Circular Grinding of . Cutters
Grinding the Back Angle of End Cutting Edges(Straight)
The end cutting edge illustrated in Fig.1 may be ground In an operation immediately following the
grinding of the side cutting edge; or it may be ground independently. In the latter case the cutter
will have to be aligned by means of gauge C and clamped in position. Whenever a single-lip cut-
ter is to be ground, the aligning gauge will have to be used, as one leg of the cutting angle should
be selected to suit the material to be cut.
Setup Operations
1. Engage Index pin P into the long slot,
2. Release clamping levers T2, and using setting scale S2, set swivel arm at approx. 3°
Tighten clamping lever T2. Release clamping levers T3 and T6 and hold the Index drum F
against stop and, beginning at 90° position.
3. Set the swivel arm at the desired angle; for example set the arm at 75° for back angle of
15° (see Fig. 2 and Fig. 3). Tighten clamping lever T3 and T6.
4. TightenclampingleverT4andreleaseleverT7.Shifttheworkxtureonthetubularguide
to bring cutter into light contact with grinding wheel. Tighten clamping lever T7; and release
lever T4.
Grinding the Back Rake Angle
5. Fine adjustment screw H serves to set the index head laterally relative to the wheel and to
set the work for the desired depth of cut.
It is also possible to produce the desired back rake by holding the cutter against the cir-
cumference of the grinding wheel as is shown In Fig.4,_
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