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Several-Stage Tool-Path Scheduling in 5-Axis Roughing of Impeller
Yu Yuan,Yun Min,Wang Xiaochun
(School of Mechanical Engineering,Xi'an Jiaotong University,Xi'an 710049,China)
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Abstract: A tool-path scheduling methodology for 5-axis roughing of impellers is presented. Hogging method is a pre-processing for impleller's slot enlarging machining and is used in local area where thick stack needs to be removed. The smaller cutter is then utilized for the impeller roughing. Since there exists an uncertainty of tool size in each hogging stage, the tool size combination is determined according to the minimum of total machining time. This algorithm has been successfully used in home-developed Impeller CAM software.
Keywords: impeller;tool-path scheduling;interference detection;optimal tool selection