TY  - EJOU
AU  - Zhang, Yunfeng 
AU  - Hu, Dong 
AU  - Liu, Yuan 

TI  - The Effect of Polymer-Assisted Abrasive Jets on the Surface Quality of Cut Marbles
T2  - Fluid Dynamics \& Materials Processing

PY  - 2025
VL  - 21
IS  - 7
SN  - 1555-2578

AB  - To address the challenges of poor surface quality and high energy consumption in marble cutting, this study introduces an auxiliary abrasive jet cutting technology enhanced by the use of polyacrylamide (PAM) as a drag-reducing additive. The effects of feed rate (50–300 mm/min), polymer concentration (0–0.5 g/L), and nozzle spacing (4–12 mm) on kerf width and surface roughness are systematically investigated through an orthogonal experimental design. Results reveal that feed rate emerges as the most significant factor (<i>p</i> < 0.01), followed by PAM concentration and nozzle spacing. The optimal set of parameters, comprising a 200 mm/min feed rate, 0.3 g/L PAM concentration, and 6 mm nozzle spacing, achieves the narrowest kerf width (0.867 mm) and the lowest surface roughness (10.220 μm). Analysis of the underlying mechanisms demonstrates that PAM enhances the energy efficiency of the jet by suppressing turbulent pulsations and increasing fluid viscoelasticity, thereby minimizing energy loss during the cutting process.
KW  - Abrasive jet; polymer; orthogonal test method; process parameters; kerf width; surface roughness

DO  - 10.32604/fdmp.2025.065820