mandrel

American  

[man-druhl] / ˈmæn drəl /

Or mandril

noun

Machinery.

1. a shaft or bar the end of which is inserted into a workpiece to hold it during machining.

2. a spindle on which a circular saw or grinding wheel rotates.

3. the driving spindle in the headstock of a lathe.

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mandrel British  

/ ˈmændrəl /

noun

1. a spindle on which a workpiece is supported during machining operations

2. a shaft or arbor on which a machining tool is mounted

3. the driving spindle in the headstock of a lathe

4. a miner's pick

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Etymology

Origin of mandrel

1510–20; perhaps akin to French mandrin

Example Sentences

The scientists followed up in the commercial facilities and learned that the carton-forming mandrels -- those machinery parts that open the small, flat-lying, single-serving carton in the filling process -- needed more attention and cleaning.

From Science Daily

This operation is done quite rapidly with a pneumatic gun, hence the two-part "ker-bang" noise as the mandrel is pulled through the rivet, then breaks off with a bang to complete the job.

From BBC

He uses only his hands, cast-iron mandrels, wood patterns, lathes and other machinery inherited from his grandfather.

From Reuters

A bit of the wire of proper length is first doubled and then by a special contrivance the two ends are bent around a mandrel so as to form an insertion point or loop.

From Project Gutenberg

With the last of these mandrels in the hole the hub was drawn out to length and diameter, leaving the forging roughly shaped, but having the form shown in Fig.

From Project Gutenberg