Because most of the sheet metal fabricators will choose partial heating for the welding method, the welded parts after welding will cause unavoidable stress field and deformation in the structure, which will jeopardize the structural bearing capacity, processing accuracy and specification reliability. At the same time in the weld and the intersection of the weld will continue to cause stress concentration, endangering the structure brittle fracture; b, the welded joint is easy to have a certain number of shortcomings: such as cracks, pores, weld tumor, not fused, not fused. The defects will reduce the compressive strength, cause stress concentration, and destroy the denseness of the weld; c. The welded joint has a great unevenness of performance, because the effective composition of the weld and the alloy composition is not the same as the original material, and the thermal cycle experienced by each part of the joint is not the same, so that the performance of the joint in different areas is not the same; d. The CNC punching machine sheet metal processing welding over the kind of continuous high temperature, strong light and some harmful gases, which have a certain impact on the body. The body has certain effects, so it is necessary to improve labor protection. There are some necessary guidelines for the sheet metal parts in the production and processing of sheet metal chassis, and we must follow them.
Contact: Manager Yang
Tel: 0574-26857988
Mobile: 15658228286
Website: www.nbhgsjd.com
Add: No.29 Yuwingshan Road, Beilun, Ningbo, Zhejiang, China
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