Machining Tool for Machining and Method for Cutting a Component Made of Fiber-Reinforced Plastics

摘要

A face cutter for machining fibre-reinforced materials such as carbon-fibre-reinforced plastics, glass-fibre-reinforced plastics or plastics reinforced with polyester threads is provided which includes main flutes, which form with trailing premachining lands a cutting wedges with premachining cutting edges, and auxiliary flutes, the number of which corresponds to a number of the main flutes, each trail one of the main flutes in the peripheral sense, each distance in the peripheral sense a postmachining land from the pre-machining land leading in the peripheral sense, and form with the postmachining land a cutting wedge with a postmachining cutting edge. The premachining cutting edges extend alternately with left-hand twist about and untwisted along the tool axis, the postmachining cutting edges trailing the left-hand twisted premachining cutting edges extend untwisted along the tool axis, and the postmachining cutting edges trailing the untwisted premachining cutting edges extend with a left-hand twist about the tool axis.

主权项

1. A machining tool, in particular an end milling cutter for machining fiber reinforced materials such as carbon-fiber-reinforced plastics, glass-fiber-reinforced plastics or plastics reinforced with polyester threads, comprising:
a plurality of at least four main flutes, each of which forms with a respective trailing premachining land a cutting wedge with a premachining cutting edge; a plurality of auxiliary flutes a number of which corresponds to a number of the main flutes, wherein each of the plurality of auxiliary flutes:
trails a respective one of the plurality of main flutescircumferentially spaces a postmachining land off the premachining land leading in the circumferential direction, andforms with the postmachining land a cutting wedge having a postmachining cutting edge, wherein the premachining cutting edges extend alternately on the one hand around the tool axis with a left-hand twist and on the other hand along the tool axis untwisted or at least with a twist being in absolute value smaller than the left-hand twist of the directly leading premachining cutting edge, wherein the postmachining cutting edges trailing the left-hand twisted premachining cutting edges extend untwisted along the tool axis or at least with a twist being in absolute value smaller than the left-hand twist of the directly leading premachining cutting edge, and wherein those postmachining cutting edges extend with a left-hand twist around the tool axis, which are trailing the untwisted premachining cutting edges or trailing the premachining cutting edges, which extend at least with a twist being in absolute value smaller than the left-hand twist of the directly leading premachining cutting edge.