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Description / Abstract:
This American National Standard defines terms for certain basic
features of single-point cutting
tools; it deals with those features which are necessary to define the
geometry of the cutting part.
The first main section (section 4) defines general terms applicable to
single-point tools,
including surfaces on the workpiece, tool elements, certain specific
dimensions and tool and
workpiece motions.
In the subsequent sections two systems of reference planes are defined
with the aid of which
so-called "tool angles" and "working angles" are defined. One system
of reference planes is the
"tool-in-hand system"; this is used to define the geometry of the tool
so that it can be
manufactured and measured. The other system of reference planes, "the
tool-in-use system", is
required to define the effective geometry of the tool when it is
actually performing a cutting
operation.