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Q. What is Hydrostatic extrusion?
• In the hydrostatic extrusion process the billet is completely surrounded by a pressurized liquid, except where the billet contacts the die.
Fig Hydrostatic extrusion
• This process can be done hot, warm, or cold, however the temperature is limited by the stability of the fluid used.
• The process must be carried out in a sealed cylinder to contain the hydrostatic medium.
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Q. What is Indirect extrusion? In indirect extrusion, also known as backwards extrusion, the billet and container move together while the die is stationary. The die is held i
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