Path Planning for Circular Cutter Envelop Milling of Steam Turbine Blade

Abstract:

In order to solve the problem of poor steam turbine blade processing efficiency, and on the basis of analyzing the turbine blade surface and the existing processing methods, a model of circular cutter turbine blade machining is built. By comparing the tool paths of horizontal and vertical section envelope machining, choosing quasi-vertical cross section envelope machining method and utilizing the original datum and NURBS surface matching mathematic methods, this paper provides an algorithm of residual height calculating, and based on this, the tool path can be planned. Datum show that, the tool path of circular cutter machining blades is much longer than the tool path of ball-end cutter envelop milling machining blades, and the machining efficiency is also highly enhanced.

• Periodical: Advanced Materials Research (Volumes 989-994)
• Pages: 2908-2912
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.989-994.2908
• Online since: July 2014
• Authors: Jian Jun Wang*, Ke Wang, Qiong Wu
• Keywords: Circular Cutter, Cutter Contact, Envelope Machining, Residual Height, Steam Turbine Blade, Surface Reconstruction, Tool Path

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