An experimental investigation of cylindrical wire electrical discharge turning process

Haddad, Mohammad Jafar; Alihoseini, Fereshteh; Hadi, Mostafa; Hadad, Meysam; Tehrani, Alireza Fadaei; Mohammadi, Ali

doi:10.1007/s00170-009-2171-z

Cited by 43 publications

(19 citation statements)

References 16 publications

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“…In the area of laser micro-turning process, few research investigation has been reported in the literature. (Haddad et al 2008(Haddad et al , 2010. ), biomedical (orthopedic implants particularly in hip replacement surgery) to aerospace (seals for gas turbine engines, fuel line assembly, and thermocouples) and military (modern weapons, ceramic armor, etc.)…”

Section: Laser Micro-turning Processmentioning

confidence: 99%

Lasers Based Manufacturing

Joshi¹,

Dixit²

2015

Topics in Mining, Metallurgy and Materials Engineering

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Section: Laser Micro-turning Processmentioning

confidence: 99%

Lasers Based Manufacturing

Joshi¹,

Dixit²

2015

Topics in Mining, Metallurgy and Materials Engineering

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“…Key advantages are the absence of a cutting force and the flexibility for machining. Haddad et al (2010) showed that EDM could machine materials with small-size features and high precision. Although EDM leads to the thermal loads in the workpiece material which may cause mechanical property modification, Liu et al (2016) found that the temperature decreased significantly to a low value within the depth of 20 m  , which is rather small compared to the thickness of specimens in this paper.…”

Section: The Crackmentioning

confidence: 99%

Dynamic behaviour of aluminium alloy plates with surface cracks subjected to repeated impacts

Duan

Liu

Wang³

et al. 2018

Ships and Offshore Structures

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Highlights The dynamic response of aluminum alloy plates repeatedly impacted by a rigid impactor has been investigated experimentally and theoretically. The permanent deformations of an impacted plate increase with each additional impact, and reach the largest values when the surface crack reaches the other side of the plate. The load-carrying capacity of a plate with a surface crack is sensitive to the crack length especially when the crack is shorter than the impactor diameter. The load-carrying capacity of a plate with a surface crack is also sensitive to the depth of the surface crack.  Within the scope of the test program, the surface cracks had rather moderate influences on the permanent deformations. The analytical formulae of Jones was modified with the stresses determined based on the true stresses. Discussions were also given to some assumptions in this refined analytical formula. AbstractThis paper investigates the behavior of aluminum plates with and without initial cracks under repeated impacts. Three series of repeated impact tests were conducted to study the behaviors of circulate plates that do not have any cracks (series B), have surface cracks with varying length (series L), and have cracks varying depths (series D). A hammer was dropped from the same height with a constant initial striking energy 60J for all tests. For each test specimen, the hammer was dropped nine times to simulate the scenario of repeated impacts. It was observed that plates with larger cracks carried smaller impact forces and assumed larger deformations. When the crack length was larger than the diameter of impactor, the responses of aluminum alloy plates became less sensitive to the crack length. With the increase in impact number, the effects of crack lengths and depths on dynamic behavior of aluminum alloy plates became much more significant. Predictions using a rigid-plastic theoretical model were compared with these test results, and discussions were given to the assumptions of this theoretical model. With the stresses determined based on the true strain-stress curve obtained by standard tension test, the refined analytical formula provides better predictions that agree well with the lab tests.

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“…Experiments showed that the number of unwanted arcs and arc regions is higher in WEDT, thus reducing MRR. The effect of machining parameters on SR and roundness in CWEDT of D3 (AISI) tool steel was examined by Haddad et al (2010). Kuruvila and V. (2011) presented the study that aims to determine parametric influence and optimum process parameters of WEDM.…”

Section: Literature Review On Cwedtmentioning

confidence: 99%

Investigation and modelling of process parameters and workpiece dimensions influence on material removal rate in CWEDT process

Gjeldum

Bilić

Veža

2014

International Journal of Computer Integrated Manufacturing

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Cylindrical wire electrical discharge turning (CWEDT) is a special form of wire electrical discharge machining (WEDM) process, which uses submerged rotation spindle as a clamping device for workpiece rotation in order to produce cylindrical parts. This study aims at determining influence on material removal rate (MRR) of CWEDT as an objective function. In the preliminary experiments, the widely used X5CrNi18-10 (DIN) and hard machinable S390PM (DIN) were used. The results of preliminary experiments showed that the type of steel is not the factor that has a significant influence on MRR. Pulse maximum current, pulse pause time, rotation speed, length of discharge area and cutting radius were used in MRR mathematical modelling by neural network programming. The results of the study exhibit that among the machining parameters, the pulse maximum current has the strongest influence on MRR. When the pulse maximum current increases, MRR increases as well. The discharge area length has an influence on MRR only on higher pulse maximum current values, and by the increase of the discharge area length, the MRR also increases. The derived mathematical model for MRR, which was finally validated and tested, enables calculation of complex cylindrical part production machining time for the given experimental set-up condition.

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An experimental investigation of cylindrical wire electrical discharge turning process

Cited by 43 publications

References 16 publications

Lasers Based Manufacturing

Lasers Based Manufacturing

Dynamic behaviour of aluminium alloy plates with surface cracks subjected to repeated impacts

Investigation and modelling of process parameters and workpiece dimensions influence on material removal rate in CWEDT process

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