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Definitions (334)
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chip breaker
A small groove ground back of the cutting edge on the top of a cutting tool to keep the chips short.
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die stock
The frame and two handles (bars) which hold the dies (chasers) used for cutting (chasing) external screw threads.
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spindle speed
The RPM at which a machine is set. See cutting speed.
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tailstock
That part of a machine tool. such as a lathe or cylindrical grinder which supports the end of a workpiece with a center. It may be positioned at any point along the way of the bed, and may be offset f [..]
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abrasive natural
(sandstone, emery, corundum. diamonds) or artificial (silicon carbide, aluminum oxide) material used for making grinding wheels, sandpaper, abrasive cloth, and lapping compounds. abrasive wheels
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accurate
Conforms to a standard or tolerance.
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acme thread
A screw thread having a 29 degree included angle. Used largely for feed and adjusting screws on machine tools.
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acute angle
An angle that is less than 90 degrees.
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adapter
A tool holding device for fitting together various types or sizes of cutting tools to make them interchangeable on different machines.
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addendum
That portion of a gear tooth that extends from the pitch circle to the outside diameter. align - To adjust or set to a line or center.
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