Using a functional approach in solving problems improve performance waterjet equipment
Keywords:waterjet cutting, calibration tube, protective layers, functional-oriented approach
The paper shows the influence of parameters of the calibration tube jet-abrasive devices on the quality of the process of waterjet cutting critical parts. The results of modeling the formation of two-phase flow and its movement in the calibration tube. Determined that the effects wear ductal fluid of the tube varying intensity and character. In this regard there is the need for functional-oriented approach to the choice of means to ensure the desired geometric parameters of the tube. It is concluded that the decrease in the intensity of ductal Shot material of the tube and thus maintain its geometric parameters is possible by the use of suitable protective coatings , thickness and physical and mechanical characteristics are selected on the basis of Value attributes according to the intensity and type of abrasive loading surface
2. Salenko O.F., Fomovska O.V. (2008)”Prospects for market equipment for sheet handling”, Visnyk KDPU, 2008. №6(48). P. 45-50.
3. Tsygankovskij A.B. Determining of the degree of influence of the angle of attack jet on productivity and quality of waterjet processing submerged jets, Visnyk SNU named by V. Dal. 2009. №6, P. 220-228.
4. Provolotskij A.E. Jet-abrasive treatment of details, Tehnica, Kyiv: 1989. 189 p.
5. Kleis I.R. Fundamentals of the choice of materials for operation in the gas abrasion wear. Friction and wear, 1980. №2, P. 263 - 271.
6. Dudyuk V.O. Analysis of dynamic loading of items of zone of hydrocutting using application package flow vision, Visnyk KrNU, 2010. №6(65), P. 59-62.
7. Lopata L.A. Adhesion strength and residual stress at electrocontact sintering of powder coatings, Strength of Materials, 2010. №4, P.71–76.
8. Mykhaylov A.N. Development of technologies based on the function-oriented approach. DonNTU, 2008. 450 p.
9. Sychuk V.A., Zabolotniy O.V. “New principles of designing and manufacturing nozzles for waterjet machines”, Scientific Bulletin Kherson State Maritime Academy, 2012. No. 1(6), PP. 317–321.
10. Anand Umang, Katz Joseph. Prevention of nozzle wear in abrasive water suspension jets (AWSJ) using porous lubricated nozzles. The Johns Hopkins University, Department of Mecanical Engineering, Baltimore, MD 21218. Trans. ASME. J. Tribol. 2003. P. 168–180.