Grooving on the Lathe - 9: Radius or Chamfer the Groove
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WARNING: Machine tools present a safety hazard. Improper operation can result in severe injury. These topics are for non-laboratory study only and are not to be used in conjunction with the operation of any tool or machine described herein. Never use a machine tool without the supervision of a qualified instructor.

The blueprint may sometimes require that a chamfer be machined into the outside corners of the groove or that they must be deburred or polished. This is often the case if the groove is for an O-ring.

Grooves may sometimes require forming. Forming is the establishment of a geometric form into the work piece. In addition to grooving common forms are radii and angles. Angles are formed when the angle is cut using the edge of the tool to establish the angle. Angles are tooled when they are established by using the compound to turn the angle using a regular turning tool. It is a common practice to tool angles that are larger than one half an inch in length. Radii present even a bigger problem with regard to chatter. The reason being that this is the only tool that 100% of the tool radius must come in contact with the part to complete the operation. Chatter is of extreme concern.

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label: lathe gorove, grooving, cutting tool, setup, feeds and speeds, cuttting, widening, measuring, parrting cuttting off