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高强度热成形钢板螺母凸焊机工艺介绍

High-strength hot-formed steel plate nut projection welding machine process introduction

High-strength hot-formed steel plate nut projection welding machine process introduction

Due to the ultra-high strength of high-strength hot-formed steel sheets and their extremely high mechanical safety, they are increasingly used in the automotive industry. The use parts are concentrated on the front / rear bumper frame, A pillar / B pillar, The central channel and the front and rear door crash plates and other key parts, these parts have nuts and bolts that need to be convex welded; resistance welding is a choice for the body part projection welding because of its short welding time, small heat affected zone, and high efficiency. Welding of strength hot formed steel plates with nuts and bolts also uses resistance welding equipment. 【More details】
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