An analysis of the residual stresses generated in Inconel 718™ when turning

Sharman, A.R.C.; Hughes, James; Ridgway, Keith

doi:10.1016/j.jmatprotec.2005.12.007

Cited by 247 publications

(148 citation statements)

References 23 publications

Supporting

Mentioning

128

Contrasting

Unclassified

Order By: Relevance

“…To ensure same cutting conditions and guarantee the absence of changes in the surface properties of the material due to the tool wear [15,22], a new insert's edge was used for each test.…”

Section: Methodsmentioning

confidence: 99%

Effect of surface hardness and roughness produced by turning on the torsion mechanical properties of annealed AISI 1020 steel

Zurita-Hurtado

Graci-Tiralongo

Capace-Aguirre

2017

Rev. Fac. Ing. Univ. Antioquia

View full text Add to dashboard Cite

This paper presents the results of experimental work carried out to study the influence of surface integrity, measured as hardness (HV) and roughness (Ra) on torsional properties of annealed AISI 1020 steel machined by turning using carbide insert tools. The results showed a reduction in ductility when hardness and roughness increase, caused by the plastic deformation induced after machining. It was shown that the shear yield strength increases, as a consequence of the material strengthening by work-hardening and the rise of stress concentrators. Further, the ultimate shear strength increases with surface hardness, having the opposite effect when the surface roughness caused greater stress concentration. RESUMEN:Este artículo presenta los resultados del trabajo experimental llevado a cabo para estudiar la influencia de la integridad superficial, medida como dureza (HV) y la rugosidad (Ra) en las propiedades a torsión del acero AISI 1020 recocido torneado con herramientas de corte con inserto de carburo. Los resultados mostraron una reducción de la ductilidad con el aumento de la dureza y rugosidad, causado por la deformación plástica inducida después del mecanizado. Se demostró que el límite elástico de cizalladura aumenta como consecuencia del endurecimiento del material y el incremento de concentradores de esfuerzos. Además, la resistencia máxima a la cizalladura aumenta con la dureza de la superficie, pero tiene el efecto contrario cuando la rugosidad de la superficie provoca una mayor concentración de esfuerzos. relevant parameter used for evaluating a machined surface. Many mechanical components require special attention on the surface roughness because it affects the appearance, reliability, and function of the product. Meanwhile, these components also need to have a high surface hardness to resist wear and plastic deformation during services. Therefore, an improved control of surface integrity is considered to be of importance.Several factors affect machined surface roughness, such as tool geometry, tool wear, coolant and cutting parameters. The influence of tool geometry by means of the nose radius has been previously investigated, proving that high radius values cause rough surfaces [2,3]. According to a previous experimental research cutting with a worn tool also resulted in worse roughness [4]. Works conducted to analyze the effect of coolant showed that higher surface roughness was achieved on components machined without coolant, as compared to those with a supply of coolant [5,6]. Finally, there is an abundance of literature describing the relation of cutting parameters on surface roughness. Results from these studies indicated that a higher feed rate and depth of cut increase the surface finish values while cutting speed had the opposite effect on aluminum [6,7], brass alloys [8], carbon alloy steels [9][10][11][12], EN-31 steel [13] and stainless steels [14].

show abstract

“…To ensure same cutting conditions and guarantee the absence of changes in the surface properties of the material due to the tool wear [15,22], a new insert's edge was used for each test.…”

Section: Methodsmentioning

confidence: 99%

Effect of surface hardness and roughness produced by turning on the torsion mechanical properties of annealed AISI 1020 steel

Zurita-Hurtado

Graci-Tiralongo

Capace-Aguirre

2017

Rev. Fac. Ing. Univ. Antioquia

View full text Add to dashboard Cite

show abstract

“…A new insert's edge was used for each experiment, to guarantee equal cutting conditions and ensure the absence of changes in the surface properties of the material due to tool wear [8,9].…”

Section: Methodsmentioning

confidence: 99%

Surface Integrity in Machining

Davim¹

2010

232

View full text Add to dashboard Cite

“…Nickel-iron based superalloy Inconel 718 possesses advantageous service mechanical and thermal properties: high strength at elevated temperatures, high oxidation and corrosion resistance and low thermal conductivity [1]. These beneficial properties make it a primary choice material for 1 power generation, aerospace, nuclear and other critical industries however these same properties introduce difficulties during its machining.…”

Section: Introductionmentioning

confidence: 99%