Effect of Process Parameters on Temperature Field during Laser Sintering of 316L Stainless Steel Powder

2013 ◽  
Vol 668 ◽  
pp. 844-849 ◽  
Author(s):  
Nai Fei Ren ◽  
Dian Wang ◽  
Lei Jia ◽  
Xiao Bing Ge
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stainless Steel ◽  
Temperature Field ◽  
316L Stainless Steel ◽  
Steel Powder ◽  
Scanning Speed ◽  
Laser Sintering ◽  
Stainless Steel Powder ◽  
Element Analysis

Finite element analysis software ANSYS is a platform, Using the Parametric Design Language of APDL language to write programs to simulate the temperature field of the laser sintering of 316L stainless steel powder. Building the model of Finite element analysis to analysis the simulation's various difficulties, such as the thermal parameters at different temperatures, the loading of the heat flux and some of the key parameters. Researching the affect of laser power and scanning speed on the temperature field, it’s valuable in researching the temperature field of the metal powder sintering

Effect of Scanning Speed on Forming Defects and Properties of Selective Laser Melted 316L Stainless Steel Powder

2019 ◽  
Vol 56 (10) ◽  
pp. 101403
Author(s):  
马英怡 Ma Yingyi ◽  
刘玉德 Liu Yude ◽  
石文天 Shi Wentian ◽  
王朋 Wang Peng ◽  
祁斌 Qi Bin ◽  
...  
Keyword(s):  
Stainless Steel ◽  
316L Stainless Steel ◽  
Steel Powder ◽  
Scanning Speed ◽  
Stainless Steel Powder ◽  
Forming Defects

Design Process of Low Cost Uncemented Femoral Stem 316L Stainless Steel Using Investment Casting Technique

2016 ◽  
Vol 1133 ◽  
pp. 70-74
Author(s):  
Mohd Yusof Baharuddin ◽  
S. Hussain Salleh ◽  
Alias Mohd Nor ◽  
Muhammad Hisyam Lee ◽  
Ahmad Hafiz Zulkifly ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stainless Steel ◽  
Investment Casting ◽  
316L Stainless Steel ◽  
Femoral Stem ◽  
Von Mises Stress ◽  
Manufacturing Cost ◽  
Element Analysis ◽  
The Finite Element Analysis

Total hip replacement (THR) is a flourishing orthopaedic surgery which generating billion of dollars of revenue. The cost associated with the fabrication of implants has been increasing year by year and this phenomenon has burdened the patient with extra charges. Consequently, this study will focus on designing an accurate implant via implementing the reverse engineering of three dimensional morphological study based on a particular population. By using the finite element analysis, this study will assist to predict the outcome and could become a useful tool for pre-clinical testing of newly designed implant. A prototype is then fabricated using 316L stainless steel by applying investment casting techniques which reduce manufacturing cost without jeopardizing implant quality. The finite element analysis showed the maximum von Mises stress was 66.88 MPa proximally with a safety factor of 2.39 against endosteal fracture, and micromotion was 4.73 μm which promotes osseointegration. This method offers a fabrication process of cementless femoral stems with lower cost, subsequently helping patients, particularly those from non developed countries.

Application of Finite Element Method to the Simulation of Vessel Stents

2014 ◽  
Vol 804 ◽  
pp. 243-247 ◽  
Author(s):  
Dinh van Hai ◽  
Hoang Minh Tam ◽  
Duong van Quang
Keyword(s):  
Finite Element Method ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Stainless Steel ◽  
Blood Flow ◽  
316L Stainless Steel ◽  
Simulation And Modeling ◽  
Element Analysis ◽  
Study Results ◽  
Artery Segment

In this study, the effects of supereslasticity of Nitinol for self-expanding (SX) stents – Stent devices which are implanted into the blood vessels in order to restore blood flow in a diseased artery segment (narrowing of the blood vessel due to plaque build-up) and keep the artery open after angioplasty were considered and analyzed. To emphasize the unique properties of Nitinol as compared to other materials, this study was conducted to differentiate the behaviors of two types of stents which are made of Nititol and 316L stainless steel during implantation. Finite element analysis was used for simulation and modeling. The study results are expected to serve well the design of vessel stents.

Investigation on Multi-Layer Direct Metal Laser Sintering of 316L Stainless Steel Powder Beds

CIRP Annals ◽  
1999 ◽  
Vol 48 (1) ◽  
pp. 151-154 ◽  
Author(s):  
W. O'Neill ◽  
C.J. Sutcliffe ◽  
R. Morgan ◽  
A. Landsborough ◽  
K.K.B. Hon
Keyword(s):  
Stainless Steel ◽  
316L Stainless Steel ◽  
Steel Powder ◽  
Laser Sintering ◽  
Stainless Steel Powder ◽  
Direct Metal Laser Sintering

Simulation of Fatigue Life for 316L Stainless Steel Under Room Temperature Using Finite Element Analysis

2022 ◽  
pp. 347-356
Author(s):  
Khairul Azhar Mohammad ◽  
Anmbarasan Ragendran ◽  
Suriani Mat Jusoh ◽  
Muhammad Nur Farhan Saniman ◽  
Khairul Anuar Abd Wahid ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stainless Steel ◽  
Fatigue Life ◽  
Room Temperature ◽  
316L Stainless Steel ◽  
Element Analysis

Analysis for Cold Die Compaction of Stainless-Steel Powder

1997 ◽  
Vol 119 (4) ◽  
pp. 366-373 ◽  
Author(s):  
Y. S. Kwon ◽  
H. T. Lee ◽  
K. T. Kim
Keyword(s):  
Finite Element ◽  
Stainless Steel ◽  
316L Stainless Steel ◽  
Compaction Pressure ◽  
Steel Powder ◽  
Stainless Steel Powder ◽  
Finite Element Program ◽  
Die Pressing ◽  
Element Program ◽  
Die Compaction

Densification behavior of 316L stainless-steel powder under die pressing was studied. The friction effects between the powder and the die wall under different die pressing modes were also investigated. The elastoplastic constitutive equations, based on the yield functions by Fleck and Gurson and by Shima and Oyane, were implemented into a finite element program to simulate die compaction processes. The friction coefficient between the powder and the die wall was determined from the relationship between the compaction pressure and the ejection pressure. Finite element calculations were compared with experimental data for densification and deformation of 316L stainless-steel powder under single and double action die pressing.

An upper-bound finite element solution for rolling of stainless steel 304L under warm and hot deformation conditions

2016 ◽  
Vol 12 (3) ◽  
pp. 514-533 ◽  
Author(s):  
P. Pourabdollah ◽  
S. Serajzadeh
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stainless Steel ◽  
Temperature Field ◽  
Upper Bound ◽  
Element Analysis ◽  
Aisi 304L ◽  
Content Type ◽  
Bound Solution ◽  
Upper Bound Solution

Purpose The purpose of this paper is to investigate the thermomechanical behavior of stainless steel AISI 304L during rolling at elevated temperatures. Design/methodology/approach Two-dimensional finite element analysis together with the upper-bound solution were used for predicting temperature field and required power in warm and hot rolling operations. The required power and heat of deformation were estimated employing an upper-bound solution based on cylindrical velocity field and at the same time, temperature distributions within the rolling steel and the work rolls were determined by means of a thermal finite element analysis. To consider the effect of flow stress and its dependence on temperature, strain and strain rate, a neural network model was used and combined with the thermal and mechanical models. Finally, the microstructure of rolled steel was studied and the effect of rolling conditions was justified employing the predictions. Findings The results have shown that the predicted temperature variations were in good agreement with the experiments. Moreover, the model was shown to be capable of determining the effects of various rolling parameters such as reduction and rolling speed with low-computational cost as well as reasonable accuracy. Originality/value A combined upper-bound finite element analysis was developed to predict the required power and temperature field during plate rolling while the model can be employed under both hot and warm rolling conditions.

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