3 d Heat Transfer Analysis and Numerical Modeling of LENSTM Process for One End Stepped Cylindrical Wall by Using Stainless Steel 304
نویسندگان
چکیده
Laser Engineered Net Shaping (LENSTM) is a rapid-manufacturing process that involves complex thermal, mechanical, and metallurgical interactions. Due to process input parameter such as laser power , laser scanning velocity and feed rate, the effect on solidification of component to be produced must be understand. The finite element method (FEM) may be used to accurately model this process and solidification behavior by varying parameters. In this study the commercial FEM code ANSYS is used to predict the thermal histories, residual stresses, total deformation generated in One end stepped cylindrical wall and substrate of stainless steel 304. The computational results are compared with experimental measurements for validation.
منابع مشابه
“ 3 d Heat Transfer Analysis And Numerical Modeling Of Lens tm Process For Thin Wall By Using Stainless Steel 304 ”
Laser Engineered Net Shaping (LENSTM) is a rapid-manufacturing procedure that involves complex thermal, mechanical, and metallurgical interactions. The finite element method (FEM) may be used to accurately model this process, allowing for optimized selection of input parameters, and, hence, the fabrication of components with improved Thermo-mechanical properties. In this study the commercial FE...
متن کاملNumerical Determination of the Forming Limit Diagram for 304 Stainless Steel Based on Phase Change in Deep Drawing Process
Up to now a large number of models have been developed to measure or predict the damage in equipments. Some of these models have been implemented in ABAQUS software. To implement damage parameters in the software, it is necessary to perform complex and expensive practical tests. One of these damage models is Forming Limit Diagram (FLD).The purpose of this research is deriving required parameter...
متن کاملNumerical study on convective heat transfer for water-based alumina nanofluids
The present work is an experimental study of steady state convective heat transfer of de-ionized water with a (0.04% by volume) volume fraction of Al2O3 nanoparticles dispersed to form a nanofluid that flows through an aluminium tube.Laminar fully developed flow heat transfer coefficient of Al2O3 nanoparticles are dispersed in water in circular tube is discussed in this paper. In order to valid...
متن کاملNumerical study on convective heat transfer for water-based alumina nanofluids
The present work is an experimental study of steady state convective heat transfer of de-ionized water with a (0.04% by volume) volume fraction of Al2O3 nanoparticles dispersed to form a nanofluid that flows through an aluminium tube.Laminar fully developed flow heat transfer coefficient of Al2O3 nanoparticles are dispersed in water in circular tube is discussed in this paper. In order to valid...
متن کاملMathematical Modeling of Heat Transfer for Steel Continuous Casting Process
Heat transfer mechanisms and the solidification process are simulated for a continuous casting machine and the geometric shape of the liquid pool is predicted considering different conditions. A heat transfer and solidification model is described for the continuous casting of steel slabs. The model has been established on the basis of the technical conditions of the slab caster in the con...
متن کامل