Machining’s Primary Cutting Parameters
China precision machining basic tool-work relationship
in cutting is adequately described by means of four factors: tool geometry,
cutting speed, feed, and depth of cut.
China precision machining cutting tool must be made of an appropriate
material; it must be strong, tough, hard, and wear resistant. The tool s
geometry characterized by planes and angles, must be correct for each cutting
operation. Cutting speed is the rate at which the work surface passes by the
cutting edge. It may be expressed in feet per minute.
For efficient machining the cutting speed must be of a magnitude
appropriate to the particular work-tool combination. In general, the harder the
work material, the slower the speed.
Feed
is the rate at which the cutting tool advances into the workpiece. "Where
the workpiece or the tool rotates, feed is measured in inches per revolution.
When the tool or the work reciprocates, feed is measured in inches per stroke,
Generally, China precision machining feed varies
inversely with cutting speed for otherwise similar conditions.
The depth of cut, measured inches is the distance the tool is set into
the work. It is the width of the chip in turning or the thickness of the chip
in a rectilinear cut. In roughing operations, the depth of cut can be larger
than for finishing operations.
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