Correlation of eddy current signals obtained from EDM notches and fatigue cracks

Camerini, Cláudio; Campos, Laa; Silva, Vitor M.A.; Castro, Daniel Scandiuzzi Valença de; Santos, Rogério; Rebello, J. M. A.; Pereira, Gabriela Ribeiro

doi:10.1016/j.jmrt.2019.08.031

Cited by 8 publications

(9 citation statements)

References 5 publications

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“…The mechanism involves the movement of tables in Cartesian coordinates (X-Y) driven by DC servo motors. The electrode wire is in continuous motion through the workpiece and is ably supported under tension between a pair of wire guides placed at opposite ends of the workpiece, and this continuous motion is carried out by a wire fed spool and collected at the take up spool [15,20]. The lower wire guide is completely stationary but the upper guide movement is ably supported by a U-V table (auxiliary unit), which is displaced based on the lower guide.…”

Section: Machine Specificationmentioning

confidence: 99%

“…Statistical attributes corresponding to machining parameters of WEDM were carried out in correlation to surface roughness [17]. WEDM process parameters and its effect on machining of Titanium alloys were carried out using neural techniques [20]. An empirical understanding of the method was Material removal rate (MRR) and roughness of the surface (R a : average factor) are the most prominent characteristics of the WEDM process, which distinguishes the process along with the factors associated with the machining cycle and the dielectric availed for conducting the machining operation [14].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Each condition of optimization and relations carried out provided a significant outlook to the WEDM process, but a major lacking point existed in the independent relationships of process factors with respect to responses and a major vector discrete outlook to the problem was missing [15,20]. Disparate replicas adopting multi criteria decision making methods have been availed to study the drilling of titanium alloys of higher order by scientists by the availing EDM cutting method [22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

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Experimental Investigation of Wire-EDM Machining of Low Conductive Al-SiC-TiC Metal Matrix Composite

Murari¹,

Selvakumar

Sastry

2020

Metals

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The application of metal matrix composites (Al-SiC-TiC) in aerospace and defense industries have surged in the areas of hull safety, aviation fins, and closure units. The close to ideal solution for generating powdered mixture availing ball milling, for processing of a metal matrix composite of size 24 × 24 × 5.95 cm3 and composition of 75% Al, 10% SiC, and 10% TiC weight composition is 10:1 ball weight ratio, ball size of 8 mm, rotation speed of 250 rpm, and milling time of 4 h. The powdered mixture is compressed to pellet, sintered for two hours, and further silver coated in a physical vapor deposition setup to surge its electrical conductivity for ease of material removal. To obtain a perfect fit and finish, wire electrical discharge machining cycle has been carried out to machine the component under deionized water and oil + wax + paraffin dielectric mediums in 8 A peak current, 0.45 µs pulse on time, and 45 pulse off time as close to ideal solution, obtained by the technique for the order of preference by similarity to the ideal solution (TOPSIS) analysis. A surge is ascertained in kerf width, material removal rate, and surface roughness in oil + wax + paraffin environment in correlation with deionized water by 0.99–12.78%, 0.18–33.97%, and 2.15–36.86% respectively. The surface morphological study indicates a 32.28%, 42.57%, and 45.73% surge in residual compressive stress, surface roughness and corrosion resistance in oil + wax + paraffin dielectric medium in correlation to deionized water.

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Section: Machine Specificationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Experimental Investigation of Wire-EDM Machining of Low Conductive Al-SiC-TiC Metal Matrix Composite

Murari¹,

Selvakumar

Sastry

2020

Metals

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“…The developing technology of manufacturing technique i.e 3D printing technology also employs ECT to assess the integrity of 3D printing products by implanting feromagnetic metallic substance to the 3D printing product, so it assessible by ECT [5]. In assessing welded joints, the success of ECT non-destructive test methods were successful as in the assessment on other conductive metal and so does the researches subject of the SMAW welded joints assessment by ECT technique [6].…”

Section: Introductionmentioning

confidence: 99%

Inspecting Power Network Analysis on Eddy Current Test of SMAW Joints

Rubijanto

Rusnaldy²,

Gunawan³

2022

E3S Web Conf.

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Eddy Current Test (ECT) is proven to be the most reliable non-destructive assessment for electrically conductive materials. This assessment works based on the emerging Eddy Current when an alternating current is induced into conductive materials. The ECT system consists of three elements, i.e. current injection, the pick-up, and the conductive target. This system is then treated as an altered wireless power network between aforementioned elements. The use of alternating current (A/C) in this network provides a wide variety of power spectra for various analysis techniques. This paper introduces novel technique of subsurface crack assessment on SMAW welded joint of stainless steel 316 L by applying network altered response to ECT system. The analysis of the network is done by constructing mathematical models of the frequency domain in each component in the network to achieve the gain of the system. The mathematical model was constructed either for the defectless and the defected speciments, and then both result was compared to investigate and extract the information about the crack. The experiment also performed to confirm the simulation from the modeling. The experiment succeeded to differentiate the size of the subsurface crack on certain working frequencies.

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Model-driven fatigue crack characterization and growth prediction: A two-step, 3-D fatigue damage modeling framework for structural health monitoring

Wang

Yang

et al. 2021

International Journal of Mechanical Sciences

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Correlation of eddy current signals obtained from EDM notches and fatigue cracks

Cited by 8 publications

References 5 publications

Experimental Investigation of Wire-EDM Machining of Low Conductive Al-SiC-TiC Metal Matrix Composite

Experimental Investigation of Wire-EDM Machining of Low Conductive Al-SiC-TiC Metal Matrix Composite

Inspecting Power Network Analysis on Eddy Current Test of SMAW Joints

Model-driven fatigue crack characterization and growth prediction: A two-step, 3-D fatigue damage modeling framework for structural health monitoring

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