Optimization of machining parameters in turning GFRP composites using a carbide (K10) tool based on the taguchi method with fuzzy logics

This study analyzed the tool vibration (Vib) and surface roughness (Ra) during turning of AISI 4340 (34CrNiMo6) tempered steel samples using Taguchi Method. In this context, Taguchi design L18 (21 × 32) was used to analyze the experimental results. The vibration amplitude values from cutting tools were recorded for different machining parameters, control factors; two different sample hardness (46 and 53 HRc), three different cutting speeds (180, 220, 260 m.min−1), and feed rates (0.08, 0.14, 0.20 mm.rev−1) were selected. The machining parameters giving optimum Vib and Ra values were determined. Regression analysis is applied to predict values of Vib and Ra. Analysis of variance was used to determine the effects of machining parameters on the Vib and Ra values. The most important machining parameters were found to be the feed rate, sample hardness, and cutting speed for Vib and Ra, respectively. The lowest Vib and Ra values were obtained in 46 HRc sample as 0.0022 gRMS and 0.255 µm, respectively. The surface quality can be improved by reducing the sources of vibration by using appropriate machining parameters. As a result, there is a significant relationship between Ra and Vib. The lower Ra values were found during turning process of tempered steel samples according to the literature studies. It is suggested that the process can be preferred as an alternative process to grinding process due to lower cost and machining time. In application of the turning of experiment samples by ceramic cutting tool, a substantial technological and economical benefit has been observed.

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Multi-characteristics Optimization in the Turning of GFRP Composites Based on Grey-Taguchi Method

Proceedings of International Conference on Intelligent Manufacturing and Automation - Lecture Notes in Mechanical Engineering ◽

10.1007/978-981-13-2490-1_3 ◽

2018 ◽

pp. 27-34 ◽

Cited By ~ 1

Author(s):

Hari Vasudevan ◽

Ramesh Rajguru ◽

Kalpesh Tank

Keyword(s):

Taguchi Method ◽

Gfrp Composites ◽

Grey Taguchi

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Study of wire-electrical discharge machining parameters of titanium alloy by using taguchi method

International Journal of Engineering & Technology ◽

10.14419/ijet.v7i2.8.10316 ◽

2018 ◽

Vol 7 (2.8) ◽

pp. 10

Author(s):

A VS Ram Prasad ◽

Koona Ramji ◽

B Raghu Kumar

Keyword(s):

Surface Roughness ◽

Taguchi Method ◽

Process Parameters ◽

Optimization Technique ◽

Machining Process ◽

Machining Parameters ◽

Wire Edm ◽

Pulse On Time ◽

Pulse Off Time ◽

Edm Process

Machining of Titanium alloys is difficult due to their chemical and physical properties namely excellent strength, chemical reactivity and low thermal conductivity. Traditional machining of such materials leads to formation of continuous chips and tool bits are subjected to chatter which leads to formation of poor surface on machined surface. In this study, Wire-EDM one of the most popular unconventional machining process which was used to machine such difficult-to-cut materials. Effect of Wire-EDM process parameters namely peak current, pulse-on- time, pulse-off-time, servo voltage on MRRand SR was investigated by Taguchi method. 0.25 mm brass wire was used in this process as electrode material. A surface roughness tester (Surftest 301) was used to measure surface roughness value of the machined work surface. A multi-response optimization technique was then utilized to optimize Wire-EDM process parameters for achieving maximum MRR and minimum SR simultaneously.

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Electropolishing Parametric Optimization of Surface Quality for the Fabrication of a Titanium Microchannel Using the Taguchi Method

Machines ◽

10.3390/machines9120325 ◽

2021 ◽

Vol 9 (12) ◽

pp. 325

Author(s):

Muslim Mahardika ◽

Martin Andre Setyawan ◽

Tutik Sriani ◽

Norihisa Miki ◽

Gunawan Setia Prihandana

Keyword(s):

Taguchi Method ◽

Surface Quality ◽

Process Parameters ◽

Applied Voltage ◽

High Surface ◽

Machining Process ◽

Machining Parameters ◽

Pareto Analysis ◽

High Surface Quality

Titanium is widely used in biomedical components. As a promising advanced manufacturing process, electropolishing (EP) has advantages in polishing the machined surfaces of material that is hard and difficult to cut. This paper presents the fabrication of a titanium microchannel using the EP process. The Taguchi method was adopted to determine the optimal process parameters by which to obtain high surface quality using an L9 orthogonal array. The Pareto analysis of variance was utilized to analyze the three machining process parameters: applied voltage, concentration of ethanol in an electrolyte solution, and machining gap. In vitro experiments were conducted to investigate the fouling effect of blood on the microchannel. The result shows that an applied voltage of 20 V, an ethanol concentration of 20 vol.%, and a machining gap of 10 mm are the optimum machining parameters by which to enhance the surface quality of a titanium microchannel. Under the optimized machining parameters, the surface quality improved from 1.46 to 0.22 μm. Moreover, the adhesion of blood on the surface during the fouling experiment was significantly decreased, thus confirming the effectiveness of the proposed method.

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