A pulse current assisted hot pressing forming is designed to solve the problem of low accuracy of cold forming and high cost of heat forming machine. In this paper

the influence of pulse current assisted hot pressing process on defects

dimensional accuracy and mechanical property of TC1 titanium alloy U-shaped parts was studied. The results show that the pulse current heating can improve the forming efficiency. When the pulse current density is 9.2A /mm2 and the closing speed is 15mm/s

the heat loss in the forming process is compensated

the titanium alloy sheet metal parts are kept in a good forming temperature range and the forming limit is increased. During the forming process

with the rise of forming pressure

holding time and mould preheating temperature

the dimensional accuracy of the parts is gradually improved. When the shape pressure is 10t

holding time is 10s and the mould is not preheated

the dimensional accuracy of the parts reaches ±0.2mm. The grain size of the part after pulse current assisted hot pressing is smaller than that of the hot forming machine

and the mechanical property is better.