Author(s)

A. Myers, D.G. Ford & Q. Xu

Abstract

The structural stiffness of a machine tool is one of the main criteria that establishes its ability to produce accurate precision components. High stiffness is required both statically and dynamically each affecting different aspects of the machming process. The need for high static stiffness arises from the requirement to produce parts to a desired size and shape [l] and although finish machining often takes place with small depths of cut and correspondingly light cutting forces, the resulting deflections can still be excessively large if the machme has inadequate static stiffness. The resulting deflection can thus produce out of tolerance work-pieces. The need for high dynamic stiffness results from two separate aspects of the machining process. In the first case inadequate dynamic stifhess will result in poo

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