| 释义 |
man·drel
I. noun
also man·dril \ˈmandrə̇l\
(-s)
Etymology: probably modification of French mandrin
1. Britain : a miner's pick
2.
a. : a usually tapered or cylindrical axle, spindle, or arbor that is inserted into a hole in a piece of work so as to support the work during machining
b. : a metal bar that serves as a core around which metal or other material may be cast, molded, forged, bent, or otherwise shaped
3. : any of a train of jointed units intended to be pulled through an underground duct as each joint is made to ensure perfect alignment or through a steel pipe in process of welding to ensure a smooth interior
4. : the shaft and bearings on which a tool (as a dental grinding disk or circular saw) is mounted
5. : a temporary interior support for a thin-walled tube (as a tubular steel pile to be filled later with concrete) being driven into something
II. transitive verb
(-ed/-ing/-s)
: to turn with a mandrel |