Expanding the Numerical Control Version of Computer Graphics to Include Automatically Computed Machine Feeds and Speeds Page: 35
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35
Example of Cutting Routine
An example of a possible routine input statement is
detailed below. The statement format is that used in
automatic programmed tool programming commonly addressed
as APT. The statement is as follows:
CALL/CGTOOL, Xl,X2,X3,X4,X5,X6,X7,X8,X9,X1o
In this example X1 through XIO are scalars which desig-
nate the following (3, III. B, p. 1):
Xl=Cutter diameter in inches
X2=Cutter flute length in inches
X3=Cutter shank diameter in inches
X4=Distance of cutter holder out of spindle in inches
X5=Distance from holder to beginning of cutter flutes
X6=Number of cutter flutes
X7=Cutter material
X8=Cutter corner radius
X9=Cutter deflection
X10=Direction of cutter rotation
Scalars such as X7 above are obtained by referring to
one of the several appendices that would necessarily exist
to contain various data which must be continuously referenced.
These appendices would be located in a manual designed to
describe the computer graphics speed and feed system. Some
of the data used for reference is obtainable from such sources
as machinability texts and machining hand books. A good
example of a source of cutting data for reference standard
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Berry, Ronny E. Expanding the Numerical Control Version of Computer Graphics to Include Automatically Computed Machine Feeds and Speeds, thesis, August 1979; Denton, Texas. (https://digital.library.unt.edu/ark:/67531/metadc504220/m1/41/: accessed April 25, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; .