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EFERENCES
: Arnone, “High
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INTRODUCTION
Machining processes, which include cutting, grinding, and various non-
mechanical
chipless processes, are desirable or even necessary for the
following basic reasons: (1) Closer dimensional tolerances, surface
roughness, or surface-finish characteristics may be required than are
available by casting, forming,
powder metallurgy, and other shaping
processes; and (2) part geometries may be too complex or too expensive
to be manufactured by other processes. However, machining processes
inevitably waste material in the form of chips, production rates may be
low, and
unless carried out properly, the processes can have detrimental
effects on the surface properties and performance of parts.
Traditional machining processes consist of turning, boring, drilling,
reaming, threading, milling, shaping, planing, and broaching, as well as
abrasive processes
such as grinding, ultrasonic machining, lapping, and
honing. Advanced processes include electrical and chemical means of
material removal, as well as the use of abrasive jets, water jets, laser
beams, and electron beams. This section describes the principles of
these
operations, the processing parameters involved, and the charac-
teristics of the machine tools employed.