Analysis of thermodynamical phenomenas of stainless steels by drilling

Abstract

The paper described the phenomenas, which influencing on the twist drill of chisel cutting edge. Research and development of the phenomenas its very important for the next problem solution by drilling. The cutting part of twist drill is frequently the tool wear (for example fracture of cutting part) in the tool peak point and by chisel cutting edge. This is problems is very important and use for very difficult the machinability materials (for example stainless steels Cr18Ni8). The results of experiments verifying of the tools for the tool life of twist drill in practice. The temperature of a tool plays an important role in thermal distortion and the machined part’s dimensional accuracy, as well as the tool life in machining. The paper described the experimental results of research works number 01/3173/06.