The Influence of Temperature Changes on the Properties of Pore and Shaft Fit
It took the hole and shaft fit as the research object,when the working temperature deviates from the standard design temperature by 20 ℃,the fit properties of the hole and shaft will change:originally designed as a gap fit,as the temperature increases,the fit properties gradually change to a transition fit,and in severe cases,it may even become an interference fit,and directly affecting the working perform-ance.Theoretical calculations and finite element simulations have shown that temperature changes can af-fect the fitting properties of holes and shafts.It will provide a basis for the study of hole and shaft fit as well as thermal deformation in CNC machine tools and machining centers.
temperaturethermal deformationcoordination propertieshole axisthermal expansion and contraction