通过从冷弯卷边角钢截取平板和弯角板件进行材料力学性能试验,研究冷弯型钢焊接后不同部位对焊接性能的影响。考虑到冷弯型钢实际中的焊接形式存在两种,冷弯型钢与冷弯型钢的焊接以及冷弯型钢与热轧型钢或钢板的焊接,构件试验中设计了这两种焊接连接形式,通过试验确定两种连接形式对焊接性能的影响。试验结果表明,冷加工对焊接性能具有一定的影响,对平板处焊接性能影响较小,对弯角处焊接性能影响明显。 The mechanical properties of the cold-formed steel were studied by intercepting the flat plate and the corner plate from the cold-rolled curled angle steel to study the influence of different parts on the welding performance after the cold-formed steel was welded. Taking into account the actual cold-formed steel in the form of two types of welding, cold-formed steel and cold-formed steel welding and cold-formed steel and hot-rolled steel or steel welding, component test designed the two forms of welding connections, through the test Determine the impact of two types of connection on the welding performance. The test results show that the cold working has a certain influence on the welding performance, has little influence on the welding performance of the flat plate, and has obvious influence on the welding performance at the corner.