Abstract This work focuses on developing the mathematical model of surface roughness (Ra) in turning Inconel 625 superalloy with cryogenically treated tungsten carbide inserts. The influence cryogenic microstructure and hardness tools was also investigated for as-received inserts deep treatment at − 196 °C 12, 24, 36 h conditions. Turning experiments have been performed according to an orthogon...

Abstract This work investigates which factors and interactions are more influential in the inkjet printing process of conductive poly (3, 4-ethylenedioxythiophene):poly (styrenesulfonate) patterns. The chosen experimental design is an L16 Taguchi experiment with seven different two levels each eight interactions. studied printhead voltage, print resolution, substrate temperature, treatment, hei...

Large-flow, high-pressure fans are required to improve the shape-keeping and flight-height-adjusting ability of stratospheric airships. This study optimizes analyzes a fan MIX-130 suitable for airship. Five design parameters selected optimize fan’s static pressure rise efficiency: impeller outlet installation angle, angle increment, blade thickness, diffuser tilt L16(45) orthogonal test optimiz...

Thin plates with arbitrary shapes and stiffeners find wide usage in construction, aerospace, marine, etc. industries. In the present work a parametric investigation of thin structural steel has been carried out. The design parameters considered were subtended angle aspect ratio to account for different used various applications. Another parameter that was is stiffener its orientation. impact va...

In the present study, drilling tests were carried out on Custom 450 stainless steel workpieces. The influences of control factors (cutting speed-Vc, feed rate-f and drill bit geometry-D) drilled holes’ surface roughness (Ra) size adhering workpiece (AW) to was examined. results obtained from designed based Taguchi’s L16 orthogonal array analysed using ANOVA grey relational analyses (GRA). There...

This paper deals with the optimization of external roller burnishing operation using a CNC lathe for Mg-SiC metal matrix. Magnesium was alloyed 10% (w/w) SiC particles as reinforcement. The Stir casting process used to cast bars. turning then performed on these bars prepare them process. parameters considered during are speed, feed rate, force and number tool passes. Surface roughness, microhar...