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Stock removal sr, Two-times gap (2g), 7 p ar amet ers in the er osion t able – HEIDENHAIN TNC 406 User Manual

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4 Programming: Fundamentals, Files, Program Entry, Spark Erosion, Erosion Tables

4.7 P

ar

amet

ers in the Er

osion T

able

Stock removal SR

The stock removal is the volume of removed workpiece material (Vw)
per unit of time.
Stock removal is measured in ccm/minute.

Two-times gap (2G)

During the erosion process, a minimum gap G must be maintained
between the electrode and the workpiece. The higher the current, the
larger the gap (G = radial gap) can (and should) be.

Minimum for the two-times gap

The two-times gap 2G is the minimum total gap (2 x G in millimeters)
that must be maintained in the cavity between the electrode and the
workpiece (2G = diametrical gap).

Vw

G

G Rmax

Rmax

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