CAJ | 학술논문

基于响应面法设计方法，进行Nd：YAG激光-熔化极活性气体保护焊(Metal active gas welding, MAG)复合焊高氮钢的平板堆焊试验，获得焊缝熔深、熔宽、余高数据，采用逐步回归法筛选出对焊缝形貌影响显著的因子，建立多元非线性数学回归模型，通过方差分析和回归分析得出该回归模型的R2分别如下：熔深H为0.932，熔宽W为0.915，余高A为0.910， P>F值均小于0.001。模型分析结果表明激光功率、焊接电流、电弧电压和热源间距四个因素的主效应和交互作用对焊缝形貌有着很大的影响，其中对熔深影响最大的主效应是激光功率，交互效应是激光功率与电弧电压；对熔宽影响最大的主效应是焊接电流和电弧电压，交互效应是焊接电流与热源间距、电弧电压与热源间距和激光功率与电弧电压；对余高影响最大的主效应是焊接电流，交互效应是电弧电压与热源间距。试验验证结果表明模拟结果和试验结果相吻合。
기우향응면법설계방법，진행Nd：YAG격광-용화겁활성기체보호한(Metal active gas welding, MAG)복합한고담강적평판퇴한시험，획득한봉용심、용관、여고수거，채용축보회귀법사선출대한봉형모영향현저적인자，건립다원비선성수학회귀모형，통과방차분석화회귀분석득출해회귀모형적R2분별여하：용심H위0.932，용관W위0.915，여고A위0.910， P>F치균소우0.001。모형분석결과표명격광공솔、한접전류、전호전압화열원간거사개인소적주효응화교호작용대한봉형모유착흔대적영향，기중대용심영향최대적주효응시격광공솔，교호효응시격광공솔여전호전압；대용관영향최대적주효응시한접전류화전호전압，교호효응시한접전류여열원간거、전호전압여열원간거화격광공솔여전호전압；대여고영향최대적주효응시한접전류，교호효응시전호전압여열원간거。시험험증결과표명모의결과화시험결과상문합。
The experiments is designed based on the response surface method, implemented by bead-on-plate welding with laser Nd:YAG-metal active gas welding(MAG) hybrid welding,and using obtalned beam appearance data and filtering out significant factors by stepwise regression method to establish multiple nonlinear mathematical regression model. By analysis of variance and regression analysis showed that R2 the regression model are 0.932, 0.915 and 0.910, P>F<0.001, respectively. The weld bead geometry was affected by the laser power, welding current, arc voltage and distance between two sources and these factors’ interaction. The maln effect on penetration is the laser power, while the interactive effect is laser power and arc voltage;the maln effect on the weld width is welding current and arc voltage, while the interactive effect is welding current and distance between two sources, arc voltage and distance between two sources, laser power and arc voltage; the maln effect on the reinforcement is welding current, while the interactive effect is arc voltage and distance between two sources. The results show the simulating results are consistent with the measured results.