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ISSN Print: 2381-1072 ISSN Online: 2381-1080

Engineering and Technology

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Field and Image Based Assessment of the Tool's Lifespan Impact on Roughness Parameters in a Context of Advanced Machine Depreciation

Engineering and Technology
Vol.3 , No. 1, Publication Date: Feb. 15, 2016, Page: 12-18

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Authors

[1]	Kanaa Thomas Florent Noël, Department of Mechanical Engineering, Higher Technical Teacher Training College (HTTTC), University of Bamenda, Bambili, Cameroon; Laboratory of Electronics, Electrotechnics, Automation and Telecommunications (LEEAT), University of Douala, Douala, Cameroon.
[2]	Tchiotsop Daniel, Laboratory of Automation and Applied Computer Science (LAIA), Fotso Victor University Institute of Technology (IUT-FV), University of Dschang, Bandjoun, Cameroon.
[3]	Fogue Médard, Laboratory of Environmental and Industrial Systems Engineering (LISIE), Fotso Victor University Institute of Technology (IUT-FV), University of Dschang, Bandjoun, Cameroon.
[4]	Ngongang Ludovic, Department of Mechanical Engineering, Higher Technical Teacher Training College (HTTTC), University of Bamenda, Bambili, Cameroon.
[5]	Tsague Pierre Youri, Department of Mechanical Engineering, Higher Technical Teacher Training College (HTTTC), University of Bamenda, Bambili, Cameroon.
[6]	Njeugna Ebénézer, Laboratory of Mechanics and Adapted Materials (LAMMA), Advanced Teacher Training College for Technical Education (ENSET), University of Douala, Douala, Cameroon.

Abstract

This paper aims at assessing experimentally, on the field and by image, the main roughness parameters on work pieces made-up of Aluminum, Bronze and steel through milling, rectification and bedding operations in order to establish the contribution of the tool’s lifespan as well as the overriding factors in the final appreciation of the surface profile. The 2D sampling and the non-contact methods of roughness parameters assessment have been deployed, respectively on the surface of pieces and on its corresponding image texture. With 81.5% as follow-up rate of the maximum profile height (R_a) values with those of the standard (ISO norms), we appreciated the roughness behavior in relation with the material and the tool’s lifespan on the milling process. The study revealed that depending on the using stage of the tool, there is a net improvement or degradation of the roughness. And so, the surface profile and the final roughness take into account the machining process, the tool and machine-tool added to the measurement device, measuring techniques and the nature of the surface.

Keywords

Roughness, Tool’s Lifespan, Milling, Machining, Optical Microscopy

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