forward extrusion

forward extrusion

[¦fȯr·wərd ik′strü·zhən]
(metallurgy)
A cold extrusion process in which a formed blank is placed in a die cavity and struck by a punch; the metal is extruded through an annular space between the die and the end of the punch, moving in the same direction as the punch.
References in periodicals archive ?
Stable Micro Systems' forward extrusion cell measures the compression force required for a piston disc to penetrate the yoghurt and extrude it through an outlet in the base of a sample container.
The usual forming stages are: reducing, forward extrusion, backward extrusion, upset, and trimming and piercing.
For example, if the simultaneous forward and backward extrusions do not go well in the third stage, the forward extrusion can be left in the third stage, and the backward extrusion can be done in the fourth stage.
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