Residual stress and surface roughness when facing age hardened Inconel 718 with CBN and ceramic cutting tools

Arunachalam, R. M.; Mannan, MA; Spowage, A.C.

doi:10.1016/j.ijmachtools.2004.02.016

Cited by 233 publications

(114 citation statements)

References 13 publications

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“…Attempts have been made in the past with due focus on surface integrity induced by turning operation of Inconel 718 considering the machining environment. The reported findings state reduction in surface roughness under different machining environments like wet [5,6], MQL [7,8], hybrid machining [9], cooling air and minimum quantity lubrication (CAMQL) [10] and liquid nitrogen (LN2) [11]. Further the beneficial effects of machining environment in inducing lesser tensile or more compressive residual stresses have been also reported for wet [5,6] and cryogenic [12] environments, to mention a few.…”

Section: Introductionmentioning

confidence: 92%

“…The reported findings state reduction in surface roughness under different machining environments like wet [5,6], MQL [7,8], hybrid machining [9], cooling air and minimum quantity lubrication (CAMQL) [10] and liquid nitrogen (LN2) [11]. Further the beneficial effects of machining environment in inducing lesser tensile or more compressive residual stresses have been also reported for wet [5,6] and cryogenic [12] environments, to mention a few. Podgorkov and Godlevski around 1990s proposed a new pollution-free cutting technique with water vapour as coolant and lubricant in machining, and further works on it reported decrease in surface roughness of various work materials like C45 steel [13], ANSI 304 stainless steel [14] and Titanium alloy (Ti6Al-4V) [15].…”

Section: Introductionmentioning

confidence: 92%

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Influence of Machining Environment on Surface Integrity in HSM of Inconel 718 with Productivity Perspective

Kadam

Pawade

2017

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

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Abstract:This paper investigates the effect of material removal rate (MRR) and mainly machining environment on resultant surface integrity in high-speed machining (HSM) of Inconel 718. For this high-speed turning is carried out for three different cutting speeds, feedrates and depth of cut under dry, flood coolant and water vapour machining environments. The results show that flood cooling is ineffective in high-speed machining. Water vapours acts as a coolant and lubricant, and hence is highly effective in lowering surface roughness and surface damages in machining. However at very high material removal rates, dry machining seems to be an economical option. Under all the environments the residual stresses were found to be compressive in nature at all MRR levels. Keeping in view green manufacturing, good productivity and better quality, it is suggested that machining of Inconel 718 under water vapour environment is an ideal approach.

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Section: Introductionmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 92%

Influence of Machining Environment on Surface Integrity in HSM of Inconel 718 with Productivity Perspective

Kadam

Pawade

2017

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

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“…Jak wykazano w [2] efekty termiczne wpływają na występowanie naprężeń rozciągających, podczas gdy wpływy efektów mechanicznych przyczyniają się do naprężeń ściskających. W [1] zwrócono uwagę, że należy również zwrócić uwagę na zużycie ostrza, które niekorzystnie wpływa na głę-bokość warstwy naprężeń. W [7] wykonano analizę rozkładu siły skrawania podczas frezowania czołowego płytkami okrągłymi.…”

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An experimental study of cutting force dependence on tool condition and cutting parameters in rough milling of Inconel 718 with ceramic inserts

2015

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StreszczenieW przemyśle lotniczym często stosowane są trudnoobrabialne materiały, jak stal nierdzewna, tytan, czy Inconel. Ich obróbka jest zagadnieniem stosunkowo nowym, dlatego brakuje doświadczeń dotyczą-cych najbardziej wydajnych, ekonomicznych warunków skrawania takich materiałów. Wiele publikacji wskazuje, że wydajną i stosunkowo ekonomiczną obróbkę Inconelu 718 można zapewnić dzięki zastosowaniu okrągłych płytek ceramicznych. Jednak obróbka za pomocą takich płytek niesie za sobą ryzyko powstawania dużych naprężeń w warstwie wierzchniej, co wynika z dużej siły odporowej. Jak wiadomo, ze względu na wysoką odpowiedzialność części lotniczych występowanie niekorzystnych naprężeń jest niedopuszczalne. W ramach badań opisanych w niniejszym artykule przeprowadzono analizę rozkładu siły skrawania podczas zgrubnego frezowania Inconelu 718 okrągłymi płytkami ceramicznymi. Badaniom poddano płytki ostre i stępione, stosując dwa zestawy parametrów skrawania, wytypowane we wcześniejszych badaniach jako optymalne z punktu widzenia trwałości ostrza i wydajności obróbki. W wyniku tych badań wykazano, że optymalny zestaw parametrów do zgrubnego frezowania Inconelu 718 (z uwzględnieniem zarówno wydajności, jak i rozkładu sił skrawania) to: vc = 1000 m/min, f = 0,1 mm, ap = 2 mm. Słowa kluczowe: siła skrawania, frezowanie zgrubne, płytki ceramiczne, Inconel 718 AN EXPERIMENTAL STUDY OF CUTTING FORCE DEPENDENCE ON TOOL CONDITION AND CUTTING PARAMETERS IN ROUGH MILLING OF INCONEL 718 WITH CERAMIC INSERTS AbstractThe aviation industry often employs difficult-to-machine materials, such as stainless steel, titanium, or Inconel. Machining thereof is a relatively new issue, due to which there is not enough experience concerning the most efficient, economic conditions of cutting of such materials. Many publications point out that efficient and relatively economic machining of Inconel 718 may be ensured through use of round ceramic inserts. However, machining with such inserts entails a risk of occurrence of large stresses in the surface layer, resulting from a large passive force. It is known that, due to high reliability of aviation parts, occurrence of adverse stresses is unacceptable. As a part of the study described in this paper, an analysis of distribution of the cutting force during rough milling of Inconel 718 with round ceramic inserts was conducted. Sharp and dulled inserts were tested using two sets of cutting parameters, selected in prior research as optimal from the perspective of blade endurance and machining efficiency. As a result of this research, it has been shown that the optimal set of parameters for rough milling of Inconel 718 (taking account of both efficiency and distribution of cutting forces) is: vc = 1000 m/min, f = 0,1 mm, ap = 2 mm.

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“…Many researchers focus their studies to improve the machining capabilities of Inconel 718. Arunachalam et al [31] suggested that coated carbide cutting tool in round shape with chamfered cutting edge, negative rake and small nose radius has been better combination for turning of the Inconel 718. Satyanarayana et at.…”

Section: Research In Turning Of Inconel 718mentioning

confidence: 99%

An Overview on Turning Process

2015

International Conference on Advancements and Recent Innovations in Mechanical, Production and Industrial Engineering

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Abstract-Turning is one of the most popular convectional machining processes to remove the extra material from the rotating surfaces. In this process, a wedge shaped cutting tool penetrated toward the workpiece and removed the extra material in the form of chips. Almost all known materials can be machined by this process in different forms like external turning, internal turning, plain/cylindrical turning, step turning, taper turning, face turning etc. with selection of appropriate cutting tool for particular material. The aim of the present study is to summarize a report on the turning process including present and past research works. This paper present a brief overview on turning operation considering the different aspects and focus the future scopes of works in the same area, which is beneficial for the researches who work in the same field.

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Residual stress and surface roughness when facing age hardened Inconel 718 with CBN and ceramic cutting tools

Cited by 233 publications

References 13 publications

Influence of Machining Environment on Surface Integrity in HSM of Inconel 718 with Productivity Perspective

Influence of Machining Environment on Surface Integrity in HSM of Inconel 718 with Productivity Perspective

An experimental study of cutting force dependence on tool condition and cutting parameters in rough milling of Inconel 718 with ceramic inserts

An Overview on Turning Process

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