A review of surface integrity in machining and its impact on functional performance and life of machined products

M’Saoubi, Rachid; Outeiro, José; Chandrasekaran, H.; Dillon, O. W.; Jawahir, I.S.

doi:10.1504/ijsm.2008.019234

Cited by 219 publications

(91 citation statements)

References 112 publications

(154 reference statements)

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“…It was reported that austenitic stainless steels belong to difficult to machine materials category because of their low thermal conductivity and high mechanical and micro structural sensitivity to strain and stress rate (M'Saoubi et al, 2008). Many of research works contributed their efforts to overcome poor machinability of austenitic stainless steels.…”

Section: Literature Reviewmentioning

confidence: 99%

Parametric optimization during machining of AISI 304 Austenitic Stainless Steel using CVD coated DURATOMIC cutting insert

Kaladhar¹,

Subbaiah²,

Rao³

2012

ijiec

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In this work, Taguchi method is applied to determine the optimum process parameters for turning of AISI 304 austenitic stainless steel on CNC lathe. A Chemical vapour deposition (CVD) coated cemented carbide cutting insert is used which is produced by Duratomic TM technology of 0.4 and 0.8 mm nose radii. The tests are conducted at four levels of Cutting speed, feed and depth of cut. The influence of these parameters are investigated on the surface roughness and material removal rate (MRR). The Analysis Of Variance (ANOVA) is also used to analyze the influence of cutting parameters during machining. The results revealed that cutting speed significantly (46.05%) affected the machined surface roughness values followed by nose radius (23.7%). The influence of the depth of cut (61.31%) in affecting material removal rate (MRR) is significantly large. The cutting speed (20.40%) is the next significant factor. Optimal range and optimal level of parameters are also predicted for responses.

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Section: Literature Reviewmentioning

confidence: 99%

Parametric optimization during machining of AISI 304 Austenitic Stainless Steel using CVD coated DURATOMIC cutting insert

Kaladhar¹,

Subbaiah²,

Rao³

2012

ijiec

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“…has been made. [3] In the previous years, many studies have been carried out to explore different facets of the hard turning of alloy steel. Ramesh et al [4]examined the differences in structure and properties of white layers formed during machining of hardened AISI 52100 steel (62 HRC) at different cutting speeds.…”

Section: Introductionmentioning

confidence: 99%

Study of the performances of nano-case treatment cutting tools on carbon steel work material during turning operation

Afolalu¹,

Okokpujie²,

Salawu³

et al. 2018

AIP Conference Proceedings

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Abstract:The degree of holding temperature and time play a major role in nano-case treatment of cutting tools which immensely contributed to its performance during machining operation. The objective of this research work is to carryout comparative study of performance of nano-case treatment tools developed using low and medium carbon steel as work piece. Turning operation was carried out under two different categories with specific work piece on universal lathe machine using HSS cutting tools 100 mm x 12mm x 12mm that has been nano-case treated under varying conditions of temperatures and timeof 800,850, 900, 950 o C and 60, 90, 120 mins respectively. The turning parameters used in evaluating this experiment were cutting speed of 270, 380 and 560mm/min, feed rate of 0.15, 0.20 and 0.25 mm/min, depth of cut of 2mm, work piece diameter of 25mm and rake angle of 7 o each at three levels. The results of comparative study of their performances revealed that the timespent in the machining of low carbon steel material at a minimum temperature and time of800°C, 60 mins were1.50, 2.17 mins while at maximum temperature and time of 950°C , 120 mins were 1.19, 2.02 mins. It was also observed that at a corresponding constant speed of 270,380 and 560mm/min at higher temperature and time, a relative increased in the length of cut were observed.Critical observation of the result showed that at higher case hardening temperature and time (950°C/120mins), the HSS cutting tool gave a better performance as lesser time was consumed during the turning operation.

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“…Ultra-precision manufacturing (UPM) technology is one of the most important methods to produce high-quality titanium alloy components with surface precision and roughness in nanometer range [2] F o r P e e r R e v i e w microstructure changes induced by machining were focus on the machined chips, there are few publications regarding the finished surface, which is more important than chips in most cases. To reveal the influence of continuous impact caused by cutting force to machined surface, a cutting experiment was conducted to discover the phase decomposition of alloy workpiece surface by using back-scattered electron microscopy [8][9] .…”

Section: Introductionmentioning

confidence: 99%

Evolution of surface grain structure and mechanical properties in orthogonal cutting of titanium alloy

Bai

Tong

et al. 2016

J. Mater. Res.

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Abstract:In this study, a mesoscale dislocation simulation method was developed to study the orthogonal cutting of Titanium alloy. The evolution of the surface grain structure and its effects on the mechanical properties was studied using two-dimensional climb assisted dislocation dynamic technology. The motions of edge dislocations in an elastic matrix such as dislocation nucleation, lock, interaction with obstacles and grain boundaries, and annihilation were tracked. The results showed that the machined surface has a graded microstructure composed of ultrafine grains. A grain refinement process was observed in micro-cutting of titanium alloy. The process can be described as follows: (i) the development of dislocation lines in original grains, (ii) the formation of dense dislocation bands, (iii) the transformation of dislocation bands into subgrain boundaries, and (iv) the continuous dynamic recrystallization in subgrain boundaries. The fine-grains formed in this process bring appreciable scale effect and a mass of dislocations pile up in the grain boundary and persistent slip band (PSB). In particular, the flow stress and hardening rate was reduced by dislocation climb. However, this effect is significantly weakened when grain size was less than 1.65 µm. In addition, a Hall-Petch type relation is predicted depending on the amount of slips, the dislocation density, the grain arrangement and the range of grain sizes to which a Hall-Petch expression is fit. The numerical results obtained were compared with experimental data gathered from literature and a satisfied agreement was found.

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A review of surface integrity in machining and its impact on functional performance and life of machined products

Cited by 219 publications

References 112 publications

Parametric optimization during machining of AISI 304 Austenitic Stainless Steel using CVD coated DURATOMIC cutting insert

Parametric optimization during machining of AISI 304 Austenitic Stainless Steel using CVD coated DURATOMIC cutting insert

Study of the performances of nano-case treatment cutting tools on carbon steel work material during turning operation

Evolution of surface grain structure and mechanical properties in orthogonal cutting of titanium alloy

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