Kitagawa QB300, Инструкция по эксплуатации

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5. Forming
・
Process the gripping part (dimension
φ
d
’) of the work
in the state that the plug is kept gripped. The
φ
d
’ part is
to be approximately the same diameter (H7) as the
diameter of the gripping part of the work, and process to
be surface roughness at 6s or less.
・
Set the hydraulic pressure during forming the same as
during processing of the work, or slightly higher.
・
When the plug distorts, lower the hydraulic pressure or
change the plug into a shape which does not easily
distort.
6. Trial cutting
・
Remove the plug for forming and grip the work to check
the jaw stroke.
・
Implement trial cutting to check the process precision
and that there is no slip, etc.
・
Contacting on the gripping surface is to be 2 points
contact of the side A and the side B when gripping.