Research on the Deformation of Turbine Blades at Machining

作     者：Masu Yamada Keiji Sonoya Takahito Sobayashi Hiroshi Satoh Masu Yamada;Keiji Sonoya;Takahito Sobayashi;Hiroshi Satoh

作者机构：TBM Corporation Nagano Japan Department of Mechanical Systems Yamanashi University Kofu Japan Nichia Tanko Co. Ltd. Tomioka Japan Oridea Inc. Mishima Japan 

出 版 物：《Energy and Power Engineering》 (能源与动力工程（英文）)

年 卷 期：2016年第8卷第1期

页      面：1-12页

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

主　　题：Turbine Blade Machining Deformation 12Cr Steel 

摘      要：Along with the recent expansion of demand for electricity, the production of steam turbine blades has increased, and various materials forged of 12Cr ferritic heat-resistant types of steel have become widely used for this purpose. Although this material seems to be an excellent choice as heat-resistant steel, it requires a post-correction process for deformation after machining and thus lowers productivity. Therefore, we started basic experimental research, and through a series of tests, we found that 12Cr steel is a sticky material;the residual stresses after machining concentrate in the vicinity of the surface;and this influences the deformation of blades.