08/06/2017

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Rockwell High Productivity and efficiency of the metal-working equipment, the quality and accuracy of machine parts is largely dependent on how the operating system associated with the cutting tool. In engineering for machining parts of machines use different types of instruments. The cutting tool attached to the workpiece the desired shape and size. Its efficiency and reliability have a significant impact on cost-effectiveness of engineering production. Operational characteristics of the cutting tools are highly dependent on the quality of the material from which these tools are made. Materials designed for cutting tools, a number of indicators should significantly exceed the materials used in engineering for manufacturing various components. Below are some basic requirements, applicable to the tool materials. 1. Tool material should have high hardness in delivery condition or attainable as a result of heat treatment - at least 62 65 hrc Rockwell (C Scale). 2. When cutting metals can be significant amount of heat, and the cutting part of the tool is heated. The temperature of the working surfaces and cutting edges of the instrument depends on the conditions under which being processed, and can reach several hundred degrees. It is necessary that at significant temperatures cutting tool surface hardness does not significantly decreased. Therefore, the tool material must have high heat resistance, ie ability to maintain high hardness at elevated temperatures and the original hardness after cooling. 3. Along with the heat-resistant tool material should...