Despite great advances in casting, with MMC components being produced near to their final profile, the subsequent cutting operations are of considerable economic importance. In order for these materials to be machined successfully, all the variables involved in the process, i.e. the material, the machining operation, tool, tool material and machining parameters, must be combined with each other to optimum effect. The production of axle-mounted brake discs made of the Al/SiC composite in the Berlin plant of Knorr-Bremse has shown that for the turning and boring of these workpieces PCD tools achieve the best results in terms of tool life and machining quality. In combination with medium cutting speeds (200-500 m/min) and relatively high feeds (0.2-0.7 mm/rev), economic manufacture of the abrasive and wear-resistant material can be guaranteed. In view of the great potential that this material offers for use in rail-mounted vehicles, because of its properties, this successful machining strategy is critical.
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机译：尽管在铸造方面取得了长足的进步，但MMC组件的生产接近其最终轮廓，后续的切割操作仍具有相当大的经济意义。为了成功地加工这些材料，必须将过程中涉及的所有变量（即材料，加工操作，刀具，刀具材料和加工参数）相互结合以达到最佳效果。在克诺尔-柏林（Knorr-Bremse）柏林工厂生产的由Al / SiC复合材料制成的轮轴安装式制动盘表明，对于这些工件的车削和镗孔加工，PCD工具在工具寿命和加工质量方面达到了最佳结果。结合中等的切削速度（200-500 m / min）和相对较高的进给量（0.2-0.7 mm / rev），可以保证磨料和耐磨材料的经济制造。鉴于这种材料由于其特性而具有很大的潜力，可用于轨道安装车辆，因此这种成功的加工策略至关重要。
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