cone mandrel

cone mandrel

[′kōn ‚man·drəl]
(design engineering)
A mandrel in which the diameter can be changed by moving conical sleeves.
References in periodicals archive ?
Their internal surface is also smooth (without surface tears) because a cone mandrel, when it moves in opposite to growth of the billet direction, compresses crust of the solidifying metal [15].
In case, if speed of movement exceeds rate of the ingot growth, outflow of the molten metal through the formed interspace between the ingot and the cone mandrel will occur, while if speed of movement is below the rate of the ingot growth, squeezing of the mandrel by the hollow ingot will occur, and during its further movement the mould will start to tear from the ingot the metal crust that squeezes it.