Analysis of the machined surface of the wood clones of <i>Toona ciliata</i> M. Roemer var. <i>australis</i>
DOI:
https://doi.org/10.5902/1980509837072Keywords:
Australian red cedar, Surface quality, Surface roughnessAbstract
The use and costs of solid wood products are directly linked to the quality of the feedstock. One example is the furniture market, the better the surface quality of the wood is, the greater its commercial value is. Knowing the behavior of wood during the machining process is an important parameter to characterize and give specific uses for each species. Thus, the aim of this study was to evaluate the surface quality of wood from Toona ciliata M. Roemer var. australis clones, its potential uses after the machining process and to define, among the evaluated clones, the one with the best surface quality. Thus, thirty-five trees (7 clones x 5 repetitions) were selected from a plantation located in the southern region of Minas Gerais state, from which 1m long logs were removed (0.3 to 1.3 m from the base), and later unfolding on boards. Drying took place in the shade and outdoors, until equilibrium humidity was reached. The machining process (planer and thicknessing) of the boards took place at the forward speeds of 6 m.min-1 and 30 m.min-1. The evaluations of the surface quality took place visually, according to the ASTM D-1666 (2011) standard and by the surface roughness test. Among the seven clones studied, the number 1 presented higher surface quality in machining and, in general, with the increase in the forward speed, there was a reduction in surface quality.Downloads
References
AGUILERA, A.; MARTIN, P. Machining qualification of solid wood of Fagus silvatica and Picea excelsa: cutting forces, power requirements and surface roughness. Holzals Rohun Werkstoff, Berlin, v. 59, n. 6, p. 483-488, 2001.
AMERICAN SOCIETY FOR TESTING AND MATERIALS. ASTM D-1666: standard method for conducting machining tests of wood and wood base materials. Philadelphia, 2011. 19 p.
ASSOCIAÇÃO BRASILEIRA DE NORMAS TÉCNICAS. NBR 11941: madeira: determinação da densidade básica. Rio de Janeiro, 2003. 6 p.
BHAT, K. M.; BHAT, K. V.; DHAMODARAN, T. K. Wood density and fiber length of Eucalyptus grandis grown in Kerala, India. Wood and Fiber Science, United States, v. 22, n. 1, p. 54-61, 2007.
BONDUELLE, A. Usinagem, material de corte e desgaste do gume. Revista da Madeira, Curitiba, v. 1, n. 64, p. 80-86, 2002.
COSTA, E. M. A madeira de eucalipto na indústria moveleira. In: SEMINÁRIO SOBRE PROCESSAMENTO E UTILIZAÇÃO DA MADEIRA DE REFLORESTAMENTO, 1996, Curitiba. Anais [...] Curitiba: ABPM; SBS, 1996. p. 75-89.
CRUZ, T. M. Avaliação da madeira de clones de Toona ciliata pela análise da superfície usinada. 2018. Dissertação (Mestrado em Ciência e Tecnologia da Madeira) – Universidade Federal de Lavras, Lavras, 2018.
DIAS JÚNIOR, A. F. et al. Caracterização da Madeira de Quatro Espécies Florestais para Uso em Movelaria. Revista Ciência da Madeira, Pelotas, v. 4, n. 1, p. 93-107, 2013.
GURAU, L. et al. Effect of species and grinding disc distance on the surface roughness parameters of medium density fiberboard. European Journal of Wood and Wood Products, Germany, v. 75, n. 3, p. 335-346, 2017.
KILIC, M.; HIZIROGLU, S.; BURDURLU, E. Effect of machining on surface roughness of wood. Building and Environment, England, v. 41, n. 8, p. 1074-1078, 2006.
MALKOÇOĞLU, A. Machining properties and surface roughness of various wood species planed in different conditions. Building and Environment, England, v. 42, n. 7, p. 2562-2567, 2007.
MITUTOYO. SJ-400Surface Roughness Tester - User's Manual.[S. l.], 2011. p. 14-38.
PEREIRA, K. M.; GARCIA, R. A.; NASCIMENTO, A. M. Rugosidade da superfície de madeiras amazônicas. Scentia Florestalis, Piracicaba, v. 46, n. 119, p. 347-356, 2018.
R CORE TEAM. R: a language and environment for statistical computing. Vienna: R Foundation for Statistical Computing, 2016.
SENAI. Acabador de móveis. Ubá: CFP; JAGS, 1995. 29 p.
SENAI. Fundamentos teóricos da afiação e manutenção de ferramentas para a indústria moveleira e madeireira. São José dos Pinhais, 1996. 73 p.
SILVA, J. R. M. et al. Parâmetros de qualidade da usinagem para a determinação dos diferentes usos da madeira de Eucalyptus. Cerne, Lavras, v. 15, n. 1 p. 75-83, 2009.
SILVA, J. R. M. et al. Preparação de superfícies de madeira e derivados para receber acabamento. Boletim Agropecuário, Lavras, v. 28, p. 5-26, 1999.
SILVA, M. P. S. et al. Growth and quality of australian cedar saplings originated from diferente multiclonal minigarden systems. Semina: Ciências Agrárias, Londrina, v. 37, n. 3, p. 1127-113, 2016.
SORAGI, L. C. Qualidade de superfícies usinadas em madeira de Toona ciliata M. Roem. 2009. Dissertação (Mestrado em Ciência e Tecnologia da Madeira) - Universidade Federal de Lavras, Lavras, 2009.
SOY, A. S.; ÖHRSTRÖM, C. Investigation and evaluation of methods for measuring surface texture on worktops and kitchen fronts. 2013. Thesis (Master) – Lund University, Lund, 2013.
TAYLOR HOBSON. Surtronic S116 operation instructions. [S. l.], 2008. Disponível em: http://taylorhobson.com.br/ detalhes.asp?linha=1&categ=1. Acesso em: 24 jun. 2017.
TRUGILHO, P. F.; LIMA, J. T.; MENDES, L. M. Influência da idade nas características físico-químicas e anatômicas da madeira de Eucalyptus saligna. Cerne, Lavras v. 2, n. 1, p. 94-111, 1996.
WEISSENSTEIN, C. Usinagem, condições da ferramenta decide bom acabamento. Revista da Madeira, Curitiba, n. 57, p. 30-32, 2000.
WEST, P. W. Growing plantation forests. 2th ed. [S. l.]: Springer International Publishing, 2014. 329 p.
