Study and evaluation of abrasive water jet turning process performance on AA5083

Abstract

In this study, the effect of processing parameters on surface roughness and macro surface characteristics was analyzed during the machining of Ø30 mm and 300 mm aluminum alloy AA5083 abrasive water jets. As the processing parameters (up to 10 mm min−1, 15 mm min−1, 20 mm min−1 and 25 mm min−1), abrasive flow rate (50 g min−1, 150 g min−1, 250 g min−1 and 350 g min−1), the lathe chuck rotational speed (25 min−1, 50 min−1, 75 min−1 and 100 min−1) and the nozzle approach distance (2 mm, 5 mm, 8 mm and 11 mm) were used in experiments. In experimental studies, the pump pressure (360 MPa) was used as a constant, in the form of an abrasive Garnet (100 mesh), and the nozzle diameter as 0.76 mm. According to the findings, the best results in terms of surface roughness were obtained as a result of turning speed and abrasive flow rate. When the macro surface characteristics were examined, it was found that the lathe chuck rotational speed increased, the rate of nozzle progression was low, the rate of abrasive flow was high and the nozzle approach distance was lower and the smoother surfaces were obtained.

Effect of rotation direction, traverse speed, and abrasive type during the hydroabrasive disintegration of a rotating Ti6Al4V workpiece

“…An approximately threefold increase in the roughness was recorded between v = 5 mm/min and v = 25 mm/min using olivine abrasive grains and a clockwise workpiece rotation direction. A similar trend of Ra variation (Figure 7) with the traverse speed was obtained by Kartal 34 in which Ra increased 16% while increasing traverse speed from 10 to 25 mm/min.…”

“…Grain embedment (Figure 12(e)) on a rotating Ti6Al4V workpiece was also observed by Kartal during disintegration by AWJ. 34 The local shear force induced in the material by the jet, exceeding the ultimate strength of the material (1020 MPa), results in forming a crater (Figure 12(e)) and micro-holes (Figure 12(f)).…”

Simulation and Optimization of the Nozzle Section Geometry for a Suspension Abrasive Water Jet

“…In research by Kartal, F., the effects of different processing parameters on the surface roughness and the macro and micro surface characteristics were studied by turning AA5083 aluminum alloy workpiece with different diameters by abrasive water jet. It was concluded that turning speed and abrasive flow rate have the greatest influence on surface roughness; when the lathe chuck rotational speed increases, the nozzle forward speed is low, the abrasive flow rate speed is high, and the nozzle approach distance is low, and a smoother macro surface will be obtained [12]. Ma, Q. et al studied the abrasive recycling of abrasive suspension water jet, and concluded that the recycled abrasive with only large particle impurities being sieved out still has strong cutting ability, and the performance does not decrease significantly after multiple cycles, and the abrasive particle size is controlled at 90 to 180 µM; the quality control of surface roughness is ideal [13].…”