scholarly journals Surface Integrity Analysis when Machining Inconel 718 with Conventional and Cryogenic Cooling

Procedia CIRP ◽  
2016 ◽  
Vol 45 ◽  
pp. 67-70 ◽  
Author(s):  
A. Iturbe ◽  
E. Hormaetxe ◽  
A. Garay ◽  
P.J. Arrazola
Keyword(s):  
Surface Integrity ◽  
Inconel 718 ◽  
Cryogenic Cooling ◽  
Integrity Analysis

Surface integrity analysis of machined Inconel 718 over multiple length scales

CIRP Annals ◽  
2012 ◽  
Vol 61 (1) ◽  
pp. 99-102 ◽  
Author(s):  
Rachid M'Saoubi ◽  
Tommy Larsson ◽  
José Outeiro ◽  
Yang Guo ◽  
Sergey Suslov ◽  
...  
Keyword(s):  
Surface Integrity ◽  
Inconel 718 ◽  
Length Scales ◽  
Multiple Length Scales ◽  
Integrity Analysis

Surface Integrity Studies in Ball End Milling of Thin Shaped Cantilever Inconel 718

2014 ◽  
Author(s):  
Nandkumar N. Bhopale ◽  
Raju S. Pawade
Keyword(s):  
Surface Integrity ◽  
Inconel 718 ◽  
Tool Path ◽  
Surface Defects ◽  
End Milling ◽  
Surface Region ◽  
Lower Surface ◽  
Machined Surface ◽  
Ball End Milling ◽  
Integrity Analysis

The paper presents the surface integrity analysis in ball end milling of thin shaped cantilever plate of Inconel 718. It is noticed that the workpiece deflection has significantly contributed to machined surface integrity in terms of surface topography and subsurface microhardness. The ball end milling performed with 15° workpiece inclination with horizontal tool path produced higher surface integrity which varies with the location of machined surface region. In general, the mid portion of the machined plate shows lower surface roughness and microhardness with less surface defects.

scholarly journals Surface Integrity Analysis of Inconel 718 after Turning with Different Solid Lubricants Dispersed in Neat Oil Delivered by MQL

2016 ◽  
Vol 5 ◽  
pp. 609-620 ◽  
Author(s):  
Armando Marques ◽  
Cleudes Guimarães ◽  
Rosemar Batista da Silva ◽  
Maria da Penha Cindra Fonseca ◽  
Wisley Falco Sales ◽  
...  
Keyword(s):  
Surface Integrity ◽  
Inconel 718 ◽  
Solid Lubricants ◽  
Integrity Analysis

Effect of tool wear on the surface integrity of Inconel 718 in face milling with cemented carbide tools

Wear ◽  
2021 ◽  
pp. 203752
Author(s):  
A.R.F. Oliveira ◽  
L.R.R. da Silva ◽  
V. Baldin ◽  
M.P.C. Fonseca ◽  
R.B. Silva ◽  
...  
Keyword(s):  
Tool Wear ◽  
Surface Integrity ◽  
Inconel 718 ◽  
Face Milling ◽  
Cemented Carbide ◽  
Cemented Carbide Tools

Parameter Optimization of Ball End Milling Process on Inconel 718 Using RSM and TLBO Algorithm

2015 ◽  
Vol 15 (3) ◽  
pp. 293-300 ◽  
Author(s):  
Nandkumar N. Bhopale ◽  
Nilesh Nikam ◽  
Raju S. Pawade
Keyword(s):  
Surface Roughness ◽  
Response Surface Methodology ◽  
Response Surface ◽  
Surface Integrity ◽  
Inconel 718 ◽  
Tool Path ◽  
End Milling ◽  
Spindle Speed ◽  
Depth Of Cut ◽  
Ball End Milling

AbstractThis paper presents the application of Response Surface Methodology (RSM) coupled with Teaching Learning Based Optimization Technique (TLBO) for optimizing surface integrity of thin cantilever type Inconel 718 workpiece in ball end milling. The machining and tool related parameters like spindle speed, milling feed, axial depth of cut and tool path orientation are optimized with considerations of multiple response like deflection, surface roughness, and micro hardness of plate. Mathematical relationship between process parameters and deflection, surface roughness and microhardness are found out by using response surface methodology. It is observed that after optimizing the process that at the spindle speed of 2,000 rpm, feed 0.05 mm/tooth/rev, plate thickness of 5.5 mm and 15° workpiece inclination with horizontal tool path gives favorable surface integrity.

scholarly journals Turning of Additively Manufactured Ti6Al4V: Effect of the Highly Oriented Microstructure on the Surface Integrity

Materials ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 2842
Author(s):  
Lucia Lizzul ◽  
Rachele Bertolini ◽  
Andrea Ghiotti ◽  
Stefania Bruschi
Keyword(s):  
Surface Integrity ◽  
Cryogenic Cooling ◽  
Powder Layer ◽  
Layer By Layer ◽  
Turning Operations ◽  
Powder Bed ◽  
Remarkable Effect ◽  
Scanning Strategies ◽  
Machining Operations ◽  
Microstructural Anisotropy

Additive manufacturing processes induce a high orientation in the microstructure of the printed part due to the strong thermal gradients developed during the process caused by the highly concentrated heat source that is used to melt the metal powder layer-by-layer. The resulting microstructural anisotropy may have an effect on the post-processing operations such as machining ones. This paper investigates the influence of the anisotropy in turning operations carried out on laser powder bed fused Ti6Al4V parts manufactured with different scanning strategies. The machinability under both transverse and cylindrical turning operations was assessed in terms of surface integrity, considering both surface and sub-surface aspects. The effect of the different cooling conditions, that is flood and cryogenic ones, was studied as well. The outcomes showed that the microstructural anisotropy had a remarkable effect on the machining operations and that the cryogenic cooling enhanced the effect of the anisotropy in determining the surface integrity.

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