A kind of automobile decorative cover bracket welding method

Abstract

The invention belongs to the technical field of welding of an automobile decorative cover bracket and specifically relates to a method for welding the automobile decorative cover bracket. The method comprises two steps of arranging a filling layer between an automobile decorative bracket and a base plate and adopting projection welding for welding a weld joint formed between the automobile decorative bracket and the base plate. Compared with the prior art, the method provided by the invention has the advantages that an H08A coating welding stick is utilized to arrange the filling layer between the automobile decorative bracket and the base plate; the spatter loss coefficient of the coating welding stick is reduced to below 6% in a welding process; after the welding, the weld joint is pore-free; the welding forming coefficient is increased; the projection welding is utilized to weld the automobile decorative bracket and the base plate on the periphery of the weld joint; slow cold and hot treatment is adopted; the welded part has a certain toughness and will not generate cracks, so that the tensile strength and the shock resistance index are increased; the weld joint will not crack even under a long-term high-strength vibration use condition; the use performance of the decorative cover bracket is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of welding of automobile decorative cover brackets, and in particular relates to a welding method for automobile decorative cover brackets. Background technique [0002] Cars are the most commonly used means of transportation today, and the car decoration covers include engine decoration covers and dust covers, etc. The car will inevitably vibrate during the form process, especially the vibration near the engine is more serious, and the engine decoration cover covers the engine. , not only can make the engine compartment more beautiful, but also protect the engine. The main accessories of the engine protection cover include the bracket of the engine decoration cover. The part of the gas mask is easy to break, and now it is usually welded by ordinary welding technology. The rigidity of the welding place is poor and the stability is insufficient, which affects the normal use of the decorative cover. Therefore,...

AI Technical Summary

Problems solved by technology

[0002] Cars are the most commonly used means of transportation today, and the car decoration covers include engine decoration covers and dust covers, etc. The car will inevitably vibrate during the form process, especially the vibration near the engine is more serious, and the engine decoration cover covers the engine. , not only can make the engine compartment more beautiful, but also protect the engine. The main accessories of the engine protection cover include the bracket of the engine decoration cover. The part of the gas mask is easy to break, and now it is usually welded by ordinary welding technology. The rigidity of the welding place is poor, and the stability is insufficient, which will affect the normal use of the decorative cover. Therefore, further research on the welding method is needed.

Images