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Isothermal forging , near isothermal forging mold-making technology.
Figure 2 Isothermal forging is one of the process of near-net-shape forgings, it makes the forgings with complete flow line, and uniform and small organizations . It has better repeatability and it can be automatically controlled by computer , it reflect excellent stability and coherence of metallurgical quality in mass production , compared with traditional forging process . The titanium superalloy compressor disk in the foreign advanced aeroengine and transformative superalloy disk are
80% made by isothermal forging process . Powder superalloy turbo disk is made by isothermal forging process by the protection of vacuum argon
(Ar) and the superplasticity of molybdenum alloy die . The titanium superalloy compressor disk in the foreign advanced aeroengine and transformative superalloy disk are 80% made by isothermal forging process .Powder superalloy turbo disk is made by isothermal forging process by the protection of vacuum argon
(Ar) and the superplasticity of molybdenum alloy die .For example : The engine of American GE company , PWA company and British R-R company .The isothermal forging application of domestic aeroengine titanium alloy compressor forging and the airplane structures began at the 90’s of 20 century
, but the powder disk isothermal forging can not be done due to the lack of mold material which can stand 1100℃, and also the lack of equipment , especially the technology of mold making , this finally prevent the development of the application of the isothermal forging . We cooperate with Beijing institute of aeronautical material
(BIAM), we rely on their technology and equipment , studied the technology of isothermal forging mold making technology , adopt vacuum investment precision casting and invented new mold alloy which is capable of 1100℃,σb is 480 Mpa ( 2 patented technology ) , Achieved the successful application of superpalsticity isothermal forging and near isothermal forging under the standard atmosphere pressure . It is a new technology compared to the foreign vaccum Ar protected molybdenum alloy die Superplasticity isothermal forging .Now we are capable of making complex cavity mold with φ1400mm and weight over 1.5 ton . See figure 1 . In the meantime the N3 new alloy can not only meet the requirement of 1100-1150 ℃ but also as the outstanding material which extend the service life of the mold at temperature of 800-1050 ℃, see figure 2 . We Look forward to make all kinds of isothermal forging mold for you .
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