Study On Surface Quality Of The Material 0Cr17Ni4Cu4Nb Gas Turbine Blade Ground By Coated Abrasive Belt

0Cr17Ni4Cu4Nb steel that has nice performance is used to manufacture gas turbine blade. The gas turbine blade is the heart of gas turbine. As the key part of gas turbine, gas turbine blade will affect the running of gas turbines. So the surface quality of gas turbine blade is very important, it will affect the yield stress,wearing capacity,rigidity and so on. And people have used abrasive belt grind turbines for many years, but it has not made an embedded research on the surface quality of the material gas turbine blade ground by coated abrasive belt. So it is necessary to study the surface quality of 0Cr17Ni4Cu4Nb gas turbine blade ground by abrasive belt. This will improve the technology of gas turbine blade and abrasive belt grinding, and direct actual manufacturing.The main efforts of this paper follow:①The grinding lines of surface is very clear and perfect, when we use abrasive belt grind 0Cr17Ni4Cu4Nb steel. There is no bur on the surface of 0Cr17Ni4Cu4Nb steel. But there is a crack on the surface of 0Cr17Ni4Cu4Nb steel.②In all the grinding parameters, the influence that the belt granularity make on roughness is greater than workpiece speed,hardness of contract wheel and belt speed. The bigger the granularity of abrasive belt, the larger the roughness. The more rapid the abrasive belt speed, the smaller the roughness. The greater the rigidity of contact wheel, the larger the roughness. The more rapid the feeding speed, the larger the roughness.③The greater the grinding depth, the larger the remaining press stress of 0Cr17Ni4Cu4Nb steel when using 36# belt, but when it gets to a certain grinding depth, the remaining press stress will minish. The greater the grinding depth, the larger the remaining press stress when using 400# belt, but the remaining press stress using 36# belt is larger than the remaining press stress using 400# belt.④The greater the grinding depth, the larger the hardness of 0Cr17Ni4Cu4Nb steel when using 36# belt, but when it gets to a certain grinding depth, the hardness will minish. The greater the grinding depth, the larger the hardness when using 400# belt, but the hardness stress using 36# belt is larger than the hardness using 400# belt.⑤The micro-organization of 0Cr17Ni4Cu4Nb steel do not change after grinding .