Drilling Parameters Optimization and Characterization of Al7075 Reinforced with Al2O3

Lingamurthy, K.; Manjunatha, T.H.; Joshi, Raghavendra; Basavaraja, Yadavalli; Anilkumar, H.M.

doi:10.1016/j.matpr.2018.10.310

Cited by 8 publications

(3 citation statements)

References 11 publications

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“…Drilling test carried out based on the Taguchi design method. They found that the best surface roughness is obtained for composite material with 2 wt% B 4 C. Lingamurthy et al 31 studied experimental optimization of operating parameters and mechanical properties of Al 7075 composite materials reinforced with Al 2 O 3 using the Taguchi design method. Results of surface roughness were analyzed by analysis of variance (ANOVA) and the mathematical equation was produced using the multilinear regression method.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of surface roughness in drilling particle-reinforced composites

Fıçıcı¹

2020

Advanced Composites Letters

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Aluminum matrix composite materials being used in different sectors including automobile, aerospace, defense, and medical and are currently displacing unreinforced materials with their superior mechanical properties. The metal removal process of drilling is widely used in many structural applications. This study experimentally investigates the drilling characteristics of silicon carbide (SiCp)-reinforced Al 7075 composites produced by stir casting method. Also, two different drill materials with high-speed steel (HSS) and titanium nitride (TiN)-coated HSS carry out in drilling operation. The effect of operational parameters such as cutting speed and feed rate and materials parameters such as weight fraction of reinforcement and cutting tools on the surface roughness of drilled holes were evaluated in the drilling operations. The results of the drilling test indicate that the feed rate and cutting speed have a very strong effect on the surface roughness of matrix alloy and composite materials. The surface roughness ( Ra) values increased with increasing the feed rate and decreased with increasing the cutting speed. Under 0.10 mm/rev and 20 m/min drilling conditions and using HSS drill, surface roughness values for matrix, 5% SiC-, 10% SiC-, and 15% SiC-reinforced composites, were obtained 2.57, 2.59, 2.61, and 2.64 µm, respectively; besides, using TiN-coated HSS drill, surface roughness values were obtained 1.60, 1.63, 1.64, and 1.66 µm, respectively. An increase in the weight fraction of the abrasive SiC particle resulted in a very crucial deterioration quality of the drilled hole. TiN-coated HSS drills better performance exhibits than uncoated HSS drills for all the drilling operations about surface roughness properties. Short chip formations observed both the matrix alloy and the composite materials for two different drills in the drilling operations.

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Section: Introductionmentioning

confidence: 99%

Evaluation of surface roughness in drilling particle-reinforced composites

Fıçıcı¹

2020

Advanced Composites Letters

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“…Lingamurthy et al performance the drilling experiments for various proportions of (2, 4 and 6wt.%) Al2O3 particulate filled Al7075 matrix composites. They have understood that 4wt.% Al2O3 composite produces better surface quality among the others [22]. Paulo Davim have analyzed the cutting variables in drilling of A356-20wt.% SiC composites of heat treated condition.…”

Section: Introductionmentioning

confidence: 99%

Optimization of machining parameters in drilling of aluminium matrix composite (Al7050-12wt.% ZrO2) using Taguchi technique

Kumar¹,

Alagarsamy

Hossain³

et al. 2023

Preprint

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This study focused on optimizing the drilling variables for minimizing the surface roughness (Ra) of Al7050 alloy based composite using Taguchi technique. The stir casting route was adopted to synthesis the Al7050 matrix composite with addition of 12 wt. % ZrO2 particles as reinforcement. The different process parameters such as spindle speed (v), feed (f), and depth of cut (d) were chosen as the input parameters, while the Ra was considered as the output response. Based on the parameters selection, the drilling process was carried out on Taguchi L16 orthogonal design. The SN (signal-to-noise) ratio and ANOVA (analysis of variance) were applied to yield the optimal setting of parameters and their impact contribution on Ra for the drilled composite. The SN ratio results identified that the minimum value of Ra was achieved at 1600 rpm of spindle speed, 0.12 mm/rev of feed and 1.0 mm of depth of cut. ANOVA result observed that the most noteworthy parameter for Ra was feed (62.24%), followed by spindle speed (26.24%). The contour graphs revealed that the Ra value drastically reduced when an increase in depth of cut (d) and decrease in feed (f). The regression model has been formulated to establishing the relationship of drilling parameters on Ra.

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“…It becomes necessary to study the significant effect of process parameters on the quality characteristics of a hole before announcing them as standard parameters. Taguchi method is the easiest and most deliberate statistical approach to evaluate the effect of cutting parameters on output variables [14,15]. An analytical statistical technique known as ANOVA is used to quantify the relative importance of each factor on the objective function [11,16].…”

Section: Introductionmentioning

confidence: 99%