Abstract
The productivity and accuracy of machine tools now became most significant as the cutting conditions changes continuously. Therefore to withstand against these cutting conditions the machine tool structural material must have higher stiffness and damping. This review deals with various research works to study the stiffness and damping of epoxy granite or polymer concrete. It is reported that the epoxy granite shows improved damping and high strength to weight ratio than that of conventional machine tool structures of steel and cast iron.
Highlights
INTRODUCTIONThe research in the field of alternative structural materials capacity
The productivity and accuracy of machine tools with respect to the stiffness and damping of developed became most significant as the cutting conditions changes continuously
A lot of research works reported was based on characterization of mechanical properties of developed materials referred as epoxy granite or polymer concrete
Summary
The research in the field of alternative structural materials capacity. Higher the damping more is the energy dissipated for machine tools is increased in last few decades. The productivity and accuracy of machine tool became most significant due to continuously changing cutting conditions. The productivity and accuracy is adversely affected by from vibrating system per cycle. Logarithmic decrement method into two types: Forced vibrations and Self-excited vibrations. The forced vibrations are due to unbalance rotating parts or intermittent engagement of work piece and cutter. Such vibrations can cause waviness in machined surface of work piece. Forced vibrations are intense at resonance condition. X1 and X2 are any two successive amplitudes, δ is logarithmic decrement
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