Experimental Investigation and 3D Finite Element Prediction of Temperature Distribution during Travelling Heat Sourced from Oxyacetylene Flame

9th Curtin University of Technology Science and Engineering International Conference 2014

自然科学;工业技术

Alkali, Adam Umar^1 ; Ginta, Turnad Lenggo^2 ; Abdul-Rani, Ahmad Majdi^2

Department of Mechanical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Tronoh, Malaysia^1

Rehabilitation Rehabilitation and Biomedical - Mechanic Research, Bio - Medical Technology MOR, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Tronoh, Malaysia^2

关键词: 3-D finite elements;    316 L stainless steel;    Experimental investigations;    Experimental validations;    Finite element modelling;    Surface temperature distribution;    Type 316L stainless steel;    Workpiece temperature;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/78/1/012025/pdf
DOI  :  10.1088/1757-899X/78/1/012025

来源: IOP

【 摘 要 】

This paper presents a 3D transient finite element modelling of the workpiece temperature field produced during the travelling heat sourced from oxyacetylene flame. The proposed model was given in terms of preheat-only test applicable during thermally enhanced machining using the oxyacetylene flame as a heat source. The FEA model as well as the experimental test investigated the surface temperature distribution on 316L stainless steel at scanning speed of 100mm/min, 125mm/min 160mm/min, 200mm/min and 250mm/min. The parametric properties of the heat source maintained constant are; lead distance Ld=10mm, focus height Fh=7.5mm, oxygen gas pressure Poxy=15psi and acetylene gas pressure Pacty=25psi. An experimental validation of the temperature field induced on type 316L stainless steel reveal that temperature distribution increases when the travelling speed decreases.