Cutting Inserts and Milling Tools

Abstract

The invention relates to a cutting insert and a milling tool for milling slots in a workpiece, the milling tool comprising a plurality of cutting inserts (4) comprising an underside (11) forming a chip surface parallel to The opposite upper side (12) extending from the extension plane, and the blade side (13) between the upper side and the lower side. The cutting edge extending between the edge side and the chip surface comprises a first main cutting edge (15), a leading cutting edge (17) extending along a edge line (L) and between the first main cutting edge and the A first corner cutting edge (18) extends between the front cutting edges and connects the first main cutting edge and the front cutting edges. The first corner cutting edge has a convex shape and extends forwardly with respect to the rear portion (14) of the cutting insert from the front cutting edge to a position on the other side of an imaginary line forming The edge line is an extension of the edge line and extends tangentially to a point on the first corner cutting edge.

Description

technical field [0001] The invention relates to a cutting insert for a milling tool formed for milling a slot in a workpiece. The cutting inserts are formed for milling internal or external tooth spaces of spline joints (so-called splines), such as spline joints according to ISO14. A splined joint is a configuration for torque transmission and includes a shaft and a hub. Milling tools include slotted cutting tools and / or hobbing tools. The invention also relates to a milling tool formed for milling slots in a workpiece. Background technique [0002] During the machining of the slots of gears with working teeth or of spline joints with non-working teeth, it is generally difficult to give the so-called dedendum of the tooth space 82 between adjacent teeth 83 using the prior art. To provide the final shape, i.e., the bottom surface 81 of the tooth groove 82 of the shaft 80 of the splined joint and especially the region at the bottom of the tooth groove 82, cf. Figure 18 . ...

AI Technical Summary

Problems solved by technology

[0002] During the machining of the slots of gears with working teeth or of spline joints with non-working teeth, it is generally difficult to give the so-called dedendum of the tooth space 82 between adjacent teeth 83 using the prior art. To provide the final shape, i.e., the bottom surface 81 of the tooth groove 82 of the shaft 80 of the splined joint and especially the region at the bottom of the tooth groove 82, cf. Figure 18

This difficulty may also exist in the hub 90 of the spline joint

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