Investigations into Cutting Forces and Surface Roughness in Micro Turning of Titanium Alloy Using Coated Carbide Tool

Jagadesh, T.; Samuel, G.L.

doi:10.1016/j.mspro.2014.07.496

Cited by 17 publications

(8 citation statements)

References 13 publications

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“…Regards to the effect of tool geometries on measured surface roughness Kumar et al [7] reported that nose radius has a significant effect on surface roughness. Jagadesh et al [17] increases at values of feed rates and depths of cut lower than cutting edge radius of tool. Khan et al [18] investigated turning of titanium-based alloys with a novel chamfered insert, the results showed that chamfered insert recorded good results on measured surface roughness.…”

Section: ________________________________________________mentioning

confidence: 94%

Experimental investigation of generated surface roughness in hard turning of Ti6Al4V using coated ceramic and CBN inserts

Abdelnasser

Barakat

Elsanabary

et al. 2020

Port-Said Engineering Research Journal

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Surface finish of machined parts is a significant quality mark for a range of applications such as aerospace, automotive, power transmission and generation. Therefore, optimization of surface roughness is the key factor for reliability in machining difficult-to-cut materials such as titanium-based alloys. In this study, an investigation into hard turning of Ti6Al4V alloys with varying process parameters and cutting tool materials was carried out. This study aims to compare the generated surface roughness when turning Ti6Al4V alloys using CBN and coated ceramic inserts, independently, under the same values of feed rate, cutting speed and depth of cut. The experiments were designed using Taguchi L9 and the exponential results were examined by the analysis of variance (ANOVA). The effect of process parameters and their interactions on generated surface roughness was evaluated for the two inserts. It was found improvement of surface roughness by 34% was achieved when using coated ceramic insert compared with the results obtained using CBN insert under the same range cutting conditions. CBN insert gave a better result at smallest depth of cut (0.15 mm), low feed rate (0.1 mm/rev) and high cutting speed (100 m/min) while coated ceramic tool gave a minimum surface roughness at depth of cut (0.2 mm), feed rate (0.1 mm/rev) and high cutting speed (100 m/min).

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Section: ________________________________________________mentioning

confidence: 94%

Experimental investigation of generated surface roughness in hard turning of Ti6Al4V using coated ceramic and CBN inserts

Abdelnasser

Barakat

Elsanabary

et al. 2020

Port-Said Engineering Research Journal

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“…The two most important geometries that affect the microtool stiffness are the tool diameter and flute length assuming the number of flutes have been chosen. It can be shown that the torsional stiffness of a mill/drill is proportional to (tool diameter) 4 and (flute length) À2 . For a specific mill/drill tool dimension, we must adjust the milling/drilling strategy accordingly to avoid tool breakage.…”

Section: Size Effectmentioning

confidence: 99%

“…When machining with depth of cut below the critical level, the material is then being plowed at negative effective rake angle. This results in high cutting force, high specific energy, fast tool wear, rough surface finish, and significant burr [4]. In subsequent passes when the cumulative depth is above the critical depth of cut, then a tool can remove materials as chips and the cycle repeats.…”

Section: Tool Sharpnessmentioning

confidence: 99%

Micromachining of Advanced Materials

Hung¹,

Corliss²

2019

Micromachining

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Market needs often require miniaturized products for portability, size/weight reduction while increasing product capacity. Utilizing additive manufacturing to achieve a complex and functional metallic part has attracted considerable interests in both industry and academia. However, the resulted rough surfaces and low tolerances of as-printed parts require additional steps for microstructure modification, physical and mechanical properties enhancement, and improvement of dimensional/form/surface to meet engineering specifications. Micromachining can (i) produce miniature components or microfeatures on a larger component, and (ii) enhance the quality of additively manufactured metallic components. This chapter suggests the necessary requirements for successful micromachining and cites the research studies on micromachining of metallic materials fabricated by either traditional route or additive technique. Micromachining by nontraditional techniques-e.g., ion/electron beam machining-are beyond the scope of this chapter. The chapter is organized as following:

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“…In the micro-turning of the Ti-6Al-4V titanium alloy, Jagadesh and Samuel [12] observed that the increase of cutting speed caused a reduction in cutting forces when the uncut chip thickness was higher than the cutting edge radius because the temperature in the tool chip interface increased. In the analysis of the micro-cutting of the Ti-6Al-4V titanium alloy with an uncut chip thickness of 1 μm, Ducobu et al [13] observed that the thrust force is larger than the cutting force, which goes against the conventional cutting theory.…”

Section: Introductionmentioning

confidence: 99%

Behaviour of a biocompatible titanium alloy during orthogonal micro-cutting employing green machining techniques

Lauro

Brandão

Filho

et al. 2018

Int J Adv Manuf Technol

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The sustainability of a process is the objective of modern industries aiming to reduce waste in production, since consumers require high quality and efficiency with fair price. Thus, a good understanding of the process should be its starting point. The manufacture of dental implants is an example in which waste reduction is important for the reduction of prices due to the demand for great quality and accuracy. This study observed the behaviour of sustainable micro-cutting applied to the Ti-6Al-7Nb titanium alloy, considering the ploughing effect on minimum quantity lubrication (MQL) and high-speed machining (HSM) conditions. When compared with dry condition and low-speed cutting in orthogonal micro-cutting, the use of HSM in dry cutting was more efficient than using MQL. The dry condition presented lower surface roughness, whilst the cooled/lubricated condition presented lower burr formation.

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Investigations into Cutting Forces and Surface Roughness in Micro Turning of Titanium Alloy Using Coated Carbide Tool

Cited by 17 publications

References 13 publications

Experimental investigation of generated surface roughness in hard turning of Ti6Al4V using coated ceramic and CBN inserts

Experimental investigation of generated surface roughness in hard turning of Ti6Al4V using coated ceramic and CBN inserts

Micromachining of Advanced Materials

Behaviour of a biocompatible titanium alloy during orthogonal micro-cutting employing green machining techniques

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