OBRABOTKAMETALLOV Vol. 23 No. 3 2021 MATERIAL SCIENCE EQUIPMENT. INSTRUMENTS 5 3 Fig. 4. Block schematic diagram of the hybrid metalworking machine where A and С – degree axes of the worktable; Y – vertical movement of the worktable with the workpiece; X and Z – linear tool movements; h D – spindle rotation with cutting tool; d – setting rotational motion of the inductor. Block Dh, which performs the main cutting motion during milling, is additionally marked with a ∧. After a comprehensive analysis of the required structural formula for the layout of hybrid equipment, the kinematic structure of the MS 032.06 machine and the rigidity of its base units, the main directions for upgrading the specified model of metalworking equipment were identified. The complex of pre-project studies carried out made it possible to prepare working documentation for the implementation of hybrid technological equipment that combines mechanical and surface-thermal treatments (fig. 5). As a result of calculations of the technical characteristics of hybrid metal-working equipment, it was recorded that in order to ensure a level of shaping productivity comparable to mechanical operations, it is necessary to carry out HEH HFC hardening at speeds of the order of VS ∈ [50, 100] mm/s. Conducting fullscale experiments made it possible to determine the range of specific power of the source qS (h, VS), which it is required to HEH HFC hardening: qS ∈ [1.5; 4.0] 10 8 W/m2. To confirm the effectiveness of the implementation of the developed hybrid equipment, let’s consider a specific example – the final stage of the plug processing (fig. 3). In this example, two different processing a b Fig. 5. Hybrid metal-working machine: a – general view of the machine; b – basic layout of the integral machine tool complex: 1 – machine bed; 2 – dual slides; 3 – spindle assembly; 4 – vertical slide; 5 – turntable; 6 – tool magazine; 7 – microwave thyristor-type generator SHF-10
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