Wear Investigation of Aluminum Alloy Surface Layers Fabricated through Friction Stir Welding Method

Abstract

In this research paper, an effort was made to investigate the dry sliding wear rate of friction stir welded AA6262/AA5456 composite performed by the Taguchi approach. Wear experiments are carried out by selecting suitable process parameters such as load (LD), sliding speed (SS), and sliding distance (SE) to recognize the individual and combination effects of parameters. Orthogonal array L27 mode is applied to make numbers of experiments to find the extreme and minimum wear amount. The experimental works are conducted on Pin on Disc (POD) apparatus and measured the weight of samples before and after test for calculating wear rate (WR) and then various analyses are performed such as ANOVA, interaction plot between parameters, and regression model with support of MINITAB software. The results revealed that maximum wear rate is found as 0.01215 mm3/Nm at LD of 50 N, SE of 600 m, and SS of 4 m/s, whereas minimum 0.00414 mm3/Nm at the grouping process parameters which are LD of 30 N, SE of 400 m, and SS of 6 m/s. From the observation of ANOVA, the most significant factor is identified as load, followed by sliding distance, sliding speed, and combination of each parameter. The load is considered as main parameter which contributes about 83.75% to achieve the maximum wear rate of developed AA6262/5456 composites. The contribution of sliding distance and speed are 3.75% and 1.85%, respectively.

Developed Mathematical Model of Wear Rate for Al Alloy with Nanoparticle Reinforcement

“…Wear resistance is influenced by the reinforcing particle's interaction with the alloy of aluminium. The experimental trials were carried out using the Taguchi technique to collect data in a controlled manner [15][16][17][18]. Using ANOVA, it was determined how wear parameters such normal load, sliding speed, and distance affected the wear of the composites.…”

Experimental Investigation of Material Removal Rate Parameters in ECM for Aluminum Hybrid Matrix Composites Using the RSM Technique

“…After being stirred continuously for 7 minutes by a stirrer, the prepared melted liquid is transferred into the die to produce Al 6082/ZrSiO 4 / TiC-based composites. Unnecessary portions from the generated samples are removed using a grinding machine [20]. Te complete setup of the stir casting process is displayed in Figure 1.…”

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In the present work, the preparation of AA-6082/ZrSiO 4 /TiC hybrid composite is studied along with an analysis of the efects of electrochemical machining parameters such as feed rate of electrode (FE), voltage (VO), electrolyte concentration (EL), and electrolyte discharge (ED) rate on the output responses of the material removal rate (MRR) and surface roughness (SR) for Al hybrid composites. Te experiments are carried out based on the Taguchi L16 orthogonal array and the important process parameters are found for MRR and SR. Each parameter contains four diferent levels that are FE (0.10, 0.15, 0.20, and 0.25 mm/ min), VO (10,15,20, and 25 V), EL (15, 20, 25, and 30 g/lit), and ED (1.5, 2, 2.5, and 3 lit/min).Te optimization software, namely, Minitab-17 version helps to fnd the contribution of each parameter on MRR and SR. Te ANOVA result reveals that the feed rate of electrode is the highest contributing parameter, trailed by the electrolyte discharge rate and other process parameters for MRR and SR. A linear model of regression and interaction plots is also included to show the relationship between the parameters. From the observational results, the highest MRR (0.00953 mg/min) is attained by the parameter combination level of the feed rate of electrode of 0.20 mm/min, voltage of 25 V, electrolyte concentration of 20 g/lit, and electrolyte discharge rate of 1.5 g/, whereas the lowest MRR is found at FE of 0.10 mm/min, VO of 10 V EL-15 g/lit and ED of 2.5 g/litre.

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Evaluation of Mechanical Properties for Epoxy Resin in Nano Composite Diffusion

“…Te advantage of the nanocomposite polymer is an advantage in physical properties when compared to existing composites, which makes the nanocomposite polymer more optimal for fllers. Te nanocomposite has the characteristic of improving mechanical strength with a low fller, which makes the material light in weight [19]. Te nanocomposite inclusion can enhance the material stifness with no efect on its toughness and can improve the holding properties without reducing the transparency or mechanical characteristic with fame retardant properties without changing the color [20,21].…”