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Milling of Fir-Tree Slots in Allvac 718 plus

机译:在AllVac 718 Plus中铣削杉木树插槽

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For the machining of profiled grooves in turbine discs made out of nickel based alloys,broaching is still state of the art However,the broaching process entails some disadvantages like high costs and long delivery times for the machine tools and the broaches in combination with inflexibility with regard to the groove geometry and machining task.An alternative to the broaching process is the integration of the profile slotting on a 5-axis milling center This paper deals with an approach for machining a fir-tree slot via different milling process chains.The two roughing strategies,ceramic side milling and carbide end milling,are depicted with regard to tool wear and the economy.The finished fir-tree slot will be evaluated in terms of dimensional stability In addition,the possibility of finish broaching on a five-axis machine tool is shown.
机译:为了加工由镍基合金制成的涡轮盘的加工,拉削仍然是领域的状态,但是,拉削过程需要一些缺点,如高成本和机床的长期交货时间,以及与粘合性相结合关于沟槽几何形状和加工任务。替代拉削过程是在5轴铣削中心上的轮廓槽的整合本文涉及通过不同的铣削过程链加工杉木树槽的方法。两者粗加工策略,陶瓷侧研磨和硬质合金端铣削,用于刀具磨损和经济。在尺寸稳定性方面,完成的枞树槽之后,还可以在五轴机器上完成拉削的可能性工具显示。

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