Measurement and assessment of surface roughness for optimisation of laser cutting technology
by Marta Harničárová; Jan Valíček; Radovan Grznárik; Tadeusz Hryniewicz; Milena Kušnerová; Krzysztof Rokosz; Hakan Tozan
International Journal of Surface Science and Engineering (IJSURFSE), Vol. 9, No. 2/3, 2015

Abstract: This paper presents an original approach for the optimisation of laser cutting process based on surface topography measurement. The surface roughness carries important information for monitoring of the immediate state of the technological process, material properties and interaction between a laser beam and machined material. A mathematical model was developed, where the surface roughness was taken into account as the most important quantitative criterion for process optimisation. In this investigation, low carbon steel and stainless steel were cut by using a 5 kW carbon dioxide laser. A Talysurf CCI 2000 and Surftest SJ401 measuring instruments were used for the measurement of the surface roughness. In the study, the average surface roughness Ra was considered. The predicted values for optimisation process conditions were in good agreement with experimental data. By applying the surface roughness model, the optimal cutting parameter setting, minimising surface roughness, was determined.

Online publication date: Thu, 26-Mar-2015

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Surface Science and Engineering (IJSURFSE):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com