A Study to Achieve Minimum Surface Roughness in Wire EDM

Bhatia, Anmol; Kumar, Sanjay; Kumar, Parveen

doi:10.1016/j.mspro.2014.07.509

Cited by 9 publications

(3 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…By comparing the roughness of the rocks of the fractured reservoirs and the roughness of the used steel cores, we can expect to reduce the formation damage caused by the penetration of the drilling fluid into the formation. It means that the higher the roughness, the lower the fluid penetration and, as a result, the lower the damage to the formation . The reason for this is that the bubbles are more easily trapped in the scratches of the surfaces, and the higher the roughness, the more and deeper the scratches, and the accumulation of bubbles will be easier.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Experimental Investigation on the Impacts of Fracture Roughness and Fluid Composition on the Formation of Bubble Bridges through the Microbubble Fluid Flow

et al. 2022

View full text Add to dashboard Cite

The colloidal gas Aphron (CGA) drilling fluids are an alternative to ordinary drilling mud to minimize formation damage by blocking rock pores with microbubbles in low-pressure or depleted reservoirs. Fractured formations usually have different characteristics and behavior in contrast to conventional ones and need to be investigated for Aphron applications. In this research, a series of core flood tests were conducted to understand the factors controlling the pore-blocking mechanisms of microbubbles in fractured formations. For the first time, a synthetic metal plug was used to simulate the fracture walls and eliminate the formation matrix effect. This study analyzed the effects of three fluid compositions, considering the polymer and surfactant concentrations at reservoir conditions, including temperature and overburden pressure. Additionally, fracture surface roughness as one of the parameters affecting the microbubble fluid penetration through the fracture path and bubble blockage were studied. The results indicated that microbubble fluid composition would not affect the bubble size or blockage probability. The different stable microbubble fluids resulted in the same pattern and conditions. Besides, fluid penetration would be more challenging if the fracture roughness decreased. Due to the accumulation of bubbles and the fact that some of them were trapped in the fracture’s rough surface, the blockage possibility increased. According to the range of roughness for the steel core in previous studies and compared with the roughness of carbonate reservoir rocks, the roughness of fractured reservoir rocks is much higher than that of the steel surface. Accordingly, the observed trend in the experiments showed that when it is possible to form a bubble bridge in steel cores, then in carbonate rocks, we will definitely see blockage with any roughness, provided that other parameters are acceptable.

show abstract

Section: Resultsmentioning

confidence: 99%

“…It means that the higher the roughness, the lower the fluid penetration and, as a result, the lower the damage to the formation. 23 The reason for this is that the bubbles are more easily trapped in the scratches of the surfaces, and the higher the roughness, the more and deeper the scratches, and the accumulation of bubbles will be easier.…”

Section: Resultsmentioning

confidence: 99%

Experimental Investigation on the Impacts of Fracture Roughness and Fluid Composition on the Formation of Bubble Bridges through the Microbubble Fluid Flow

et al. 2022

View full text Add to dashboard Cite

show abstract

“…It was observed that pulse on-time, peak current, and voltage had a significant impact on SR, while the impact of pulse off-time was insignificant for this response. Bhatia et al [22] evaluated the effect of WEDM input parameters on surface roughness while machining high-carbon Cr steel using the WEDM process. Brass wire was used in experiments.…”

Section: Introductionmentioning

confidence: 99%

Evaluating Material’s Interaction in Wire Electrical Discharge Machining of Stainless Steel (304) for Simultaneous Optimization of Conflicting Responses

et al. 2019

View full text Add to dashboard Cite

Stainless steel (SS 304) is commonly employed in industrial applications due to its considerable corrosion resistance, thermal resistance, and ductility. Most of its intended applications require the formation of complex profiles, which justify the use of wire electrical discharge machining (WEDM). However, its high thermal resistance imposes a limitation on acquiring adequate surface topography because of the high surface tension of the melt pool, which leads to the formation of spherical modules; ultimately, this compromises the surface quality. Furthermore, the stochastic nature of the process makes it difficult to optimize its performance, especially if more than one conflicting response is involved, such as high cutting speed with low surface roughness and kerf width. Therefore, this study aimed to comprehensively investigate the interaction of SS 304 and WEDM, with a prior focus on simultaneously optimizing all the conflicting responses using the Taguchi-based grey relational approach. Analysis of variance (ANOVA) revealed that the current was the most significant parameter for cutting speed and kerf, whereas roughness, voltage (45%), drum speed (25.8%), and nozzle offset distance (~21%) were major contributing factors. SEM micrographs showed that optimal settings not only ensured simultaneous optimization of the conflicting responses but also reduced the number and size of spherical modules.

show abstract

Near Net Shape Machining by Micro-EDM and Micro-WEDM

Saleh

Bahar

2018

Materials Forming, Machining and Tribology

View full text Add to dashboard Cite

A Study to Achieve Minimum Surface Roughness in Wire EDM

Cited by 9 publications

References 4 publications

Experimental Investigation on the Impacts of Fracture Roughness and Fluid Composition on the Formation of Bubble Bridges through the Microbubble Fluid Flow

Experimental Investigation on the Impacts of Fracture Roughness and Fluid Composition on the Formation of Bubble Bridges through the Microbubble Fluid Flow

Evaluating Material’s Interaction in Wire Electrical Discharge Machining of Stainless Steel (304) for Simultaneous Optimization of Conflicting Responses

Near Net Shape Machining by Micro-EDM and Micro-WEDM

Contact Info

Product

Resources

About