Forward and Backward Extrusion Composite Forming Method Using Mould Having Open Inner Cavity
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United States of America
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Jan 9, 2020
app pub date -
Feb 13, 2019
filing date -
Feb 13, 2019
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Abstract
The present invention discloses a forward and backward extrusion composite forming method using a mould having an open inner cavity, including the following steps: (1) the structural design and assembly of the forward and backward extrusion composite mould having the open inner cavity; (2) the preparation of the initial billet; and (3) forward and backward extrusion composite forming. The present invention can greatly improve the length-diameter ratio of the blind hole and is widely used in alloy steel, aluminum alloy, magnesium alloy, copper alloy and other components.
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