Manufacturing method of large size thin-walled titanium alloy cylindrical part and cylindrical mould

• Main Authors: WANG LIANG, LANG ZEBAO
• Format: Patent
• Language: Chinese; English
• Published: 02.03.2011
• Subjects: CASTING; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; PERFORMING OPERATIONS; POWDER METALLURGY; TRANSPORTING; WORKING METALLIC POWDER

The invention provides a manufacturing method of a large size thin-walled titanium alloy cylindrical part, comprising the steps of: (1) raw material powder selection; (2) powder loading and encapsulation; (3) hot isostatic pressing; and (4) cylindrical part blank processing. The invention also provides a cylindrical mould used for manufacturing the large size thin-walled titanium alloy cylindricalpart, comprising a cylindrical outer sheath and a cylindrical inner sheath. A cavity for loading titanium alloy powder is formed by the outer sheath and the inner sheath, and the inner sheath is internally provided with a cylindrical shaped mould; an upper sheath cover and a lower sheath cover for encapsulating the cavity are respectively fixed at the top end and the bottom end of the cavity forloading titanium alloy powder; and the upper sheath cover is also provided with a gas removing pipe. Different from a plurality of traditional manufacturing methods, the invention can simultaneously meet the requirements of hi