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US 11,253,901 B2Granted
Indirect electrohydraulic press forming tool, device and method
AssigneeAdm28 S.àR.L
InventorsGilles Avrillaud, Eric Mandel
Life of this patent
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Abstract
An indirect electrohydraulic draw-forming tool includes a body having a tubular cylindrical area, a chamber intended to be filled with a liquid, two electrodes, each of the electrodes having a portion arranged in the chamber, a punch. The tool also includes a piston mounted so as to slide in a sealed manner within the cylindrical area and sealingly defining the chamber. Moreover, the punch is carried by the piston on a face thereof that is opposite to the chamber.
Claims8
A tool for indirect electrohydraulic draw-forming, the tool comprising:
- a body having a tubular cylindrical area;
- a chamber formed in the body and configured to be filled with a liquid;
- two electrodes, each of the electrodes having a portion arranged in, or at least partially defining, the chamber;
- a punch;
- a piston mounted so as to slide in a sealed manner within the cylindrical area and sealingly define the chamber;
- wherein the punch is carried by the piston on a face thereof that is opposite to the chamber;
- and
- a pump for placing the liquid of the chamber under pressure,
- wherein the pump is configured to place the liquid in the chamber under quasi-static pressure and to initiate movement of the piston so that the punch is able to press against a blank of material with sufficient quasi-static force to stamp the blank of material.
6 more elements
Dependencies are inferred from the claim text.