SU396265A1 - DISK TOOL WITH INTERMITTENT DIAMOND-LAYER | PIT ^ -Nm ^ O '-; ivivlis - Google Patents

Description

one

The invention relates to abrasive tools and can be used to process products made of brittle materials during flat grinding.

By bus. St. No. 317497 is known a disk tool with a discontinuous diamond layer, including a body with cutting elements fixed on it, the front part of the working surface of which is made in a direction smaller than the rear, with a size determined by the relationship:

/

(601 / 0-1 „-9„ -Sin,),

D,

60U „

e DI is the diameter at which the front part of the working surface of the element, MM, is located, MM,

D is the outer diameter of the tool, mm;

PP - circumferential speed, mm / s;

Vn - longitudinal feed, mm / min;

Fp - the central angle of the inter-element groove;

F /, is the central angle of the area of the tool that is in contact with the material being processed. The proposed tool differs from the known one in that the working surface of the cutting elements is made in an Archimedes spiral.

This ensures the reduction of chipped edges when grinding parts from brittle materials.

FIG. 1 shows the profile of the working surface of the ram of the disc element of the disk tool before editing on the periphery; in fig. 2 -

the same, after editing on the periphery.

The profile of the working surface of the cutting element is outlined by the spiral Archimedes O-1-2 (Fig. 1) or another curve that is close in profile to it. The magnitude / C of the helix drop on

the cutting element should exceed the amount of cutting off the part per pass. The shape of the hollow O-3 (Fig. 1) is arbitrary. A cylindrical section is allowed on the working surface of the cutting element.

2-4 (Fig. 2), formed by editing the tool.

Cutting is carried out only by the helix-2 section (Fig. 1). The remainder of the O-1 helix is provided to preserve the principle

work after wear and morality of the circle.

Subject invention

Disc tool with a continuous diamond layer on ed. St. No. 317497, distinguished by the fact that, in order to reduce chipped edges when grinding parts from fragile

materials, the working surface of the cutting elements is made of Archimedes spiral.