Moisture Content and its Influence on the Roughness and Noise Emission during Wood Machining

Cleverson Pinheiro; Manoel Cléber de Sampaio Alves; Simone Simões Amaral

doi:10.4028/www.scientific.net/AMR.1088.680

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1088Moisture Content and its Influence on the...

Moisture Content and its Influence on the Roughness and Noise Emission during Wood Machining

Abstract:

Numerous factors influencing the surface quality of wood after machining, among them we highlight the machining parameters and the properties of the wood. In the analysis of the influence of these factors on machining and in determining the quality measurement systems are used to obtain surface characteristics, these systems are divided into methods of contact and non-contact. The method for mechanical contact performed with the aid of the surface roughness tester is the most valued in the measurement of roughness of wood, however, aiming at a greater agility in these measurements, there is a need to seek alternatives for evaluation of surface quality, and one of these options is to use the forms of indirect measurements of this quality, as for example, the use of noise emission during the machining process. With this, the aim was to analyze the influence of the moisture content of the wood, at different levels, on surface quality of the species Pinus elliottii, determined by the method of mechanical probing move and relate this roughness with the sound emission issued for each class of humidity, during machining. The planning of experiments and statistical analyses were performed with the help of Taguchi method. The specimens were conditioned in greenhouses climatizadoras automatics for obtaining three classes of humidity. Machining tests of wooden pieces were performed on a machining center specific for this type of material. The roughness values were measured by a roughness verifier and the noise emission values were measured by for a measurer sound pressure level. Statistically significant differences were observed, the significance level of 10 %, on roughness and noise emission between the three levels of moisture. It was observed that with the increase in the moisture content occurred an increase of roughness and a reduction in noise emission. Monitoring of surface quality through noise level is an interesting alternative to the method of mechanical contact.

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Periodical:

Advanced Materials Research (Volume 1088)

Pages:

680-685

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1088.680

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Online since:

February 2015

Authors:

Cleverson Pinheiro*, Manoel Cléber de Sampaio Alves, Simone Simões Amaral

Keywords:

Moisture Content, Noise Emission, Roughness, Taguchi

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