Effect of Process Parameters on Machining Time in PMEDM Cylindrical Shaped Parts with Silicon Carbide Powder Suspended Dielectric

Hong, Tran Thi; Linh, Nguyen Hong; Cuong, Nguyen Van; Danh, Bui Thanh; Ky, Le Hong; Quy, Le Thu; Cường, Nguyễn Mạnh; Pi, Vu Ngoc; Tam, Do Thi

doi:10.4028/www.scientific.net/msf.1018.97

Cited by 8 publications

(3 citation statements)

References 12 publications

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“…The increase in the R a was attributed to the two facts (i) Owing to the high thermal conductivity of SiC more heat was generated inside the spark gap. 30 The generated heat was not distributed evenly over the surface results in formation of uneven machined surface. (ii) Because of the high density of SiC particles (4.36 g cm −3 ), the suspended particles sedimented over the machined surface which reduces the surface quality.…”

Section: Resultsmentioning

confidence: 99%

Impact of SiC Particle Incorporated Dielectric Medium on Machining Performance of AA7050/SiC/Al₂O₃ Hybrid Composites

Y²,

Nashreen.

2022

ECS J. Solid State Sci. Technol.

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The component produced with best surface quality increases the life time of the product and with the objective of attaining it. AA7050 hybrid composites was processed using the electric discharge machining (EDM) technique. Composites with varying weight percentage of reinforced particles were manufactured using the stir casting technique. SiC and Al2O3 with an average particles size of 5 μm was used as reinforcement. EDM experimentation was conducted on the composites by varying pulse on time (Ton), current (A), powder concentration, and reinforcement weight percentage and the experimental runs were designed using Taguchi mixed orthogonal array, Material removal rate (MRR), tool wear rate (TWR), surface roughness (Ra), and machined surface hardness were recorded as response. When SiC particles were added into the dielectric fluid, MRR increased. The generated heat was uniformly spread throughout the machined surface due to the low thermal conductivity of SiC particles. TWR for composites machined with 2 wt% reinforcing materials increased significantly when powder particles were introduced, reaching 32.61 mg/min. The dispersed particles settled across the machined surface due to high density of SiC particles (4.36 g/cm3), lowering the surface quality. Black spots, remelted particles, globules, and micro pits are some of textures observed on machined surface morphology.

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Section: Resultsmentioning

confidence: 99%

Impact of SiC Particle Incorporated Dielectric Medium on Machining Performance of AA7050/SiC/Al₂O₃ Hybrid Composites

Y²,

Nashreen.

2022

ECS J. Solid State Sci. Technol.

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“…According to the above analysis, perceived usefulness and perceived ease of use are affected by individual differences, system characteristics, social influence, and convenience (Alzubi et al, 2018 ; Ikram et al, 2018 ; Latifah et al, 2021 ), in which personality or demographic characteristics are individual differences, and they have a certain impact on the level of perceived usefulness and perceived ease of use (Amiruddin et al, 2021 ; Hong et al, 2021 ; Larue and Watling, 2021 ). Social impact refers to the degree of perception of an individual on the system under the guidance of social processes and mechanisms.…”

Section: Tam and Online Entrepreneurship Education For New Entrepreneursmentioning

confidence: 99%

Applying Technology Acceptance Model in Online Entrepreneurship Education for New Entrepreneurs

Li²

2021

Front. Psychol.

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The present study aims to enrich the research on online entrepreneurship education, improve the level and ability of entrepreneurship services in China, and improve the overall success rate of entrepreneurship. Based on the technology acceptance model (TAM) proposed by researcher Davis, the study explores the application of TAM in online entrepreneurship education for new entrepreneurs. First, new entrepreneurs who are users of the online entrepreneurship education platform are selected as research objects, and then the influence of the four factors are studied, including perceived ease of use, perceived usefulness, classroom self-efficacy, and perceived external control. Finally, the hypothesis proposed is tested. Results show that online entrepreneurship education influences the perceived ease of use of the user and perceived credibility: the quality of the online entrepreneurship education has a positive impact on the user's perceived usefulness, interactivity has a positive influence on perceived ease of use and perceived usefulness, and interactivity positively influences the perceived ease of use of the user and perceived credibility. Perceived usefulness, perceived ease of use, and perceived credibility have a positive impact on the behavioral intention of the users. The proposed TAM provides some technical and theoretical support for the application of TAM in online entrepreneurship education for new entrepreneurs.

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“…e optimum duty factor and thermography determine the productivity and quality of titanium alloy [17]. e MRR increased with the increment in the conductivity of the dielectric fluid and over the threshold limit reduces due to upsurge in gap distance [18]. Microcracks were decreased, and the permeability of machined surfaces was improved by suspending a significant quantity of powder at the right proportion [19].…”

Section: Introductionmentioning

confidence: 99%

Improving Sustainability of EDM Sector by Implementing Unconventional Competitive Manufacturing Approach

Anjani²,

Raman

et al. 2022

Advances in Materials Science and Engineering

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In this research work, an attempt was made to machine the titanium (Ti6Al4V) alloy utilizing electric discharge machining technique. The distinct process parameters and its impact on the machining performance were identified using the cause-and-effect diagram (CED). The key process parameters identified by CED diagram were current, pulse on time (Ton), aluminium oxide (Al2O3) powder concentration, and gap distance; experiments were conducted by varying the process parameters, experimental runs were designed using the Taguchi mixed orthogonal array. The experimental results revealed that improvement in material removal rate (MRR) was due to the bridging effect; reduction in tool wear rate (TWR) owing to the expansion of spark gap and enhancement in the surface roughness (Ra) was due to the complete flushing of machined debris. The interaction impact was analysed using the contour plot and with the aid of mathematical modelling experimental fits that were identified and the results were validated utilizing the sensitivity analysis. The obtained results were optimized using the technique for order of preference by similarity to ideal solution (TOPSIS) optimization technique.

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Effect of Process Parameters on Machining Time in PMEDM Cylindrical Shaped Parts with Silicon Carbide Powder Suspended Dielectric

Cited by 8 publications

References 12 publications

Impact of SiC Particle Incorporated Dielectric Medium on Machining Performance of AA7050/SiC/Al₂O₃ Hybrid Composites

Impact of SiC Particle Incorporated Dielectric Medium on Machining Performance of AA7050/SiC/Al₂O₃ Hybrid Composites

Applying Technology Acceptance Model in Online Entrepreneurship Education for New Entrepreneurs

Improving Sustainability of EDM Sector by Implementing Unconventional Competitive Manufacturing Approach

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Effect of Process Parameters on Machining Time in PMEDM Cylindrical Shaped Parts with Silicon Carbide Powder Suspended Dielectric

Cited by 8 publications

References 12 publications

Impact of SiC Particle Incorporated Dielectric Medium on Machining Performance of AA7050/SiC/Al2O3 Hybrid Composites

Impact of SiC Particle Incorporated Dielectric Medium on Machining Performance of AA7050/SiC/Al2O3 Hybrid Composites

Applying Technology Acceptance Model in Online Entrepreneurship Education for New Entrepreneurs

Improving Sustainability of EDM Sector by Implementing Unconventional Competitive Manufacturing Approach

Contact Info

Product

Resources

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Impact of SiC Particle Incorporated Dielectric Medium on Machining Performance of AA7050/SiC/Al₂O₃ Hybrid Composites

Impact of SiC Particle Incorporated Dielectric Medium on Machining Performance of AA7050/SiC/Al₂O₃ Hybrid Composites