Shaping of Grooves, Slots, Steps and Keyways
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Shaping of Grooves, Slots, Steps and Keyways
Shaping of Grooves, Slots, Steps and Keyways - For shaping grooves, slots and keyways, a square nose tool similar to a lathe parting tool is used. Rigidity of the tool is very important. Avoid excessive overhang and ensure that the tool clearances are not so great as to weaken the tool.
Shaping grooves
A - Tool Feed
B - Work
Keyways, slots and recesses may be shorter than the full length of the job. In such cases, a hole is drilled at the closed end. This is necessary to prevent chips piling up and possibly breaking the tool. A flat nosed tool is employed for cutting keyways.
| A - Depth of keyway equals one half thickness of the key at this point | B - Flat nosed tool |
| C - Hole drilled at closed end of key way | D - Mark indicating terminus of key way |
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