AUTHORS: Gyula Varga, Tibor Puskás, István Debreceni

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ABSTRACT: The paper pertains to experimental examination of cylindrical error deviations when machining of cylindrical workpieces by low volume of coolants and lubricants. The volume of coolants and lubricants was reduced to decrease the environmental pollution caused by cutting fluid. However, our aim was to get a function relation between cutting data (cutting speed, feed rate), parameters of coolants and lubricants (viscosity, consumed flow rate), and error deviation of machined cylindrical workpiece. The cylindrical surface is created when the workpiece is standing and the single point cutting tool having special fixture makes the principle (rotating) and auxiliary (linear) motions as well. Full factorial experiment design was used in the experimental study when executing this “outer boring” with a carbide insert in AISI 1045 steel. As the kinematics and rigidity of the machining examined here differs from the usual machining that is why it worth to examine it. The aim of the research is to determine empirical expressions between the technological parameters and the cylindrical error deviations. On the base of examinations, the appropriate parameter combination can be selected.

KEYWORDS: Outer boring, reduced environmental load, cylindrical error deviation, Taguchi Experiment Design

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