关键词: 材料合成与加工工艺, 中空凸轮轴, 滚花连接, 压装力, 有限元, 数值模拟

Abstract: The knurling connection mechanism of the hollow assembled camshaft was presented,the FEM numerical simulation was used to analyze the factors influencing the knurling connection press fit load and the press fit tests of knurling connection was performed.The results show that the material match of camlobe and shaft,the knurling width,the magnitude of connection interference,the knurling tooth form and tooth space influence the knurling connection press fit load.As the materials of camlobe and shaft are established,camlobeshaft connection strength will increase with the appropriate choice of the knurling tooth form,augment of the interference or the knurling width.The experimental results of the knurling connection were in agreement with the numerical simulation results.It illustrates that the numerical simulation results can provide the basis for the manufacture of assembled camshaft and the design of the assembling equipments of knurling connection.

Key words: materials synthesis and processing technology, hollow camshaft, knurling connection, press fit load, FEM, numerical simulation