Current-assisted TiAl alloy temperature-stress plasticizing forging device and forming method

• Main Authors: HU ZHILI, HUA LIN, ZHANG JIAHENG
• Format: Patent
• Language: Chinese; English
• Published: 28.05.2024
• Subjects: CONTROLLING; FORGE FURNACES; FORGING; HAMMERING; MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PHYSICS; PRESSING METAL; PUNCHING METAL; REGULATING; RIVETING; SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES; TRANSPORTING

The invention discloses a current-assisted TiAl alloy temperature-stress plasticizing forging device which comprises an upper die, a lower die and a power source. The TiAl blank is placed in the metal sleeve after being wrapped with the heat insulation material; the metal sleeve is arranged in a cavity between the upper die and the lower die; the two ends of the power source are tightly connected with the two ends of the metal sleeve correspondingly, pre-compression is applied to the metal sleeve, and the TiAl blank and the metal sleeve generate the heat effect. The invention further provides a current-assisted TiAl alloy temperature-stress plasticizing forging forming method. According to the method, the TiAl blank and the metal sleeve are subjected to resistance heating through the current, so that the strength of the metal sleeve is larger than that of the internal TiAl blank, the metal sleeve provides three-way pressure stress for the TiAl blank, the plasticity of the TiAl alloy is improved, the cracking