Optimization of dry sliding wear parameters of Al 7075 MMC’s using Taguchi method

Reddy, Vajrala Venkata; Mandava, Ravi Kumar; Rao, Veeravalli Ramakoteswara; Mandava, Sunitha

doi:10.1016/j.matpr.2022.04.698

Cited by 11 publications

(3 citation statements)

References 15 publications

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“…The SN ratio, which sums together the various input parameter arrangements of the run, is determined by the type of output being examined. To examine dry sliding wear, the 'smaller is better' features were chosen [30][31][32][33][34][35].…”

Section: Methodsmentioning

confidence: 99%

“…It does not only reduce the number of experiments to be conducted but also lays down the investigations needed to achieve the goal. The correct identification of factors is required in order to analyze the scientific process [35][36][37][38]. To construct the engineering optimization and analysis experiment plan, the Taguchi method uses standard orthogonal arrays.…”

Section: Design Of Experimentsmentioning

confidence: 99%

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Process Optimization of Automotive Brake Material in Dry Sliding Using Taguchi and ANOVA Techniques for Wear Control

et al. 2022

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In this paper, an investigation of the load-dependent wear behavior of copper-free semi-metallic brake material is presented. The experiments were conducted in ambient thermal settings with varying sliding velocities (3.141 m/s, 2.09 m/s, and 1.047 m/s), normal load (60 N, 50 N, and 40 N), and sliding distance (4500 m, 3000 m, and 1500 m). Taguchi’s method was used in designing experiments to examine the output through an L9 orthogonal array. ANOVA was used to identify the consequence of interactions among different constraints. It also established the significant contribution of each process factor. The objective was set as the ‘smaller is better’ criterion to find minimum wear conditions. The impact of the normal load on the wear process was found to be maximum (71.02%), followed by sliding velocity (27.84%) and sliding distance (1.14%). The optimum condition for the minimum wear rate was found at 40 N normal load, 1500 m sliding distance, and 3.14 m/s sliding velocity. The results were confirmed with validatory friction experiment runs. The resulting error was within 10% error, which verified the experiment methods. The SEM investigation of worn surfaces of pin and disc confirmed abrasive wear and adhesive wear at 60 N and 40 N, respectively.

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Section: Methodsmentioning

confidence: 99%

Section: Design Of Experimentsmentioning

confidence: 99%

Process Optimization of Automotive Brake Material in Dry Sliding Using Taguchi and ANOVA Techniques for Wear Control

et al. 2022

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“…7 Reinforcement modification not only improves tribological performance but also enhances mechanical properties. Aluminum alloys can be reinforced with materials like TiC, 8 Al 2 O 3 , 9 SiC, 10 AlN, 11 B 4 C, 12 BN, 13 fly ash, 14,15 TiB 2 , 16 and carbonous materials such as graphite, 17 GNP, carbon nanotubes (CNTs), etc. Addition of hard reinforcement shields the surface of matrix material from severe damage during sliding resulting in low COF and wear.…”

Section: Introductionmentioning

confidence: 99%

Effect of MWCNTs and heat treatment on coefficient of friction and wear characteristics of MWCNTs reinforced Al6082 composites under dry sliding condition

Baghel

Krishna

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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Herein, MWCNTs/Al6082 composites were produced using a stir casting technique, and their tribological behavior was studied in as-cast and T6 heat-treated conditions using a pin-on-disk tribometer at a sliding speed of 2 m/s (fixed) and varying applied load (40, 60, and 80 N) and sliding distance (500–3000 m). Morphology of composites and worn-out surfaces were studied using a scanning electron microscope (SEM). Linear increment in wear rate was observed with sliding distance up to transition limit and then upsurged drastically beyond that limit. At 40 N, a protective layer started forming between the disk and surface of pin, which reduced coefficient of friction (COF), and wear mechanism was abrasion and oxide. Annihilation of protective layer at higher load increased COF and observed wear mechanism was adhesion and delamination. Wear resistance of alloy and nanocomposites was enhanced by heat treatment due to the strengthening of matrix. Wear rate of Al matrix was reduced with MWCNTs due to their self-lubricating property.

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Dry sliding wear characteristics of Al7075 alloy‐reinforced with SiC and cenosphere particles

Balaji,

Keerthiprasad,

Babu

et al. 2023

Engineering Reports

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Aluminum metal matrix composite (AMMC) is employed in all engineering applications, most notably as a substitute for conventional metals in the fields of defense, automotive, and aerospace. AMMC should have a wide variety of structural, mechanical, thermal, wear, and corrosion qualities that may require mutually exclusive features at an optimal level to achieve this. The current research focuses on the stir casting process for producing SiC and cenosphere reinforced Al7075 alloys. The response surface method's (RSM) face‐centered central composite design (CCD) was used to design the number of experimental trials, and a response surface technique was enforced to forecast the optimum combination of processing variables in the wear process. The SiC reinforcement improved the wear resistance of Al7075‐SiC‐cenosphere composites substantially. Overall, the experiments show that Al7075‐6 wt% SiC‐5 wt% cenosphere has excellent tribological properties. The hybrid Al7075/SiC/Cenosphere composites were shown to be effective, fit, and suitable in the ideal wear process parameters (load of 10 N, sliding distance of 1000 m, and sliding velocity of 1.5 m/s) for lowering wear rate (0.38035 × 10−3 mm3/m) at 6wt% SiC reinforced composite. This suggests that the combination of SiC and cenosphere improves the wear resistance of AMMC.

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Optimization of dry sliding wear parameters of Al 7075 MMC’s using Taguchi method

Cited by 11 publications

References 15 publications

Process Optimization of Automotive Brake Material in Dry Sliding Using Taguchi and ANOVA Techniques for Wear Control

Process Optimization of Automotive Brake Material in Dry Sliding Using Taguchi and ANOVA Techniques for Wear Control

Effect of MWCNTs and heat treatment on coefficient of friction and wear characteristics of MWCNTs reinforced Al6082 composites under dry sliding condition

Dry sliding wear characteristics of Al7075 alloy‐reinforced with SiC and cenosphere particles

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