Study of Heat Transfer Characteristics and Kerf Quality of Flame Jet Cutting

Chayut Nuntadusit; Prapas Muangjunburee; Nattaphum Suwanmala; Makatar Wae-Hayee

doi:10.4028/www.scientific.net/AMR.931-932.392

Paper Titles

Preparation and Characterization of Calcium Sources from Golden Apple Snail Shell for Naturally Based Biomaterials
p.370

Determination of Material Parameter of Gelatin-Carboxymethylcellouse Scaffold with Dehydrothermal Crosslinking Technique Using Curve Fitting Method
p.375

Compressive Response of Polyurethane Open-Cell Foam with Electrodeposited Copper Coatings
p.381

Thermoelectricity of p-NCO and n-ZAO Thin Films
p.386

Study of Heat Transfer Characteristics and Kerf Quality of Flame Jet Cutting
p.392

Numerical Analysis of Material Temperature Distribution
p.397

Influence of RBD Palm Olein on Hydraulic Pump Performance
p.403

The Carbonation of Calcium-Silicate-Hydrate C-S-H in Cement Mortar Studied Using Thermal Analysis and Gas Pycnometer: Determination of the Quantity of Calcium Carbonate Produced and the Increase in Molar Volume
p.411

Influences of the Ratios of High-Calcium Fly Ash to Low-Calcium Fly Ash on the Strength and Drying Shrinkage of Geopolymer Mortar
p.416

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 931-932Study of Heat Transfer Characteristics and Kerf...

Study of Heat Transfer Characteristics and Kerf Quality of Flame Jet Cutting

Abstract:

The aim of this research is to study heat transfer rate of impinging flame jet and cutting quality of steel plate using flame jet. The cutting torch was used for heating on the impingement surface, and it was used for cutting the steel plate samples. LPG at constant flow rate of 0.14 kg/s was mixed with pure oxygen at varied flow rate corresponding to equivalence ratio, =0.78, 0.93 and 1.16. The nozzle-to-plate distance was examined at h=3, 4, 5, 6, 7 and 8 mm. Heat transfer rate on the impingement surface was measured using water cooled heat flux sensor. In order to investigate cutting quality, steel plate with 6 mm in thickness was cut by this flame jet with cutting speed at 260 mm/min. The surface roughness, slag quantity and kerf characteristics were considered for cutting quality. The results show that the flame jet for condition of =0.78 at h=4 mm gives the highest heat transfer rate. The flame jet for condition of =0.93 at h=6 mm is optimal for using cutting steel plate in this study.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 931-932)

Pages:

392-396

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.931-932.392

Citation:

Cite this paper

Online since:

May 2014

Authors:

Chayut Nuntadusit*, Prapas Muangjunburee, Nattaphum Suwanmala, Makatar Wae-Hayee

Keywords:

Equivalence Ratio, Flame Jet Cutting, Heat Transfer Rate, Kerf Quality, LPG, Oxygen

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] K. McQuade, Plasma, oxyfuel and laser: matching steel cutting needs with the right cutting process, Welding and cutting 9 (2010) 91–94.

Google Scholar

[2] R. Thiébaud, J. -M. Drezet, J. -P. Lebet, Experimental and numerical characterisation of heat flow during flame cutting of thick steel plates, J. of Materials Processing Technol. 214 (2014) 304-310.

DOI: 10.1016/j.jmatprotec.2013.09.016

Google Scholar

[3] A.V. Adedayo, Kinetics of oxyfuel gas cutting of steels, J. of the Braz. Soc. of Mech. Sci. & Eng. 33 (2011) 183–188.

DOI: 10.1590/s1678-58782011000200009

Google Scholar

[4] D. Rosenthal, Mathematical theory of heat distribution during welding andcutting, Welding J. 20 (1941) 220–234.

Google Scholar

[5] W. O'Neill, J. Gabzdyl, New developments in laser-assisted oxygen cutting, Optics and Lasers Eng. 34 (2000) 355–367.

DOI: 10.1016/s0143-8166(00)00070-1

Google Scholar

[6] R. Viskanta, Heat Transfer to Impinging Isothermal Gas and Flame Jets, Exp. Therm. Fluid Sci 6 (1993) 111-134.

DOI: 10.1016/0894-1777(93)90022-b

Google Scholar