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The present study focuses on the drilling processes and its parameters of titanium–titanium boride composites which are optimized using Taguchi technique. The titanium–titanium boride composites aiming 20% and 40% of titanium boride (by volume) is processed through three different powder metallurgical techniques such as, spark plasma sintering, hot isostatic pressing and vacuum sintering, respectively...
The present article emphasizes on reducing the edge chipping and taper during rotary ultrasonic drilling of one of the most demanded ceramic glasses “BK-7.” Statistical tools of design of experiments and backing plate were adopted as two distinct approaches to curb the chipping damage. Central composite design has been conjugated with desirability function for framing the design matrix. This investigation...
This study focused on the influences of drilling parameters on hole quality and thrust force in drilling of carbon fiber-reinforced polymer (CFRP) composite laminates via variable feed rate. Drilling experiments were carried out by using three different cutting speeds, feed rates and the qualities of tungsten carbide drill. Scanning electron microscopy and coordinate measurement machine were used...
In this present study, optimization of drilling parameters in hybrid Al-6061/SiC/B4C/talc composites was studied using grey relational analysis. The purpose of this research was the investigation of the effect of drilling parameters on Al6061/SiC/B4C/talc composites fabricated using the stir casting. These hybrid composites containing talc (solid lubricant) particles reduce thrust force, circularity...
Among the various classifications of fiber-reinforced polymer composites, carbon fiber-reinforced plastic (CFRP) composite materials have great potential in aerospace, automobile and marine industries. Drilling is a common machining process of CFRP composites. Surface delamination, tearing, abrasion, denting, cutting of fibers, formation of voids, fiber bending and pullout, etc. are significant problems...
In this study, the influence of drilling parameters on circularity error, tool tip temperature and flank wear is investigated while drilling of Ti–6Al–4V alloy specimens with dissimilar cutting tool materials under dry machining conditions. In addition, optimal control factors for circularity error, tool tip temperature and flank wear have been determined using Taguchi–Grey relational analysis. Rotational...
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