Research on Turning 2.25Cr-1Mo-0.25v Force Density Function and Stress

This article in view of the high strength steel 2.2SCr-1lMo-0.25V difficult processing materials in the process of turning cutting force is bigger, the blade is easy to damage, solve the problem of the cutting tool rake face stress distribution and temperature distribution as the as the main research contents, according to the experimental results setting up the cutting force empirical formula and tool-chip contact area of empirical formula; the tool rake face stress distribution and temperature distribution as the as the main research content, cutting high strength steel 2.2SCr-1Mo-0.25V cutting force experiment, combined with the cutting force and tool-chip contact area empirical formula established H groove cemented carbide cutting tool rake face of mechanical heating density function; the force density function as boundary conditions for the tool stress field simulation; obtain H-groove carbide tool rake face force distribution is characterized by the main cutting edge tip and the stress value is relatively large, the stress distribution is relatively concentrated; for the turning blade stress field and temperature field of finite element analysis provides the boundary conditions during the process of turning, in order to further improve the tool breakage mechanism provides basic data and reference.