Combination of electric discharge machining and laser ablation in microstructuring of hardened steels

Fleischer, Jürgen; Schmidt, Jan Philipp; Haupt, Sebastian

doi:10.1007/s00542-006-0095-1

Cited by 30 publications

(12 citation statements)

References 4 publications

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“…As can be seen in the left diagram high processing speeds To efficiently use the benefits and eliminate the disadvantages of both processes without reclamping a combination of EDM-milling and laser ablation in one machine tool is currently being developed. An earlier approach with a combination of die-sinking-EDM and laser ablation showed that the processing time of certain parts can be reduced by more than 50% (Fleischer et al 2006b). …”

Section: Unification Of Laser and Edm Ablation In One Single Machine mentioning

confidence: 97%

Process parameter analysis in ablating micro-mold manufacturing

2008

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The accuracy and process reliability of both laser ablation and EDM depend on various influences like machine tool performance, temperature, material properties and process parameters. This paper focuses on the variation of the most important process parameters to reduce surface roughness and machining time. For the experiments standard tool steel (X38CrMoV5-1) was used. In the following the variation of process parameters is described and validated by selected machining examples for EDM and laser ablation, respectively.

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Section: Unification Of Laser and Edm Ablation In One Single Machine mentioning

confidence: 97%

Process parameter analysis in ablating micro-mold manufacturing

2008

Self Cite

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“…Here, combined and single manufacturing technologies are utilized, e.g. wire-electrical discharge machining to fabricate shaped electrodes for diesinking EDM and laser ablation for cutting and drilling or to fabricate cavities [1]. EDM is mainly used to machine difficult-to-machine materials and high strength temperature resistant alloys.…”

Section: Elk Asia Pacific Journals -Special Issue Isbn: 978-81-930411mentioning

confidence: 99%

Optimization of Process Parameters of Electric Discharge Machining of En44 Tool Steel for Making Circular Hole

2016

Arimpie - 2016

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Abstract-This paper presents an experimental investigation of Electro Discharge Machining (EDM) of EN44 tool steel for making circular hole. Nine samples of work-piece material (EN44 tool steel) were drilled by copper drill using electric discharge drilling process. Current, Pulse on time (Ton), Pulse off time (Toff), and drill diameter are taken as input parameters and material removal rate (MRR) and tool wear rate (TWR) as output parameters. The results have revealed that drill diameter is the most influencing parameters for MRR and TWR. Taguchi methodology was used for optimization of MRR and TWR. L9 orthogonal array (OA) has been used to design the experiment.

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“…Micro-EDM (Electrical Discharge Machining) can be considered as one of the most promising nonconventional micro-machining techniques due to its ability to machine high aspect ratio micro holes as well as complex 3D shapes in any conductive material [1][2][3] The technology behind EDM consists in two electrodes (also known as the tool and the workpiece) that are immerged in a dielectric fluid and submitted to an electrical current. As the distance between the electrodes diminishes, the open gap voltage increases until it reaches the breakdown voltage of the dielectric at which point a discharge occurs.…”

Section: Introductionmentioning

confidence: 99%

Estimating the energy repartition in micro electrical discharge machining

Bigot

D’Urso

Pernot

et al. 2016

Precision Engineering

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International audienceThis paper presents a new approach for the recording of the total quantity of energy exchanged during the micro electrical discharge machining (EDM) process. In particular, this approach allows for the estimation of the percentage of energy absorbed by the two electrodes (tool and workpiece) using a combination of theoretical models and experimental results, thanks to an advanced discharges measuring approach. An experimental campaign was executed on a Sarix SX200 micro-EDM machine with a tungsten carbide tool electrode. In particular, the process was analyzed for two different electrode shapes, a triangular and a rectangular based parallelepipeds, and two sets of machining parameters. After the execution of the experimental campaign it estimate the total amount of energy that occurred during the entire die sinking process. The energy effectively lost into the tool, into the workpiece and into the dielectric was estimated from the measurement of the volume of material actually removed both from the tool and from the workpiece. The preliminary results appears to fit those presented in the literature and the validity of several theoretical crater models was then assessed. The validation of the presented acquisition method could enable the use of information related to energy repartition in the simulation of the micro-EDM process

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Combination of electric discharge machining and laser ablation in microstructuring of hardened steels

Cited by 30 publications

References 4 publications

Process parameter analysis in ablating micro-mold manufacturing

Process parameter analysis in ablating micro-mold manufacturing

Optimization of Process Parameters of Electric Discharge Machining of En44 Tool Steel for Making Circular Hole

Estimating the energy repartition in micro electrical discharge machining

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