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Guide for Face Grooving (Continued)
Point ( ) (Traversing after Grooving)
Grooving Depth Over 0.5mm: At roughing (Refer to Fig.4)
Before traversing, pull the tool back about 0.1mm after grooving, instead of
traversing subsequent to grooving.
(Failure to pull the tool back before traverse cutting will result in an unbalanced
load applied on only one side of the cutting edge.)
Before traversing, pull the tool back
about 0.1mm after grooving
(Grooving Depth Over 0.5mm: At roughing)
Fig.4
Grooving Depth under 0.5mm: At finishing (Refer to Fig.5) G
Traversing subsequent to grooving is possible because shallow groove depths
relate a small load on the cutting edge.
(Dwell-motion is not necessary.)
Traversing subsequent to grooving Grooving
(Grooving Depth under 0.5mm: At finishing)
Fig.5
Point ( )
When widening the groove width, apply the “Step Turning”
as shown in Fig.6.
The widened groove and side walls should be finished last.
(For better chip control, ap over 0.5mm is recommended.)
Fig.6
Trouble shooting
Trouble Countermeasures
Whitish trace remains at the Increase the cutting speed for finishing process only.
groove bottom.
(This can handle most of the cases).
If the method is not successful, try
as follows. 90 5
Check the insert edge's parallelness.
Adjustment: Apply the insert edge to
the work face and adjust the toolholder
within the angle of ±5'. (Fig.7)
Chips are entangled. Fig.7
Apply the toolholder's reverse mounting.
Adjust the coolant flow to the cutting edge.
When widening the groove, do not machine one deep groove.
Instead, repeat shallow grooving and turning.
Insert cracks when Reverse the facing direction.
traversing.
Groove is not straight. Check the edge's parallelness.
Decrease the feed rate.
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