#1: Impressions of the broaching process Broaching is a traditional production method used in machining technology. MTU uses external broaching, in which a broaching tool is drawn along a workpiece in a single linear motion. This notches the edge of turbine disks, where the feet of the blades will be attached later on. These notches look like little Christmas trees. Especially in the latest engine generations, they are among the hardest-wearing parts of the component. Creating these complex geom

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