WASPAS Optimization in Advanced Manufacturing

[Audio] My name is Andrzej Perec and I would like present paper WASPAS Optimization In Advanced Manufacturing paper by myself and Dr. Alexandra Radomska Zalas.

[Audio] Agenda. The scope of presentation: Introduction Tests Results and discussion Summary and conclusion References.

[Audio] Introduction. Usual cutting methods for heavy to machining metals do not provide enough effectiveness and accuracy. Abrasive water jet [ 1], [ 2] and pulsating water jet [ 3], [ 4] treatment are devoid of such disadvantages. An additional advantage of the water jet technology is its environmental friendliness [ 5], [ 6]. High-pressure water jet treatment is one of the fastest-growing advanced production technologies. It competes effectively with conventional methods of materials separation. This is due in large part to it from the wide possibilities of cutting both diverse materials [ 7] including multi-layer materials with different properties [ 8], [ 9] and precise cutting complex contour [ 10], or conducting them in uncommon conditions [ 11], [ 12] ( risk of detonation, conflagration, etc.). Materials machining by the abrasive water jet is more complicated in relation to conventional treatments. Water under a high-pressure condition, generated in the special high-pressure pump - intensifier, is transformed inside a nozzle to a high-speed jet, almost 800 m/s speed and grabs abrasive grains in mixing chamber, accelerate them to a high speed of the jet..

[Audio] Conclusions. Research was carried out as per Taguchi L27 orthogonal array with three control factors, each at three levels. The basic aim of this tests was to obtain the optimal set of control parameters that affect the cutting depth and the surface roughness in the presence of multiple responses. The research conducted confirmed the equity of applying the method in multi-criteria optimization of the Hardox steel cutting process by AWJ and confirmed improvement in performance measures. On the basis the factors calculation concluded that the best possible combination of the process parameters to optimize the output parameters is follow: • abrasive flow rate = 450 g/min, • pressure = 400 MPa, • traverse speed = 100 mm/min. The change in traverse speed causes the biggest changes in effects, next by the abrasive flow rate and the smallest impact was noted for the pressure output. The proposed methodology of simultaneous optimization can be used also to optimize 4– 5 responses, and robustness can be checked..

[Audio] Thank You for Your attention! If you have any questions, please send an email.