Parametric analysis on Electro-chemical machining of SKD-12 tool steel

Jeykrishnan, J.; Ramnath, B. Vijaya; Elanchezhian, C.; Akilesh, S.

doi:10.1016/j.matpr.2017.02.272

Cited by 10 publications

(6 citation statements)

References 8 publications

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“…Nevertheless, as a nonconductive material of high temperature resistance and hard brittleness, quartz glass is hard to be machined by the traditional techniques such as mechanical grinding or milling [1]. Non-traditional machining techniques such as EDM (electrical discharge machining) [2] and ECM (electrochemical machining) [3] also have limitations because they can only machine the conductive materials like steel rather than quartz glass. Electrochemical discharge machining (ECDM), also known as spark assisted chemical engraving (SACE), is available for machining the hard and brittle nonconductive materials.…”

Section: Introductionmentioning

confidence: 99%

Reducing Tool-Tip Wear in Micro ECDM Scanning Process with Feedback Control of Flexible Contact Force

Nawaz¹,

Cao²,

Tong

et al. 2023

Preprint

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While machining the quartz glass in micro ECDM (electrochemical discharge machining) scanning process, the wear of tool electrode is adverse to machining accuracy. In this research, the developed spindle with servo feedback control of flexible force is used to avoid the instantaneous change of contact force that leads to the bending of tool electrode when the machining surface is uneven. The basic experiments are carried out through optimizing the processing parameters of open-circuit voltage, scanning speed, and scanning time, and then the mechanism and key influential factors of tool wear are analyzed. It is found that the tool wear is caused by the chemical reaction, the heat from discharges, and the friction between tool-electrode tip and workpiece surface. Therefore, three methods for reducing the tool wear are proposed and experimented. Method I: the low temperature electrolyte is applied in increasing the heat dissipation ratio of the tool-tip. Method II: the side wall of tool electrode is insulated by an oil film to constrain spark discharges only at the tool-tip bottom. Method III: more bubbles are pumped to promote the formation of gas film and the electrolyte renewal. Experimental results show the tool wear can be obviously reduced, so the machining accuracy of micro structures on quartz glass is improved in micro ECDM scanning process.

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Section: Introductionmentioning

confidence: 99%

Reducing Tool-Tip Wear in Micro ECDM Scanning Process with Feedback Control of Flexible Contact Force

Nawaz¹,

Cao²,

Tong

et al. 2023

Preprint

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show abstract

“…Sometimes, interelectrode gap (IEG) is also considered as one of the input parameters on MRR [10]. Optimizing parameters of current, voltage, and electrolyte concentration in ECM of SKD 12 tool steel are analyzed with four levels [11]. Optimum process parameters for the desired performance measures are determined by Taguchi's S/N ratio analysis and ANOVA table [12].…”

Section: Introductionmentioning

confidence: 99%

Investigating the Material Removal Rate Parameters in ECM for Al 5086 Alloy‐Reinforced Silicon Carbide/Flyash Hybrid Composites by Using Minitab‐18

Gugulothu

Kumar²,

Srinivas³

et al. 2021

Advances in Materials Science and Engineering

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This study explained about machining parameters of Al5086/Flyash/Sic hybrid metal matrix composites by the Taguchi technique. Al5086 reinforced in SiC (5–10 wt %) and 8% weight of flyash are retained as constants. The specimens are prepared with the help of the stir casting method. The material removal rate was examined by electrochemical machining under various parameters such as feed rate (0.15–0.30 mm/min), voltage (10–20 V), and electrolyte concentration (20–35 g/litre). Taguchi’s L16 orthogonal array was selected for design of experiments (DOEs), and 16 experimental tests were conducted to examine the effect of the selected machining parameters employed to identify the best optimal levels and also to investigate the effect of electrochemical machining parameters on MRR determined by Minitab-18.

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“…Electropolishing (EP) is a finishing process that removes material from a metal based on an anodic dissolution process, which was invented by M. Faraday in the 19th century [1]. EP is commonly used as a non-conventional final machining process and is commercially applied in the medical, automobile, and petroleum industries [2,3]. EP has many merits compared to other non-conventional machining techniques, such as negligible tool wear, a higher material removal rate, and the ability to fabricate complex shapes [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

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

Mahardika

Setyawan

Sriani³

et al. 2021

Machines

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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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Parametric analysis on Electro-chemical machining of SKD-12 tool steel

Cited by 10 publications

References 8 publications

Reducing Tool-Tip Wear in Micro ECDM Scanning Process with Feedback Control of Flexible Contact Force

Reducing Tool-Tip Wear in Micro ECDM Scanning Process with Feedback Control of Flexible Contact Force

Investigating the Material Removal Rate Parameters in ECM for Al 5086 Alloy‐Reinforced Silicon Carbide/Flyash Hybrid Composites by Using Minitab‐18

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

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