Theory and Practice in the Process of T-vc Dependence Creation for Selected Cutting Material

Abstract

The theory and practice in engineering industry is not the same. Wise people say that practice is the only well-mastered theory. The most important part of new discovery is successfully realized experiment. Every experiment has inputs and outputs. Inputs are defined before experiment and they are accurately determined and described. Outputs have to be measured and described after experiment. It is very difficult to describe and express parameters that are base of experiments. Tested parameters and theirs dependencies are very often described by means of graphs, tables or definitions. Lot of parameters and their dependencies in engineering practice are not described by means of formula. Very important and often used standard ISO in engineering practice is standard ISO 3685. This standard includes characteristics for various cutting materials. The main part of this standard is T-vc dependence for cutting materials. One of the cutting materials contained in standard ISO 3685 is sintered carbide. There are instructions obtained in standard ISO 3685 for creation of T-vc dependence. The article describes differences between T-vc dependence for sintered carbide and standard ISO 3685.