Effect of electrode material in wire electro discharge machining characteristics of Ti50Ni50−xCux shape memory alloy

Manjaiah, M.; Narendranath, S.; Basavarajappa, S.; Gaitonde, V. N.

doi:10.1016/j.precisioneng.2015.01.008

Cited by 79 publications

(46 citation statements)

References 13 publications

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“…Figure 4(c) indicates that surface roughness decreases with increase in servo voltage, during this may be less amount of material are melted on machined surface; as a result of reduced spark intensity and melted material can be easily flushed away from the machined surface through dielectric fluid jet leading to lower surface roughness. 4 Surface roughness is almost constant at all specific levels of servo feed which can be seen in Fig. 4(d).…”

Section: B Analysis Of Surface Roughnessmentioning

confidence: 77%

“…Adding third element in NiTi alloys by replacing Ti or Ni has an extensive effect on their phase transformation behavior and properties of the material. 4,5 Rui and Fu studied the effect of Co addition as a substitute for Ni on the phase transformation behavior and mechanical properties with different percentages of Co 2, 4, 6, 8, and 10 in TiNi alloy. 6 From the literature it was found that Ti 50 Ni 40Àx Co x (x 5 2-10%) exhibit two step phase transformation and exhibited good ductility with a lower stress plateau because of stress-induced martensite and martensite reorientation at room temperature deformation.…”

Section: Introductionmentioning

confidence: 99%

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An experimental study of influence of wire electro discharge machining parameters on surface integrity of TiNiCo shape memory alloy

2017

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Shape memory alloys (SMAs) are unique class of smart materials with excellent physical, mechanical and biomedical properties, which have wide applications in several fields such as aerospace, robotics, biomedical, and dental etc. These alloys are well known for exhibiting shape memory effect (SME) and pseudoelasticity (PE), it is a well-established fact that they are required to be processed into functioning parts. The conventional machining affects the internal properties of shape memory alloys and hence, it is reported that nonconventional machining techniques are more suitable. Wire electro discharge machining (WEDM) is one of the nonconventional machining processes for machining complicated shapes without hampering the internal properties of such type of materials. In the present experimental investigation, wire electro discharge machining of Ti 50 Ni 40 Co 10 shape memory alloy (SMA) has been carried out and machining performances such as surface roughness (SR), and material removal rate (MRR) have been evaluated. Experimental results exposed that pulse on time, pulse off time and servo voltages are most influential process parameters on the responses. The machined surface has been characterised with respect to microstructure, microhardness, and phases formed.

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Section: B Analysis Of Surface Roughnessmentioning

confidence: 77%

Section: Introductionmentioning

confidence: 99%

An experimental study of influence of wire electro discharge machining parameters on surface integrity of TiNiCo shape memory alloy

2017

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“…Moreover, brass is common material used as wire compared to copper, molybdenum and tungsten as more cost effective electrode material. However, in recent years, the development of alloys and coating technologies have led to more robust and improved materials, such as, zinc coated brass wire [2]. The coated wire also helps to protect the brass from thermal shock and broken [3].…”

Section: Introductionmentioning

confidence: 99%

Process Optimization of EDM Cutting Process on Tool Steel using Zinc Coated Electrode

et al. 2017

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Abstract. In WEDM machining process, surface finish quality depends on intensity and duration of spark plasma. Electrode wire diameter has significant effect on the spark intensity and yet the studies on this matter still less. Therefore, the main objectives of this studies are to compare the different diameters of zinc coated and uncoated brass electrode on H13 tool steel surface roughness. The experiments were conducted on Sodick VZ300L WEDM and work piece material of tool steel AISI H13 block. Electrode of zinc coated brass with diameters of 0.1 mm, 0.2 mm, 0.25 mm and uncoated brass 0.2 mm were used. The surface roughness of cutting was measured using the SUR-FTEST SJ-410 Mitutoyo, surface roughness tester. The results suggest that better surface roughness quality can be achieved through smaller electrode wire diameter. The zinc coated improves flushing ability and sparks intensity resulting in better surface finish of H13 tool steel. New alloys and coating materials shall be experimented to optimized the process further.

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“…Authors also studied the feasibility of machining TiNiCu shape memory alloy by using plain and zinc coated brass wire. The zinc coated brass wire gave better machining characteristics compared to that of plain brass wire Manjaiah et al [59]. Hatami et al [53] attempted to study the characterisation of wire electrical discharge machining of powder metallurgical cold work tool steels, namely Vancron 40 and Vanadis 10 by using XRD, SEM, and X-ray photoelectron spectroscopy (XPS).…”

Section: Surface Characteristicsmentioning

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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Effect of electrode material in wire electro discharge machining characteristics of Ti50Ni50−xCux shape memory alloy

Cited by 79 publications

References 13 publications

An experimental study of influence of wire electro discharge machining parameters on surface integrity of TiNiCo shape memory alloy

An experimental study of influence of wire electro discharge machining parameters on surface integrity of TiNiCo shape memory alloy

Process Optimization of EDM Cutting Process on Tool Steel using Zinc Coated Electrode

A progress review in wire electrical discharge machining process

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