Study on Technology Parameters for Coated Carbide Cutting Tools

Abstract

Metal cutting processing is the most fundamental, most widely and the most important processing in industrial production. Because the development of mechanical manufacturing level plays a very important role in the coating technology material machining process. A coated carbide cutting tool with its high hardness and high wear resistance, good chemical stability and extensive compatibility characteristics, is widely applied in the metal cutting processing field. The author mainly studies the cutting force contrast between coated carbide cutting tools and not coated ones. Cutting tests have testified that if PVD technology applied on cutting, the cutting force of hard alloy cutter will alter with the change of feeds (f), depth of cutting (ap) and cutting velocity (v). The experiment suggests that the size of three-way cutting force of either the brand ZP25 hard alloy cutter or the carbide cutter by employing matrix ZP25 hard alloy cutter to respectively using PVD technology coat TiN or TiCN coating is successively FZP25>FTiCN>FTiN. The main reason for this is that the difference of frictional factor of the three kinds of cutter material and the workpiece material.

Justification of the Disk Tool Application for Working Bodies of Mining Machines

“…Now a rock-cutting tool has become widely spread to equip working bodies of shearers, tunnelling and drilling machines [1][2][3][4][5]. An important index that characterizes the efficiency of the tunnelling machines is the application of a cutting tool, since it affects the cost of mining and the productivity of the machine, because to replace the worn working tool it is necessary to stop the machine, which reduces the machine readiness factor.…”

“…Improvement of working bodies of tunnelling machines and shearers and also drilling machines at a rational combination, cutters [1][2][3][4][5] and disk tools [6][7][8][9][10][11][12][13][14][15][16][17][18][19] fixation and arrangement is a multipurpose task to implement the principle of coal destruction and solid rocks with large cleavage. At the same time, a disk tool can combine different design and geometric parameters, that allow to expand the application of tunnelling machines within the mechanical method of destruction of solid and abrasive rocks.…”

Unitized Attachment Points of a Disk Tool for the Working Bodies of Shearers and Tunnelling Machines

“…Numerous national [1][2][3][4][5][6][7] and foreign researches [8][9][10][11][12][13][14] as well as application experience of a disk tool for working bodies of shearers [4][5][6][7] and tunnelling machines [1][2][3][8][9][10][11][12][13][14] show that it is perspective and, in some cases, competitive to the cutting tool application [15][16][17][18][19]. In the researchers conducted by scientists of the Department of Mining Machines and Complexes of T.F.…”