OBRABOTKAMETALLOV MATERIAL SCIENCE Том 23 № 3 2021 EQUIPMEN . INSTRUM TS Vol. 6 No. 1 2024 Chemical composition of the objects (see fi gure 4, b) Object Element Weight, % Atomic, % Error,% Spot 1 O K 3.1 5.1 9.4 Al K 96.9 94.9 1.5 Spot 2 Al K 100.0 100.0 1.6 Area 1 Al K 100.0 100.0 1.6 Area 2 C K 56.8 75.8 10.6 O K 8.4 8.4 12.7 Zn L 5.2 1.3 8.5 Mg K 1.6 1.1 9.6 S K 11.6 5.8 3.2 Cl K 16.7 7.6 3.2 A special mold consisting of two teeth has been developed and manufactured to implement various process schemes for the hone manufacturing. Before forming the abrasive layer (fi gure 6, a), the upper plate 1 was removed from the mold. The mold had the form shown in fi gure 6, b (in the center). The side plate 2 was attached to the mold with screws (see fi gure 6, a). The prepared plates of the abrasive layer material containing the abrasive powder were placed in grooves 4 of the lower plate 3 and distributed evenly on the V-shaped surface of each tooth. The plates were pressed by the upper plate 1 and placed on the table of the press for forming an abrasive layer with a thickness of 3 mm, specifi ed by the design dimensions of the mold. The excess of the molded material enters three derivation canals 5 (see fi gure 6, b). The channels are formed as a result of combining three grooves 6 on the lower plate 3 (see fi gure 6, a) with three of the same slots 7 on the upper plate 1. The same mold, with some modifi cations, is used to make a two-teeth hone model (fi gure 6, b). The preparation for molding consisted in removing the upper forming plate 1. Then, the annular gear material was placed in the mold on the molded abrasive layer and a two-teeth hone fragment was obtained by pressing to study the mechanical, physical and chemical properties of the tool materials. In order to exclude the established fact of displacement of the abrasive layer during molding (see fi gure 3), the preliminary vulcanization of the functional layer was carried out. Then, as mentioned above, а b Fig. 6. A mold for forming a diamond-bearing layer (a) and hone teeth (b)
RkJQdWJsaXNoZXIy MTk0ODM1