توسعه و مشخصه‌يابي چرخ‌ سنگ‌زني سيليكون كاربايد با چسب پايه رزيني ساخته شده به ‌روش ساخت افزودني مبتني بر استريوليتوگرافي

To enhance performance an‎d extend the service life of grinding tools, this study employed a combination of structural engineering design an‎d material optimization, aimed at mitigating common challenges in surface quality, energy consumption, an‎d tool wear. Composite grinding wheels were manufactured using stereolithography (SLA) technology; by surface modifying the abrasive particles (oil coating) an‎d reducing the fumed silica content from 3 wt% to 2 wt%, the slurry viscosity was decreased, an‎d SiC sedimentation was reduced from about 90% to less than 5%. Compared with the neat resin, the resulting composite exhibited significant improvements: ultimate tensile strength (+10.8%), fracture force (+3.72%), compressive strength (+6.50%), impact energy (+90%), hardness (+1.11%), heat deflection temperature (+103%), an‎d a wear volume reduction of more than 95%. In grinding Aluminum 6061, tools with discontinuous structures (channeled an‎d grooved; T200 an‎d VCT) showed 40–95% lower forces, temperatures, an‎d wear rates, an‎d a 50% improvement in surface roughness compared with the reference tool. In particular, VCT achieved 31% lower roughness an‎d 62% lower wear than CCT, while ST reached optimal efficiency only at a feed rate of 800 mm/min. In grinding MO40 steel, the improvements were more pronounced: surface roughness was reduced to 0.050 μm, forces decreased by up to 60%, an‎d wear by up to 93% relative to aluminum results. T100 delivered the lowest roughness an‎d excellent thermal stability (temperature difference of 6 °C), T200 provided a desirable balance across all performance indicators, an‎d ST, CCT, an‎d VCT also showed notable reductions in forces an‎d wear. Overall, the combination of intelligent structural design, material composition optimization, an‎d slight formulation adjustments led to substantial reductions in force, wear, an‎d temperature, alongside significant improvements in surface quality—effects that were even more pronounced when machining hard materials.

محسن صفوي

مهدي كاروان

مهدي احمدي , پيمان مصدق , مهدي كاظمي