Water Reactor Safety Info Meeting Vol 1 [22nd, transactions]

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Int J Adv Manuf Technol 14:795–805 17. Warkentin A, Ismail F, Bedi S (2000) Multi point tool position strategy for 5-axis machining of sculptured surfaces. Comput Aided Geom Des 17(1):83–100 18. Lee JJ, Suh SH (1998) Interference-free tool-path planning for flank milling of twisted ruled surfaces. Int J Adv Manuf Technol 14:795–805 19. Yown JW, Jun Y, Park S (2003) Interference-free tool path generation in 5-axis machining of a marine propeller. Int J Prod Res 41:4383–4402 20. Lauwers B, Kiswanto G, Kruth JP, Leuven KU (2003) Development of a 5-axis milling tool path generation algorithm based on Faceted models.

The various authors of these iterative methods seek a trade-off between positioning effectiveness and speed in obtaining the result. No attempt is made to rank the methods introduced below as they would all have to be implemented on the same computer to compare calculation times, with the error being calculated using Eq. 17. The method developed in [18] is established for roughing and finishing of ruled surfaces. It can be applied to both cylindrical and conical cutters. The study is conducted iteratively and covers use of the cutter’s envelope surface.

Finally, as this strategy leads to a significant undercut error, it is suggested that the surface be milled in several passes breaking down the ruled surface into several ruled surfaces. This study proposes an exact evaluation of error but has an adverse effect on computation time. 5Þ by a distance d before a rotation of angle h about the same axis is finally performed (Fig. 22). For a set of couples (h; d), cutter positioning is evaluated using a performance n   P du;i À R with du;i the set of distances between n points of the cutter index Iu ¼ i¼1 axis and the surface Sðu; vÞ: The positioning retained will be that which gives the smallest value for the performance index Iu : For each value h tested, the distance d minimising error is calculated.

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