Estudio de trabajabilidad de cuatro especies maderables de bosque secundario del Sur de la Amazonia Ecuatoriana
The present study focuses on finding the optimal parameters of workability of wood four species: Otoba parvifolia (Markgr.) A.H. Gentry, Piptocoma discolor (Kunth) Pruski, Pourouma cecropiifolia C. Martius y Miconia glaberrima (Schltdl.) Naudin, secondary forest species for the South in the Ecuadori...
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| Formato: | bachelorThesis |
| Lenguaje: | spa |
| Publicado: |
2014
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| Acceso en línea: | http://dspace.unl.edu.ec/jspui/handle/123456789/11907 |
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Agregar Etiqueta | Sumario: | The present study focuses on finding the optimal parameters of workability of wood four species: Otoba parvifolia (Markgr.) A.H. Gentry, Piptocoma discolor (Kunth) Pruski, Pourouma cecropiifolia C. Martius y Miconia glaberrima (Schltdl.) Naudin, secondary forest species for the South in the Ecuadorian Amazon following the technical recommendations of the Manual of Standards of the American Society for Testing and Materials (ASTM -D -1666 -64) adapted for testing tropical small timber. Five trials were conducted Workability: brushed, molding, drilling, grinding and turning, for this 20 specimens per species 10 with tangential cutting plane and 10 with plane radial cut was used. In the trial of brushing was taken into account the shear plane , the grain and the percentage of defects , in the molding test was considered the cutting plane , the direction of the grain and defects chipped , torn and fluffy in the test drilling is worked with two feed rates and surface quality at the inlet and the outlet of hoyado , in testing sanding scored worked with two types of sanding and defect scoring and fluffy calculated , turning in the test worked with two tools, two angles of cut and torn defects and fluffy. From the results obtained it can be concluded that secondary forest species are suitable for work planing, molding and sanding, while for drilling and turning the results are not as efficient as for the previous tests, we can also conclude that optimal speeds are lower when working with the grain and increase when work is against the grain, also showed that the grain started is the most difficult to avoid and correct. |
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