Process Mechanics and Surface Integrity Induced by Dry and Cryogenic Machining of AZ31B-O Magnesium Alloy

Outeiro, José; Rossi, Frédéric; Fromentin, Guillaume; Poulachon, Gérard; Germain, Guénaël; Batista, A. C.

doi:10.1016/j.procir.2013.06.138

Cited by 41 publications

(26 citation statements)

References 11 publications

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“…However, the good machinability of magnesium facilitates the use of other types of tools. For instance, carbide tools were used with good results in several works [56,58,59].…”

Section: Introductionmentioning

confidence: 99%

Machinability of Magnesium and Its Alloys: A Review

Carou

Rubio

Davim

2014

Materials Forming, Machining and Tribology

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In the last decades, the interest for magnesium has increased notably. In particular, the need for weight reduction in the automotive industry has made magnesium a suitable material to replace traditional structural materials because of its low density. But, in addition, magnesium is also finding applications in different sectors as aeronautics, electronics, medical or sports. Thus, machining of magnesium is a topic of great interest for industry and researchers. In the present work, an introduction to the main topics on magnesium machining is presented. The text covers from general topics of magnesium to more specific ones related with the machining process. In this sense, an approximation to the properties of magnesium, magnesium alloys and metal matrix composites of magnesium, and some applications are presented to give a general overview of magnesium. After that, the machining of magnesium is covered addressing general issues and more specific particularities of magnesium machining, such as the ignition risk. To conclude, a brief review of some of the main experimental investigations on magnesium machining is presented, covering drilling, milling and turning processes. In these studies, the machining process is assessed using indicators such as surface finish, temperature or tool wear.

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“…However, the good machinability of magnesium facilitates the use of other types of tools. For instance, carbide tools were used with good results in several works [56,58,59].…”

Section: Introductionmentioning

confidence: 99%

Machinability of Magnesium and Its Alloys: A Review

Carou

Rubio

Davim

2014

Materials Forming, Machining and Tribology

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“…Moreover, its location (d max ) is moved further from surface. No changes were observed in the residual stress value closer to the surface (σ surf ), but previous studies [9] showed that this value may becomes less compressive with the increase of the cutting speed. …”

Section: Resultsmentioning

confidence: 74%

“…For each figure the cutting speed is slightly different between dry and cryogenic cutting conditions, but this cutting speed difference isn't enough to affect the forces and temperatures, thus also not enough to affect Advanced Materials Research Vol. 996the residual stresses [9]. Fig.…”

Section: Influence Of Cooling Conditions (Dry Vs Cryogenic)mentioning

confidence: 98%

“…Table 1 resumes the influence of the cutting regime parameters (v c and h 1 ), tool geometry (r n and γ) and cooling conditions (dry and cryogenic) in the in-depth residual stress profile (σ surf , σ max and d max ). In general, the use of more aggressive cutting conditions (higher v c , higher h 1 , larger r n , negative γ and cryogenic cooling), which induce more plastic deformation at machined surface layers [9], will increase the compressive residual stresses in the machined surface and subsurface. However, some differences can be detected between the application of high values of the cutting regime parameters and the use of tools having a larger r n and negative γ.…”

Section: Influence Of Cooling Conditions (Dry Vs Cryogenic)mentioning

confidence: 99%

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Residual Stresses Induced by Dry and Cryogenic Cooling during Machining of AZ31B Magnesium Alloy

Outeiro

Batista²,

Marques

2014

AMR

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Abstract. The major challenge of the Mg alloys has been their unsatisfactory corrosion resistance, which can be enhanced by improving the surface integrity. Cryogenic machining, where liquid nitrogen was used during machining, has been reported to improve the surface integrity of machined components, including compressive residual stresses. This paper analyses the influence of several cutting parameters, tool geometry and cryogenic conditions on the surface and subsurface residual stresses distribution.

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“…9c shows that with an increase in the depth of cut, weight loss increases since at higher depth of cut lower surface finish is produced. After 192 hours it is noted that with an increase in depth of cut the weight loss reduces, due to larger cutting forces which resulted in to more compressive residual stresses in the subsurface of material [8,16]. …”

Section: A Analysis Of Degradation Ratementioning

confidence: 99%

Influence of Manufacturing Parameters on Performance of Biodegradable Mg-Ca1.0 Implant

Desai

Pawade

Warhatkar

2017

Proceedings of the International Conference on Communication and Signal Processing 2016 (ICCASP 2016)

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Abstract:The paper reports the effects of machining parameters on performance of biodegradable magnesium calcium alloy implant in terms of surface roughness, microstructure, microhardness, chip morphology and degradation rate in face milling using CVD diamond like carbon coated carbide inserts. The result shows that the corrosion resistance of forged sample is higher than that of cast sample. It is also found that the surface roughness is the most significant factors affecting degradation rate. Degradation is mainly occured due to pitting corrosion phenomena. A fine grain microstructure is observed in forged sample and Mg 2 Ca phase is uniformly distributed in microstructure which improves the corrosion resistance. During machining microhardness is changed from 66Hv to 84Hv due to effect of machining parameters. As far as the chip morphology is concerned the depth of cut has significant influence on helical distance of chip.

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Process Mechanics and Surface Integrity Induced by Dry and Cryogenic Machining of AZ31B-O Magnesium Alloy

Cited by 41 publications

References 11 publications

Machinability of Magnesium and Its Alloys: A Review

Machinability of Magnesium and Its Alloys: A Review

Residual Stresses Induced by Dry and Cryogenic Cooling during Machining of AZ31B Magnesium Alloy

Influence of Manufacturing Parameters on Performance of Biodegradable Mg-Ca1.0 Implant

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