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- Publisher
- Emerald Publishing
- Copyright
- © Emerald Publishing Limited
- ISSN
- 1708-5284
- DOI
- 10.1108/wje-11-2018-0400
- Publisher site
- See Article on Publisher Site
Abstract
This paper aims to work exhibits the temperature distribution over the surface of the workpiece during plasma arc cutting process.Design/methodology/approachThe moving heat source is taken into consideration for calculating the heat created by plasma arc. The heat is generated at the plasma – liquid metal boundary. The heat of fusion is also considered for estimation because of molten layer separates the plasma and solid layer. This causes to hamper the heat transfer towards the melting front. Eliminating the heat resistance may calculation error at high cutting speed. Power required to melt the material depends on the speed of the cut.FindingsHigher cutting speed increases the power required. The temperature drop over the layer of molten front increases as the speed of cut increases at higher Peclet number. Different thickness of the molten layer was taken for calculation i.e. zero thickness, 10 and 20 per cent.Originality/valueThe estimated results are shown in non-dimensional form. So, the method can be applied for any other types of material.
Journal
World Journal of Engineering – Emerald Publishing
Published: Aug 20, 2019
Keywords: Temperature distribution; Molten layer; Moving heat source; Peclet number; Plasma arc cutting