超高强钢中厚板机器人螺柱焊工艺试验研究
关键词 复合热源螺柱焊接 冲击韧性 接头性能 冷裂纹倾向
毕业设计说明书（毕业论文）外文摘要
Title Experimental Research on Robot Stud Welding Process of Steel Plate in Super High Strength
Abstract
Aiming high strength and high hardness weld carbon steel and Q235 steel studs modulation between the practical application of some limitations, such as cold cracking, holes, lack of penetration problems, stud welding robot made of composite heat method using direct screw column welding, heat induction preheating + arc stud welding, heat induction preheating + drawn arc stud welding method of welding heat treatment of three to compare the quality of the welded joint, and a welding method preferably selected , these three samples were studied welding weld appearance after forming joint performance and cracking tendency, the study found, using a composite sample heat source can form a good weld appearance, performance is also welded joints than direct stud well, while the induction heat arc stud welding preheat + + after heat treatment is better than induction heat preheat + arc stud welding.
Keywords Composite heat stud welding Impact toughness
Joint performance Cold cracking tendency
目录
1 绪论 1
1.1 引言 1
1.2 螺柱焊焊接技术的发展 2
1.2.1 国外螺柱焊接技术的发展 2
1.2.2 国内螺柱焊接技术发展现状 3
1.3 螺柱焊接 3
1.3.1 螺柱焊接原理和系统组成 3
1.3.2 焊接质量的影响因素 4
1.3.3 螺柱焊接的特点 4
1.3.4 螺柱焊接的发展趋势 5
1.5 本课题主要研究内容 6
2 机器人复合热源自动螺柱焊工艺试验 6
2.1 685钢螺柱焊的设计思路 6
2.2 机器人复合热源自动螺柱焊的材料 7
2.2.1. 675调制钢 7
2.2.2. 685调制钢 8
2.2.3. Q235螺柱 8
2.3 机器人复合热源自动螺柱焊的试验设备 9
2.4 机器人自动螺柱焊的焊接试验及焊缝外观 11
2.4.1 试验方案 11
2.4.2 螺柱焊接试验 12
2.4.2.1 直接焊接 12
2.4.2.2 预热焊接 12
2.4.2.3 预热+后热方法焊接 13
2.4.3 对三个焊接的效果图进行分析 14
3 机器人螺柱焊焊缝的金相及力学性能分析 14
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