CFRTP/不锈钢激光焊接温度场数值模拟研究
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摘要
为了提高CFRTP/不锈钢激光焊接过程数值模拟的准确性,在考虑界面接触热导率对焊接温度场影响的情况下,建立了CFRTP/不锈钢激光焊接热接触有限元模型,利用ANSYS软件对温度场进行了数值模拟,并分别讨论了激光功率、焊接速度、夹具压力等不同工艺参数对接头熔宽及温度场的影响规律。结果发现,较传统模型而言,热接触模型可将接头熔宽计算值的相对误差从17.8%降低至6.7%,更为接近实际,可用来指导试验及工业生产。
In order to improve the accuracy of numerical simulation of CFRTP/stainless steel laser welding process,the thermal contact finite element model is established considering the influence of interface contact thermal conductivity on the welding temperature field.The temperature field was numerically simulated by ANSYS software. The influence of process parameters on weld width and temperature field was studied. The results show that the relative error of the weld width prediction value can be reduced from 17.8% of the traditional model to 6.7% using this model.It is closer to reality and can be used to guide test and industrial production.
In order to improve the accuracy of numerical simulation of CFRTP/stainless steel laser welding process,the thermal contact finite element model is established considering the influence of interface contact thermal conductivity on the welding temperature field.The temperature field was numerically simulated by ANSYS software. The influence of process parameters on weld width and temperature field was studied. The results show that the relative error of the weld width prediction value can be reduced from 17.8% of the traditional model to 6.7% using this model.It is closer to reality and can be used to guide test and industrial production.
引文
[1] JIAO JUNKE,WANG QIANG,WANG FEIYA,et al.Numerical and experimental investigation on joining CFRTP and stainless steel using fiber lasers[J].Journal of Materials Processing Technology,2017(240):362-369.
[2] JIAO JUNKE,WANG QIANG,ZAN SHAOPING,et al.Research progress on CFRTP laser joining technology[J].Aeronautical Manufacturing Technology,2016,514(19):24-29.焦俊科,王强,昝少平,等.碳纤热塑复合材料激光连接技术研究进展[J].航空制造技术,2016,514(19):24-29.
[3] SEIJI KATAYAMA,YOUSUKE KAWAHITO.Laser direct joining of metal and plastic[J].Scripta Materialia,2008,59(12):1247-1250.
[4] MOLLER F,THOMY C,VOLLERTSEN F,et al.Novel method for joining CFRP to aluminium[J].Physics Procedia,2010,5(5):37-45.
[5] ROESNER A,SCHEIK S,OLOWINSKY A,et al.Laser Assisted Joining of Plastic Metal Hybrids[J].Physics Procedia,2011,12(1):370-377.
[6] JUNG K W,KAWAHITO Y,KATAYAMA S,et al.Laser direct joining of carbon fibre reinforced plastic to stainless steel[J].Science & Technology of Welding & Joining,2011,16(8):676-680.
[7] JUNG K W,KAWAHITO Y,TAKAHASHI M,et al.Laser direct joining of carbon fiber reinforced plastic to zinc-coated steel[J].Materials & Design,2013,47(9):179-188.
[8] JUNG K W,KAWAHITO Y,TAKAHASHI M,et al.Laser direct joining of carbon fiber reinforced plastic to aluminum alloy[J].Journal of Laser Applications,2013,25(3):530-533.
[9] HUSSEIN F I,SALLOOMI K N,AKMAN E,et al.Finite element thermal analysis for PMMA/st.st.304 laser direct joining[J].Optics & Laser Technology,2017,(87):64-71.
[10] WANG QIANG,JIAO JUNKE,ZAN SHAOPING,et al.Effect of Thermal Contact Conductanceon Temperature Field of CFRTP/Stainless Steel Laser Direct Joining[J].Chinese Journal of Lasers,2017,44(4):0402002.王强,焦俊科,昝少平,等.接触热导率对CFRTP/不锈钢激光直接连接温度场的影响[J].中国激光,2017,44(4):36-44.
[11] JIAO JUNKE,XU ZIFA,WANG QIANG,et al.Research on carbon fiber reinforced thermal polymer/stainless steel laser direct joining[J].Journal of Laser Applications,2018,30(3):032419.
[2] JIAO JUNKE,WANG QIANG,ZAN SHAOPING,et al.Research progress on CFRTP laser joining technology[J].Aeronautical Manufacturing Technology,2016,514(19):24-29.焦俊科,王强,昝少平,等.碳纤热塑复合材料激光连接技术研究进展[J].航空制造技术,2016,514(19):24-29.
[3] SEIJI KATAYAMA,YOUSUKE KAWAHITO.Laser direct joining of metal and plastic[J].Scripta Materialia,2008,59(12):1247-1250.
[4] MOLLER F,THOMY C,VOLLERTSEN F,et al.Novel method for joining CFRP to aluminium[J].Physics Procedia,2010,5(5):37-45.
[5] ROESNER A,SCHEIK S,OLOWINSKY A,et al.Laser Assisted Joining of Plastic Metal Hybrids[J].Physics Procedia,2011,12(1):370-377.
[6] JUNG K W,KAWAHITO Y,KATAYAMA S,et al.Laser direct joining of carbon fibre reinforced plastic to stainless steel[J].Science & Technology of Welding & Joining,2011,16(8):676-680.
[7] JUNG K W,KAWAHITO Y,TAKAHASHI M,et al.Laser direct joining of carbon fiber reinforced plastic to zinc-coated steel[J].Materials & Design,2013,47(9):179-188.
[8] JUNG K W,KAWAHITO Y,TAKAHASHI M,et al.Laser direct joining of carbon fiber reinforced plastic to aluminum alloy[J].Journal of Laser Applications,2013,25(3):530-533.
[9] HUSSEIN F I,SALLOOMI K N,AKMAN E,et al.Finite element thermal analysis for PMMA/st.st.304 laser direct joining[J].Optics & Laser Technology,2017,(87):64-71.
[10] WANG QIANG,JIAO JUNKE,ZAN SHAOPING,et al.Effect of Thermal Contact Conductanceon Temperature Field of CFRTP/Stainless Steel Laser Direct Joining[J].Chinese Journal of Lasers,2017,44(4):0402002.王强,焦俊科,昝少平,等.接触热导率对CFRTP/不锈钢激光直接连接温度场的影响[J].中国激光,2017,44(4):36-44.
[11] JIAO JUNKE,XU ZIFA,WANG QIANG,et al.Research on carbon fiber reinforced thermal polymer/stainless steel laser direct joining[J].Journal of Laser Applications,2018,30(3):032419.