mandrel

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mandrel

, mandril
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. Brit a miner's pick
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Mandrel

 

an attachment on metalcutting machine tools for securing products to be worked or cutting tools with center holes. The simplest mandrels consist of a rod with center holes for attachment between the centers of a machine tool or a rod with a cone corresponding to the conical opening in the arbor of a machine tool. Various expanding mandrels are frequently also used.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

mandrel

[′man·drəl]
(engineering)
The core around which continuous strands of impregnated reinforcement materials are wound to fabricate hollow objects made of composite materials.
(mechanical engineering)
A shaft inserted through a hole in a component to support the work during machining.
(metallurgy)
A metal bar serving as a core around which other metals are cast, forged, or extruded, forming a true central hole.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

mandrel, mandril

1. A temporary internal support for a light-gauge metal shell during a pile-driving operation; takes the impact of the pile hammer during driving and is then withdrawn before concrete is placed in the shell; also called a pile core. 2. A cylindrical bar or spindle, used chiefly as a support during machining or forming operations.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.