Characterizing surface defects in machine-planning of rubberwood (Hevea brasiliensis)

Despite its extensive application in the furniture manufacturing industry throughout the South East Asian region, the machine-planing characteristics of rubberwood (Hevea brasiliensis) are not completely understood. In an effort to optimize the process, a series of experiments were undertaken using...

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Main Authors: Ratnasingam, Jegatheswaran, Scholz, Frieder
Format: Article
Language:English
Published: Springer Berlin / Heidelberg 2007
Online Access:http://psasir.upm.edu.my/id/eprint/7402/
http://psasir.upm.edu.my/id/eprint/7402/1/Characterizing%20surface%20defects%20in%20machine.pdf
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author Ratnasingam, Jegatheswaran
Scholz, Frieder
author_facet Ratnasingam, Jegatheswaran
Scholz, Frieder
author_sort Ratnasingam, Jegatheswaran
building UPM Institutional Repository
collection Online Access
description Despite its extensive application in the furniture manufacturing industry throughout the South East Asian region, the machine-planing characteristics of rubberwood (Hevea brasiliensis) are not completely understood. In an effort to optimize the process, a series of experiments were undertaken using a Weinig 22A Unimat moulder (cutter-head rpm of 6000, cutter Ø 120 mm) to produce machined rubberwood surfaces with differing pitch lengths ranging from 0.8 mm to 1.5 mm, by altering the feed speed. The results showed that surfaces with a pitch length of cutter marks of 1.2 mm or more and a high knife rake angle were more prone to manifest machining defects, such as torn grain. This study shows that for machine planing of rubberwood the recommended cutter marks pitch length of 1.2 mm, achieved with a knife rake angle of 20°, will ensure the highest resultant surface quality and processing yield.
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spelling upm-74022016-02-02T08:58:14Z http://psasir.upm.edu.my/id/eprint/7402/ Characterizing surface defects in machine-planning of rubberwood (Hevea brasiliensis) Ratnasingam, Jegatheswaran Scholz, Frieder Despite its extensive application in the furniture manufacturing industry throughout the South East Asian region, the machine-planing characteristics of rubberwood (Hevea brasiliensis) are not completely understood. In an effort to optimize the process, a series of experiments were undertaken using a Weinig 22A Unimat moulder (cutter-head rpm of 6000, cutter Ø 120 mm) to produce machined rubberwood surfaces with differing pitch lengths ranging from 0.8 mm to 1.5 mm, by altering the feed speed. The results showed that surfaces with a pitch length of cutter marks of 1.2 mm or more and a high knife rake angle were more prone to manifest machining defects, such as torn grain. This study shows that for machine planing of rubberwood the recommended cutter marks pitch length of 1.2 mm, achieved with a knife rake angle of 20°, will ensure the highest resultant surface quality and processing yield. Springer Berlin / Heidelberg 2007 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/7402/1/Characterizing%20surface%20defects%20in%20machine.pdf Ratnasingam, Jegatheswaran and Scholz, Frieder (2007) Characterizing surface defects in machine-planning of rubberwood (Hevea brasiliensis). European Journal of Wood and Wood Products, 65 (4). pp. 325-327. ISSN 1436-736X http://dx.doi.org/10.1007/s00107-006-0163-3 10.1007/s00107-006-0163-3
spellingShingle Ratnasingam, Jegatheswaran
Scholz, Frieder
Characterizing surface defects in machine-planning of rubberwood (Hevea brasiliensis)
title Characterizing surface defects in machine-planning of rubberwood (Hevea brasiliensis)
title_full Characterizing surface defects in machine-planning of rubberwood (Hevea brasiliensis)
title_fullStr Characterizing surface defects in machine-planning of rubberwood (Hevea brasiliensis)
title_full_unstemmed Characterizing surface defects in machine-planning of rubberwood (Hevea brasiliensis)
title_short Characterizing surface defects in machine-planning of rubberwood (Hevea brasiliensis)
title_sort characterizing surface defects in machine-planning of rubberwood (hevea brasiliensis)
url http://psasir.upm.edu.my/id/eprint/7402/
http://psasir.upm.edu.my/id/eprint/7402/
http://psasir.upm.edu.my/id/eprint/7402/
http://psasir.upm.edu.my/id/eprint/7402/1/Characterizing%20surface%20defects%20in%20machine.pdf