Технічна інженерія (Jun 2020)

CAD-CAM technologies for the design and manufacture of parts on CNC machines

  • O.A. Lytvynenko,
  • Yu.I. Boiko,
  • V.A. Yanovskyi

DOI
https://doi.org/10.26642/ten-2020-1(85)-15-22
Journal volume & issue
Vol. 1, no. 85
pp. 15 – 22

Abstract

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The paper investigates the use of CAD-CAM technologies for the design and manufacture of parts on machines with numerical program control (CNC). These technologies allow designing technological routes of processing of surfaces of details of various complexity and making them on modern processing centers with CNC, and their use in the conditions of small-scale, single productions is justified and economically rational. Many operating enterprises in various industries have long been using technological equipment that is morally and physically obsolete. As a rule, wear parts (spare parts) are no longer produced for them. Replacement of obsolete technological equipment in the existing technological schemes of the production process of the enterprise requires significant material and financial costs, and its repair is complicated by the lack of spare parts. Therefore the question of manufacturing by the individual order of the enterprise of a small amount of worn out details for increase of maintainability of the operating technological equipment is actual. The article is devoted to the study of the possibilities of using CAD-CAM software systems «Autodesk Inventor», «ESPRIT» and «Creo Parametric» for the manufacture of custom worn impeller centrifugal electric pump KM 65-50-220, installed in the water treatment system of the food process . The step-by-step sequence of designing and manufacturing of a new improved (modernized) part instead of worn-out, possibilities and advantages of modern CAD-CAM software complexes, technological possibilities of CNC equipment is investigated. It is shown that the use of CAD-CAM systems «Autodesk Inventor», «Esprit» and «Creo Parametric» and a modern machining center Haas UMC-750 with CNC for the manufacture of a new improved design of the impeller of the electric pump, in single production, has significantly reduced technological time, preparation for the manufacture and replacement of worn parts, to improve the quality, reliability, durability and maintainability of the equipment operating at the enterprise.

Keywords