Tarafa Y. The technique of resistance enhancement of variable speed cutting machines along the cutting edges

The Research Object - Production technology of high speed steel cutters with variable cutting speed along the length of the cutting edge of the teeth. The Purpose - to increase resistance of the mills operating under irregular cutting speeds along the length of the cutting edges of the teeth, due to varying properties in the edges of the teeth depending on the current of the operational functions, as well as the use of special composite coatings. We used the following methods: provision of engineering technology, principles of synthesis of the function- oriented technologies, methods of experiment planning, methods of the statistics. The results show the following scientific and practical values: 1. To improve the durability and performance of the first propose, cutters perform various properties along the length of the edge, depending on the actions of operational functions. 2. First developed principles for improving durability and performance of the cutters depending on the action of changing the cutting speed. 3. A general approach to the creation process is to ensure the properties of the cutting edges of the teeth depending on the characteristics of the variables in the cutting speed along the length of the edge of the tooth. 4. Developed technology has enabled to increase by 1.9 ... 2.0 times the resistance of the cutters or 1.2 ... 1.4 times of their performance. Results have been implemented on Snezhnjansky Engineering Plant JSC "Motor Sich" (Ukraine), Bryansk Open Joint Stock Company "Scientific Research Institute" ISOTHERMS "(Russia) and the Donetsk National Technical University (Ukraine). Area - the Machine-building enterprises of Ukraine.