Study On Abrasive Belt Grinding Mechanism For Turbine Blade Material

Blades are the key parts of the gas turbine. The material used for making blades has many temperature excellent performances such as high intensity, corrosion resistance and resistant. In the 1930's, many countries began to use the stainless steel with to manufacture gas turbine blades, however, with the development of manufacturing technology, more and more manufacturers began to use sclerotic marten stainless steel as the material of gas turbine blades. Titanium alloy was used to made blades if there were some special requirements. Coated abrasive belt grinding, as an important branch of grinding technology, has many excellent performances, like high efficiency, little vibration and low temperature, and it is widely used in the grinding, lapping and polishing of many kinds of metal and nonmetal material.(1)The paper take the 2Cr13 typical blades material as research object, thoroughly developed the performance of coated abrasive belt grinding of difficult grinded the material such as 2Cr13.Firstly, the domestic and foreign research actualities were collected and concluded. The grind ability of some typical material was analyzed in this thesis. On the basis of our former research, the abrasive belt grinding process was studied after designing the belt-grinding device and coolant system. Considering the machining requirements of gas turbine blades surface, some main evaluating indicators of abrasive belt grind ability were brought forward.Secondly, the experiments of 2Cr13 typical material were finished, record the grinding force and shear force during grinding with the aid of dynamometer, and studied the relationships between them and grinding parameters.At last, analyzed the surface roughness with the aid of the rough meter and studied the relationships of surface roughness, belt wear and grinding parameters, species of abrasive with the orthogonal experiment and the single factor experiment method.(2)Do some research and analysis of the relevant Belt Grinder leaves parameters, So that we get the abrasive belt grinding machine of freedom degree, the equation of motion parameters and working space.