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

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.

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.

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light-gauge metal shell during a pile-driving operation; takes the impact of the pile hammer during driving and is then withdrawn before concrete is placed in the shell; also called a pile core. 2.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.
References in periodicals archive ?
c] is the critical voltage in kV, H is the distance between the tip of the capillary needle and the collecting mandrel in cm, L is the length of the capillary needle in cm, R is the radius of the flow channel in cm, and [gamma] is the surface tension of the fluid in dynes [cm.
Using immovable cooled mandrels the ingots are produced with cavities of even bigger diameter.
With the CRC-Evans Pneumatic self-centering, wedge-type mandrel, no time was wasted.
The mandrels are split at the stabilizer centerline to facilitate extraction after molding.
The thick-walled hollow body, with a cylindrical mandrel inside it, is guided towards the pilger rolls.
The technology--the vacuum-steam-vacuum (VSV) process--involves using equipment that includes a mandrel to apply vacuum and steam to a product.
The major component was the gearmotor supporting the mandrel.
In this investigation, a number of composites were fabricated using different mandrel materials that served as moisture sources for carbamate formation during the cure process.
A line of medical-grade, precision polytetrafluoroethylene (PTFE)coated stainless steel or nitinol-forming mandrels used to make stent delivery systems is available from Applied Plastics Co.
BEX's largest hybrid die so far is for 800-mm, four-layer pipe, using its special VSI spiral-mandrel/lattice-basket die for the HMW-PE core and three spiral mandrels for layers of PP coatings.
Boeing is adapting the technique to produce fuselage sections on specially designed mandrels assembled with slats of Invar, an iron-nickel alloy with low thermal-distortion properties that maintains profile tolerances to thousandths of an inch.
CRC-Evans was named to provide pipe bending machines with sets and mandrels from Larsen & Troubo, Gammon and Essar companies.