Finite Element Analysis Of The Structural
Dynamics Of A Vertical Milling Machine
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
Keywords
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