Modelling and Experimental Investigation of Laser Assisted Jet Electrochemical Machining

Silva, A.K.M. De; Pająk, P.; Harrison, David K.; McGeough, J. A.

doi:10.1016/s0007-8506(07)60673-8

Cited by 75 publications

(38 citation statements)

References 4 publications

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“…Laser-assisted EJM [38][39][40][41] has been employed as a 'focussing' tool to enhance the conductivity at the centre of the electrolyte jet, through a localised temperature increase. This serves to normalise the effective current density outside of the central machining region to reduce overcut.…”

Section: Profile Fidelity Enhancementsmentioning

confidence: 99%

Transitory electrochemical masking for precision jet processing techniques

Mitchell-Smith

Speidel

Clare

2018

Journal of Manufacturing Processes

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a b s t r a c tElectrochemical jet processing techniques provide an efficient method for large area surface structuring and micro-milling, where the metallurgy of the near-surface is assured and not adversely affected by thermal loading. Here, doped electrolytes are specifically developed for jet techniques to exploit the Gaussian energy distribution as found in energy beam processes. This allows up to 26% reduction in dissolution kerf and enhancements of the defined precision metric of up to 284% when compared to standard electrolytes. This is achieved through the filtering of low energy at discrete points within the energy distribution curve. Two fundamental mechanisms of current filtering and refresh rate are proposed and investigated in order to underpin the performance enhancements found using this methodology. This study aims to demonstrate that a step change in process fidelity and flexibility can be achieved through optimisation of the electrochemistry specific to jet processes.

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Section: Profile Fidelity Enhancementsmentioning

confidence: 99%

Transitory electrochemical masking for precision jet processing techniques

Mitchell-Smith

Speidel

Clare

2018

Journal of Manufacturing Processes

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“…• laser assisted electrochemical machining (LAECM, the reason of combination is to improve accuracy of electrochemical machining) [13][14][15], • electrochemically assisted laser machining (EALBM), the reason of electrochemical effect introduction is improvement the workpiece surface layer quality by minimization of, typical for laser beam machining, heat affected zone [16,17]. The process is carried in similar way to laser drilling or cutting, but the beam is run in electrolyte jet supplied from the jet nozzle connected to negative voltage pole and the workpiece is connected to positive voltage source.…”

Section: The Possibilities Of Laser Radiation and Electrochemical Dismentioning

confidence: 99%

Application of laser and electrochemical interaction in sequential and hybrid micromachining processes

Skoczypiec¹

2015

Bulletin of the Polish Academy of Sciences Technical Sciences

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Abstract. One of the research and development trends in nowadays manufacturing technology is integration of different manufacturing techniques into single machine tool. In the first part of the paper possibilities, goals, reasons and advantages of thermal and electrochemical interaction have been characterized. As literature review indicates such a connection can be realized as sequential or hybrid machining. The second part of the paper focuses on detailed analysis of laser assisted electrochemical process. For this purpose, the mathematical model of workpiece heating has been developed. Based on obtained results and literature review possibilities of technical realization and potential application have been discussed.

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“…[28][29][30][31][32][33][34][35][36][37][38][39][82][83][84][85][86][87][88][89][90][91] The University of Edinburgh, Glasgow Caledonian University, and Philips Dap BV reported hybrid systems that combine focused laser beams for drilling and a jet electrolyte for machining together, as shown in Fig. 8.…”

Section: Subtractive/assistivementioning

confidence: 99%

“…8. [28][29][30]82 The main purpose of this hybrid processes is to improve of the precision and machining efficiency. Using this process, an improvement in precision of 38-65% compare with laser only process was reported, and the volumetric removal rate was increased by 54%.…”

Section: Subtractive/assistivementioning

confidence: 99%

Hybrid manufacturing in micro/nano scale: A Review

Chu

Kim

Lee

et al. 2014

Int. J. of Precis. Eng. and Manuf.-Green Tech.

156

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In this paper, a total of 57 micro and nano scale hybrid manufacturing processes are reviewed. These processes are categorized in terms of process timing and process type. Process timing is one of the most important aspects of manufacturing, and three different process schemes -concurrent, main/assistive (M/S) separate, and main/main (M/M) separate -are considered. The process type is categorized as either geometrically additive or subtractive, and all hybrid processes are categorized into combinations of additive, subtractive, and assistive process. Features and advantages are described for each of these classifications. Machining is found to be the most common process for both micro and nano-scale hybrid manufacturing. Of micro scale hybrid manufacturing schemes, 74.4% use assistive processes as a secondary process because the main purpose of most micro scale hybrid manufacturing is to improve the quality of the process. In nano scale manufacturing, 61.5% of hybrid manufacturing schemes employ assistive processes, since these processes typically focus on the fabrication of parts that are difficult to fabricate using a single, existing process. Based on a summary of published work, future trends in hybrid manufacturing at the micro and nano scale are suggested.

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Modelling and Experimental Investigation of Laser Assisted Jet Electrochemical Machining

Cited by 75 publications

References 4 publications

Transitory electrochemical masking for precision jet processing techniques

Transitory electrochemical masking for precision jet processing techniques

Application of laser and electrochemical interaction in sequential and hybrid micromachining processes

Hybrid manufacturing in micro/nano scale: A Review

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