摘要
Abstract
HC340/590DP dual-phase steel is one of the preferred materials for parts of structure,reinforcement and anti-collision.With high plasticity,toughness and un-hardenable property,it has good welding properties.Based on the analysis of the chemical components,mechanical properties and welding properties of HC340/590DP cold rolled dual-phase steel,a large number of tests,inspections and welding process controls are made by applying laser welding technology with 1 kW laser generator,laser head,optical system,robot,control system,fixture system and peripheral integrated system to confirm the welding parameters:welding speed 40 mm/s,power 1 kW,spot diameter 0.6～0.8 mm.The welded joints obtained under this parameters can be completely penetrated without collapse,and have good surface appearance and appropriate weld width,which ensures the welded joints properties of test specimen to meet the practical requirements and achieve the production purpose.关键词
HC340/590DP钢/焊接性/焊接工艺分析Key words
HC340/590DP steel/welding properties/analysis of welding procedure分类
矿业与冶金
