电焊机2025，Vol.55Issue(5)：63-68,6.DOI:10.7512/j.issn.1001-2303.2025.05.08
TA1保温杯超薄板窄间距激光焊接工艺优化
Optimized Design of Laser Welding Process for Ultra-Thin TA1 Thermal Insulation Cup with Narrow Gaps
摘要
Abstract
To achieve precise connections of ultra-thin,narrow-spaced TA1 thermal insulation cup plates,this study de-signed and built a laser welding device based on a rotary positioner system,and carried out welding experiments to analyze the effects of process parameters such as laser welding power and welding speed on the microstructure,microhardness,and mechanical properties of welded joints.Results indicate that laser power and rotary positioner speed significantly impact welding quality.At low laser power(600 W)or high rotary positioner speed(11～13 r/min),low welding heat input reduces molten pool fluidity,causing uneven microstructure distribution and shallow penetration.Conversely,high laser power(1 200～1 350 W)or low rotary positioner speed(3～5 r/min)increases heat input,leading to significant joint deformation,a wide heat-affected zone,and porosity defects.Comprehensive analysis of welded joints under different parameters via ste-reoscopic microscopy,metallographic examination,and pull-off force tests reveals optimal parameters:a laser power of 1 050 W and a rotary positioner speed of 7 r/min.Under these conditions,the joint forms well,with symmetrical inner and outer wall structures,no porosity defects,and peak average and minimum pull-off forces of 1 415 N and 1 343 N,respec-tively.The optimized process significantly enhances the accuracy and quality of titanium welding,offering a theoretical ba-sis and reference for the efficient,high-quality manufacturing of pure titanium thermal insulation cups.关键词
TA1纯钛/旋转定位装置/激光焊接/工艺优化/拉脱力Key words
TA1 pure titanium/rotary positioner/laser welding/process optimization/pull-out force分类
矿业与冶金引用本文复制引用
王志杰,琚震江,赵洪,施兴富,吴林军,王泽宇..TA1保温杯超薄板窄间距激光焊接工艺优化[J].电焊机,2025,55(5):63-68,6.基金项目
江苏省高等学校基础科学(自然科学)研究面上项目(23KJB430008) （自然科学）
江苏省科技计划项目(青年基金项目)(BK20230531) （青年基金项目）
江苏省"双创博士"项目(JSSCBS20221233) （JSSCBS20221233）
