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Baosteel breaks through the barrier of laser welding technology for hot-formed steel of aluminum-silicon coating

From: chinese steel
publisher: harris
Time: 2019-06-18
Summary: Baosteel breaks through the barrier of laser welding technology for hot-formed steel of aluminum-silicon coating

  Recently, at the Baosteel Technology Show held in Germany, Baosteel Laser Tailoring Co., Ltd. released the world's first new technology for aluminum-silicon coated hot-formed

  Aluminium-silicon coated thermoformed steel has excellent resistance to high temperature oxidation. The surface of the steel sheet is not oxidized during hot stamping. It is widely used in the manufacture of thermoformed parts, but the high aluminum content in the coating enters the weld and the weld bead performance is deteriorated. . The welding method is to first remove the aluminum-silicon coating by laser ablation or other methods, and then perform welding. This method not only increases the plating ablation process, but also increases the equipment input cost, and the plating ablation speed is lower than the welding speed, which reduces the production efficiency and increases the production cost. At the same time, more dust is generated during the process of removing the plating, which requires centralized collection. And processing, increasing production support costs.

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