A Study on Devices with Tapered Threads

Studies the law of different thread tooth link angles and friction factors to the axial force and maximum equivalent stress of the tapered thread. The formulation of the helix angle of the device with tapered thread is deduced. With finite element method (FEM), its finite element model is established. Through comparing the result of FEA with the result of theoretical analysis, its finite element model is verified. The results show that the axial force and the maximum equivalent stress of the tapered thread decrease with the thread tooth link angle and the friction factor increasing.