Influence of the WEDM process on the fatigue behavior of Inconel® 718

Ayesta, I.; Izquierdo, B.; Flaño, O.; Sánchez, J.A.; Albizuri, Joseba; Avilés, Rafael

doi:10.1016/j.ijfatigue.2016.07.011

Cited by 72 publications

(28 citation statements)

References 42 publications

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“…Kerosene is one of the commonly used dielectric due to its excellent dielectric feature (for EDM), availability, and low cost. Moreover, light hydrocarbon oils like paraffin, transformer oil, and triethylene glycol (with 30-40% water) also can be used as dielectrics for EDM [6,7]. Every electrostatic field requires some dissociative withstand capability against any applied field, and it should allow charge carriers to pass when the field potential exits the value of dielectric strength.…”

Section: Theory Of Dielectricsmentioning

confidence: 99%

Feasibility assessment of some alternative dielectric mediums for sustainable electrical discharge machining: a review work

Das

Paul

Doloi

2020

J Braz. Soc. Mech. Sci. Eng.

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Low removal rate, high power consumption, and dependency on conventional fuels (kerosene as a dielectric) are some premier issues that keep the sustainability index of EDM low, though it has huge acceptability and popularity mostly in aviation sectors and biomedical instrumentation to machine some extensively hard ferrous and nonferrous metal/metal alloys. Besides these, the thermal agitation inside the fusion/machining zone partially burns the dielectrics and tool-workpiece-metal, which evolve some oxides/monoxides. These evolved gases promote an unhygienic breathing atmosphere, which is very much harmful to the operator's health. Sometimes because of inadequate flushing pressure and velocity, carbon particles deposited inside the crater makes the spark unstable and releases carbon monoxide when the temperature exceeds its melting point. According to ISO 14000, every manufacturing process must be comprised of the sustainability criteria, which maintains a compromised balance between the economic, environmental, and social aspects, including the issue of the operator's health. But in real practices, it is very tough to maintain a stoichiometric balance between all these constraints. The article intensely focuses on the issue of emergence of gases during machining and tries to promote the utility of some alternative vegetable oil-based dielectrics, which are experimentally justified as a potent alternative of conventional kerosene. Apart from these, it includes some comparative talks on dielectric nature and their impacts on the responses and surface properties. Finally, this article highlights some compromise solutions which are probably capable of mitigating the hurdles to some extent, so that the sustainable machining can be encouraged in real sense.

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Section: Theory Of Dielectricsmentioning

confidence: 99%

Feasibility assessment of some alternative dielectric mediums for sustainable electrical discharge machining: a review work

Das

Paul

Doloi

2020

J Braz. Soc. Mech. Sci. Eng.

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“…Authors demonstrated a super superior hydrophobic property of WEDM machined grooves of different depth and stated that increasing the depth of groove will likely prevent water droplet from wetting the groove [76]. Ayesta et al [80] compared the fatigue behaviour of Inconel 718 material machined byusing WEDM process and compared it with components manufactured through a grinding process. Authors proposed that at high fatigue cycles, the components machined through WEDM process exhibited 10% lesser fatigue strength than that of the grounded component.…”

Section: Wedm Of Advanced Materialsmentioning

confidence: 99%

“…Inference Rhoney et al [22] Truing of metal bonded diamond grinding wheel Badami et al [15] Fine pitch threads generated on superinvar material 40 TPI threads were produced Miller et al [21] Machining of porous metal foams, metal bonded diamond grinding wheel, sintered Nd-Fe-B magnets, and carbon-carbon bipolar plates Miller et al [21], [23][24][25] Machining of polished single crystal silicon (oil and water as dielectric medium); contouring of polished single crystal silicon plates Yu et al [71] Machining of poly-crystalline silicon using auxiliary pulse supply Lee et al [20] Machining of n-type high purity germanium (HP Ge) Yeh et al [72] Machining of polycrystalline silicon using phosphorous as dielectric medium Cheng et al [16] Generation of helical profiles on ultra-hard materials Gupta and Jain [75] Manufacture a miniature spur gear having total profile deviation of 13.20 µm, total lead deviation of 5.40 µm, and average surface roughness of 1.00 µm Greer et al [74] Parametric study on magnetic property of NdFeB permanent magnets material Hou et al [73] Parametric study on machining of zirconia Bae et al [76] Manufacture deep grooves of different depth to enhance super superior hydrophobic property Bobbili et al [77] Machinability of hot pressed boron carbide material Dongree et al [17] Silicon wafer slicing Gee et al [18], Gee et al [19] Studied the variation in thickness of deterioration layer of monocrystalline silicon Ayesta et al [80] Compared the fatigue life of WEDMed Inconel 718 material with that of ground specimen Joshi et al [82] Manufacture of ultra-thin silicon wafer with 140.5 m slicing size at the rate of 0.96 mm/min…”

Section: Referencesmentioning

confidence: 99%

A progress review in wire electrical discharge machining process

Balan¹,

Giridharan²

2017

Int. J. Automot. Mech. Eng.

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Wire Electrical Discharge Machining (WEDM) is an electrothermal non-traditional machining process used for machining electrically conductive materials that are difficult to machine. Material removal in WEDM is by means of spark erosion. WEDM is proven to be the alternative for producing complex parts with higher degree of dimensional accuracy and better surface finish. Over the years, a significant amount of research was globally carried out to explore the WEDM process capability. This paper aims to explore the research work carried on parametric influence of WEDM process variables on various output performance measures. The paper also highlights various modelling techniques to predict optimal machining conditions and explore the feasibility of applying WEDM process to machine advanced materials. Combined technology that benefits from the virtues of WEDM and conventional method is also highlighted in this paper. The final section discusses the development and possible research trend in WEDM process.

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“…In additive SLM parts, all topics related to the influence of defects and surface quality are still under study. Some studies [13][14][15] define coefficients to be applied in several surfaces affected by laser power and polishing; other works [16] aimed at building orientation, heat treatment, surface quality, energy density, and service condition of the final product in steel SLMed components. Surface state was and it will be key in fatigue.…”

Section: Introductionmentioning

confidence: 99%

A Methodology to Evaluate the Reliability Impact of the Replacement of Welded Components by Additive Manufacturing Spare Parts

Coro

Macareno

Aguirrebeitia

et al. 2019

Metals

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This article shows a method for inspection scheduling of structures made by additive manufacturing, derived from reliability function evaluations and overhaul inspection findings. The routine was an adaption of an existing method developed by the authors for welded components; in this latter case, the routine used a stochastic defect-propagation analysis for pores and lack of fusion defects of additive manufacturing process, instead of the weld liquation crack. In addition, the authors modified the specific stress-intensity factor for welded components to consider additive manufacturing-related material property variability, defect distributions, flaw-inspection capabilities, and component geometry. The proposed routine evaluated the failure rate and inspection intervals using the first-order reliability method (FORM + Fracture) to alleviate the computational cost of probabilistic defect-propagation analysis. The proposed method is one of the first applying reliability concepts to additive manufacturing (AM) components. This is an important milestone, since in 10 years, additive manufacturing is to be used for 30% of the components in aeroengines. This paper presents an example comparing the reliability and cost of a jet engine, with components either made by additive manufacturing or welded parts; in the process, the reliability AM-key features are found, and overhaul schedules of an airplane fleet made with AM components are defined. The simplicity and performance demonstrated in the comparison make the proposed method a powerful engineering tool for additive manufacturing assessment in aeronautics.

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Influence of the WEDM process on the fatigue behavior of Inconel® 718

Cited by 72 publications

References 42 publications

Feasibility assessment of some alternative dielectric mediums for sustainable electrical discharge machining: a review work

Feasibility assessment of some alternative dielectric mediums for sustainable electrical discharge machining: a review work

A progress review in wire electrical discharge machining process

A Methodology to Evaluate the Reliability Impact of the Replacement of Welded Components by Additive Manufacturing Spare Parts

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