It uses the finite element simulation to study the stress distribution,dangerous cross-section and mounting torque of AG6×1 overrun thread substrate under different mid-diameter overruns,and tests the plant-ing torque of AG6×1 overrun thread under different mid-diameter overruns.The finite element simulations ob-taines that the stress on the base of the cast magnesium alloy(ZM6)is greater than 176.0 MPa and less than 278.9 MPa when the mid-diameter interference amount is greater than 0.030 mm and less than 0.060 mm,which is in the elastic-plastic deformation range of the cast magnesium alloy,and the AG6×1 overrunning thread subparts reaches the preload state;AG6×1 interference thread diameter interference and applied installa-tion torque range are0.030～0.060 mm and5.83～11.19 N·m,respectively.The load-bearing stress is the highest at the first threaded diameter of the AG6×1 threaded subsets,which is the most prone to failure.The experimental results show that the planted pile torque values obtained by FEM calculations are nearly consistent with the measured torque values.
关键词
AG螺纹/有限元/应力/安装扭矩/中径过盈
Key words
AG thread/finite element method/stress/mounting torque/pitch diameter interference
维普
万方数据