connect dissimilar metals.
2. Main advantages of friction stir welding:
1) Green and environmentally friendly: free from smoke, splashes, ultraviolet radiation, and electromagnetic radiation, the welding process is safe and pollution-free.
2) High welding quality: The joint has high strength, no cracks or pores, and small deformation.
3) Low cost and high efficiency: No need for welding wire and protective gas, low energy consumption, high degree of automation, can reduce costs.
4) Strong material compatibility: suitable for low melting point materials such as aluminum alloys, magnesium alloys, copper alloys, etc., and can weld metal based composite materials.
3. Advantages of laser cutting technology:
1) High precision and no burrs: The incision is smooth and does not require secondary processing. The 3D pipe cutting machine can complete multiple processes such as cutting and punching in one go.
2) Efficient and flexible: Fast cutting speed, supporting rapid separation of thick plates (such as steel plates), and customizable automated production lines.
3) Multi functional integration: combining welding, rust removal and other functions, such as rust welding technology, to reduce pre-processing steps.

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welding and laser cutting

How It Works

01. Laser irradiation stage

Technical features: High energy density laser beam (usually CO ₂ or fiber laser) is focused on the surface of the workpiece, with a power density of up to 10 ⁶ -10 ⁷ W/cm ², instantly heating the material locally to the melting or vaporization temperature.

02 Formation stage of molten pool

Technical features: After absorbing laser energy, the material forms a molten pool, and the surface tension of the molten pool works together with the metal vapor pressure to stabilize the shape of the molten pool through pulse modulation or swing welding technology.

03 Dynamic change stage of molten pool

Technical features: Convection, mass transfer, and metallurgical reactions occur in the melt pool, and element segregation or brittle phases may occur during welding of dissimilar materials.

04 ‌Cooling and solidification stage of the molten pool

Technical features: Rapid cooling of the molten pool (cooling rate can reach 10 ³ -10 ⁶ K/s), forming a fine grain structure, and the weld strength can reach more than 90% of the base metal.

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