SU1510992A1 - Cutting bit - Google Patents

Abstract

The invention relates to the field of metalworking, namely to interchangeable cutting plates for collecting tools. The purpose of the invention is to increase the durability and improve chip breaking by making the plate two-sided with chip breakers. The cutting plate contains a metal substrate 1 with superhard material 2 deposited on it and coaxially identical protrusions 3 made in the shape of a truncated pyramid with side edges 4. The number of faces 4 is equal to the number of re-installations of the plate. The insert is installed in the tool pocket. One of the protrusions of the substrate is positioned with side edges in a tool-shaped socket, and the other protrusion located on the opposite side of the substrate performs the function of a chipbreaker. When the cutting edge on one side of the plate breaks out, the last one is turned over and re-installed with the second protrusion in the tool housing slot. In this case, the protrusions vary in function. 4 il.

Description

h

hedgehog

 co ic

The invention relates to metalworking, namely to interchangeable cutting plates for collecting tools.

. The purpose of the invention is to increase the rigidity and and improve chip breaking by making the plate double sided, provided with chip forming ledges.

Fig. 1 shows a cutting plate, side view; FIG. 2 is a view A of FIG. one; in fig. 3 shows an embodiment of the plate; in fig. 4 is a diagram of the installation plate in the cutter.

The cutting plate contains a metal substrate 1 with superhard material 2 deposited on it and axial identical protrusions 3, made in the shape of a truncated pyramid with side edges 4. The number of faces 4 is equal to the number of plate re-installations.

, FIG. Figure 2 shows an embodiment of a cutting insert, in which superhard material 2 is sintered with a peripheral part of the base on opposite sides of the substrate 1. In FIG. 3 shows a plate in which the superhard material 2 is sintered on the lateral cylindrical surface of the substrate 1.

The insert is installed in the socket 5 of the tool 6.

One of the protrusions 3 of the substrate 1 is positioned by the side faces 4 in the corresponding nest 5 of the tool 6, and the other protrusion 3 located on the opposite side of the substrate 1 performs the role of a chip. In the process of cutting after blunting the area

The cutting edge that is involved in the cutting process is re-installed in tool slot 5. When the entire cutting edge on one side of the plate breaks out, the last plate is turned over and re-installed with the second protrusion 3 in the slot 5. At the same time, the projections 3 change in function. In addition to the shown design features of the plate, projections (spikes, spheres) or recesses (holes, blind holes and through holes) for fastening can also be made in the substrate 1. Due to the design features of the cutting plate, the latter provides a doubled full period of durability, reinstalling the plate (when the part of the cutting edge is triggered) by the calculated angle instead of its visual reinstallation. At the same time, due to the coaxiality and identity of the protrusions, each of them can either be installed in the tool socket or perform the functions of a mating chip.

Claims (1)

The formula is invented, and .. . A cutting plate containing a metal substrate and superhard material deposited on it, moreover, a pyramid-shaped protrusion is made on the substrate, which, in order to increase durability and chip formation, a second projection, coaxial and identical, the first, and the faces of the protrusions are located at some distance from the cutting edges. Compiled by V.Zolotev Editor N.Gorvat Tehred M.Hodanich Proofreader A.Obruchar Order 5842/14 Circulation 831 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5 Production and Publishing Combine Patent, Uzhgorod, st. Gagarin, 101 Subscription