Forging research of large-angle basin-shaped TC6 titanium alloy
A near net shape forging scheme of large angle and basin-shaped forgings by using the cake blank+free-die forming was introduced,meanwhile the scheme has been verified by simula-tion and production.The test results showed that for the large angle and basin-shaped forgings,the near-net-shape forming method of cake blank+free-die forming could obtain the forging with streamline and good microstructure and properties.Inspection results were followed:no defects and clear crystals were found in the forgings,the streamline was distributed along the forgings'shape,and there was no cross-flow and eddy current.The high-magnification microstructure was typical equiaxed structure,the primary α phase was distributed uniformly on the β-phase matrix,the content of primary α phase was about 40%,the grains were fine and uniform,and the testing re-sults of all properties met the requirements and there was a certain amount of surplus.The produc-tion verification of the scheme opened up a new production mode of TC6 large-scale basin-shaped parts,which could not only ensure product quality,but also fully tap the production capaci-ty of equipment and create greater economic benefits.