CAJ | 학술논문

运用Simufact-Welding软件对链轮和凸缘采用激光焊接仿真，在其他参数相同的情况下，分析了两种焊接速度下焊缝处的热循环，以及链轮和凸缘的总变形和等效应力．仿真结果表明：焊接速度为13 mm／s时，焊缝处采样点的最高温度为2831℃，焊件的总变形小于1．82 mm，焊件的等效应力小于450 MPa．焊接速度为13．2 mm／s时，焊缝处该采样点的最高温度为1455℃，焊件的总变形小于1．03 mm，焊件的等效应力小于400 MPa．
운용Simufact-Welding연건대련륜화철연채용격광한접방진，재기타삼수상동적정황하，분석료량충한접속도하한봉처적열순배，이급련륜화철연적총변형화등효응력．방진결과표명：한접속도위13 mm／s시，한봉처채양점적최고온도위2831℃，한건적총변형소우1．82 mm，한건적등효응력소우450 MPa．한접속도위13．2 mm／s시，한봉처해채양점적최고온도위1455℃，한건적총변형소우1．03 mm，한건적등효응력소우400 MPa．
The simulation of flange and sprocket weld by laser was carried out with Simufact-Welding software in this paper.The thermal cycle of weld seam with two kinds of welding speed is analyzed, as well as the deforma-tion and the effective stress of the sprocket and the flange.The simulation results show that when the welding speed is 13 mm/s,the highest temperature of weld seam at the sampling points is 2 831℃.The total deformation of the weldment is less than 1.82 mm, and the equivalent stress of weldment is less than 450 MPa.When the welding speed is 13.2 mm/s, the highest temperature of weld seam at sampling points is 1 455℃, the total de-formation of the weldment is less than 1.03 mm, and the equivalent stress of weldment is less than 400 MPa.