Finite element analysis of laser inert gas cutting on Inconel 718

2011 ◽  
Vol 60 (9-12) ◽  
pp. 995-1007 ◽  
Author(s):  
K. Y. Nyon ◽  
C. Y. Nyeoh ◽  
Mohzani Mokhtar ◽  
Razi Abdul-Rahman
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Inconel 718 ◽  
Inert Gas ◽  
Element Analysis

Deformation Behavior of Grains Near Defects in Direct Metal Laser Sintered Inconel 718 During Indentation

2020 ◽  
Author(s):  
Mustafa Rifat ◽  
Saurabh Basu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Plane Strain ◽  
Microstructure Evolution ◽  
Mechanical Behaviour ◽  
Inconel 718 ◽  
Orientation Imaging Microscopy ◽  
Ex Situ ◽  
Element Analysis ◽  
Porosity Defects

Abstract The present work utilizes Orientation Imaging Microscopy and Finite Element Modelling to analyse microstructure evolution in grains near defects during plane strain indentation of direct metal laser sintered Inconel 718. Defects are inevitably produced during printing of metals and they degrade the mechanical behaviour of parent components. Understanding microstructure evolution of grains present near defects can help create better predictive models of mechanical behaviour of components resulting from additive manufacturing. In this work, an ex-situ study of microstructure evolution during plane strain indentation of DMLS Inconel 718 specimens is performed. Regions that lie near volumetric porosity defects were studied. Grain Orientation Spread was utilized as a metric to quantify intra-granular deformation. It was seen that microstructure evolution of grains near defects is enhanced due to strain concentrations whereby they exhibit larger orientation spread after plastic deformation. Finite Element Analysis was used to simulate the plane strain indentation test on the specimen in which, porosity defects and roughness textures similar to those seen in the as-received specimen were programmed using the python scripting interface of Abaqus. Results from finite element analysis were compared with insights from microstructure analysis to describe evolution of microstructure during deformation near defects.

Design of Pneumatic Parachute-Packing Machine

2014 ◽  
Vol 989-994 ◽  
pp. 3286-3289
Author(s):  
Ying Fei Wang ◽  
San Peng Deng ◽  
Bo Chen ◽  
Lin Ling Zhang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
High Pressure ◽  
Structure Optimization ◽  
Inert Gas ◽  
Element Analysis ◽  
Pneumatic Control ◽  
Ground Support ◽  
The Finite Element Analysis ◽  
Gas Drag

As ground support equipment, drag parachute packing machine is used for packaging aircraft drag parachute. It is driven by high-pressure inert gas. Drag parachute will be compacted in the cylinder loading institution by high pressure. The overall structure of drag parachute packing machine is designed. The finite element analysis and structure optimization of drag parachute packing manipulator is completed. The pneumatic control system is designed. It provides an approach for drag parachute packing technology.

scholarly journals 2d finite element analysis of inconel 718 under turning processes

2020 ◽  
Vol 912 ◽  
pp. 032021
Author(s):  
G Chandra Mouli ◽  
K Prakash Marimuthu ◽  
T Jagadeesha
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Inconel 718 ◽  
Element Analysis
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