JPS5898104U - Throwaway tip - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an example of a conventional indexable chip having a chip breaker groove. 2 and 3 are enlarged cross-sectional views taken along lines AA and BB in FIG. 1, respectively. Figure 4 approximately shows the chip ejection direction when the depth of cut d2 is small and when dl is large, where the C direction is the ejection direction when d2 and the d direction is the ejection direction when d machining. . Note that the C direction is the direction of the feeding movement. Figure 5' shows B-B in Figure 1 when the depth of cut is small with the conventional slow-roller insert in Figure 1.
FIG. FIG. 6 is a top view of an indexable tip showing an example of the present invention, and FIGS. 7, 8, and 9 are enlarged cross-sectional views taken along lines A-A, B-B, and CC in FIG. 6, respectively. It is. FIG. 10 is an enlarged cross-sectional view showing the chip discharge state of the indexable insert of the present invention in comparison with FIG. 5. FIG. Note that ■ indicates the work material, and @ indicates the indexable tip.

Claims (2)

[Scope of utility model registration request] (1) An indexable insert having a chip breaker groove, which has a plurality of inclined cylindrical ridges protruding into the chip breaker groove from the central land portion adjacent to the chip breaker groove toward the outer cutting edge. Throwaway tip. (2) In an indexable insert having a chip breaker groove, a plurality of cylindrical portions protrude into the chip breaker groove from the central land portion adjacent to the chip breaker groove toward the outer cutting edge. and an indexable tip tilted in the range of 10° to 50'.