Pulse current assisted extrusion forming device and extrusion forming method

[0020] Specific embodiment one: combination figure 1 To illustrate this embodiment, the device of this embodiment includes a high-frequency pulse power supply 7, a furnace body 9, a vacuum system 10, a pressurizing device, and a mold; the vacuum system 10 is connected to the inner cavity of the furnace body 9, and the mold is made of an insulating outer film 2. , The conductive convex mold 3 and the conductive concave mold 4, the pressure device is composed of an upper indenter 6 and a lower indenter 8, the lower end of the upper indenter 6 is set in the upper part of the furnace body 9, and the lower indenter 8 is set in the furnace body In the lower part of 9, the lower end of the conductive concave mold 4 is set on the upper end surface of the lower indenter 8, the upper end of the conductive convex mold 3 is connected with the lower end surface of the upper indenter 6, and the conductive concave mold 4 is placed in the cavity of the insulating outer film 2. Among them, the conductive convex mold 3 and the conductive concave mold 4 are connected to the high-frequency pulse power source 7 as electrodes. The conductive convex mold 3 is the upper electrode, and the conductive concave mold 4 is the lower electrode. The high-frequency pulse power source 7, the conductive convex mold 3, the conductive concave mold 4, and the blank 5 to be formed form an electric circuit.

[0021] Specific implementation manner two: combination figure 1 To explain this embodiment, the insulating outer film 2 of this embodiment is made of ceramic material, and the outer mold of the insulating ceramic material does not shunt the current flowing through the blank to be formed, thereby reducing energy loss. Other components and connection modes are the same as the first embodiment.

[0022] Specific implementation mode three: combination figure 1 To explain this embodiment, the extrusion molding device of this embodiment further includes a far-infrared thermometer 1, the infrared thermometer 1 is provided with a probe 1-1, and the probe 1-1 is arranged in the furnace body 9. The temperature of the blank to be formed is measured in real time by a far infrared thermometer. Other components and connection modes are the same as those in the first or second embodiment.