Design Method of Turbine Fir–Tree Blade Root Tenon Slot Broach

Abstract:

This paper studied the key issues of the broach structure design of turbine fir-tree blade root tenon slot, based on the analysis technical requirements of groove surface and the total margin. According to the principles of rough broach efficient, high precision broach qualitative to determine broaching method and broaching margin distribution. It proposed broaching methods of surface processing, broaching margin distribution and geometric parameters.

• Periodical: Advanced Materials Research (Volume 305)
• Pages: 177-180
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.305.177
• Online since: July 2011
• Authors: Bin Wang, Na Jun Wang, Sheng Li Sun, De Qiang Zhu
• Keywords: Broach Design, Design Method, Tenon Slot Manufacturing

References

[1] Baoshan Yuan. ModernTechnologies for Processing Large Steam Turbine. Power Equipment. 2001, 42(5), pp.11-15. (In Chinese).

[2] R. Pigott, R.E. Warmer: Steam Turbine Blade Development. 2004, pp.30-33.

[3] S. Engin,Y. Altinta.: Mechanics and Dynamics of General Milling Cutters. IntJ Mach Tools Manufact. 2001, (41), pp.2195-2212.

[4] Hai Zhao: Structure design method research of tenon slot. Nanjing University of Aeronautics and Astronautics. 2005, pp.1-2 (In Chinese).

[5] M.H. Tran: Recent Developments in blading to improve Turbine Efficiency. 2003, (23): P30-36.

[6] Shujuan Wei, Huiting Lang, Li Wang: Nickel alloy blade fir-tree blade root processing. Turbine Technology. 2002, 44(2), pp.127-128. (In Chinese).