Characterizing Surface Defects of Solid Wood of Dark Red Meranti (Shorea sp.),Melunak (pentace sp.) and Rubberwood (Heavea Brasiliensis) in Planning Process

Farrokhpayam, Saeid Reza and Ratnasingam, Jegatheswaran and Bakar, Edi Suhaimi and Tang, Sai Hong (2010) Characterizing Surface Defects of Solid Wood of Dark Red Meranti (Shorea sp.),Melunak (pentace sp.) and Rubberwood (Heavea Brasiliensis) in Planning Process. Journal of Applied Sciences, 10 (11). pp. 915-918. ISSN 1812-5654

Full text not available from this repository.


The machining parameters affect surface quality and usually, wood planing process is heavily influenced by external parameters. External parameters concern mainly the machining process parameters such as: the feeding speed, the depth of cut, the cutting tool diameter and geometry, the cutting geometry, the cutting technique (up or down milling). This study was carried out to determine the planing properties of naturally grown Melunak (Pentace sp.), Dark Red Meranti (Shorea sp.) and Rubberwood (Hevea brasiliensis). Some machining defects such as fuzzy grain, torn grain and chip marks often occur in lumbers at the planing process and it decreases the machining yield. To understand and optimize the planing characteristics of this wood species, a series of experiments were carried out using a weinig Unimate 23E moulder (cutter-head rpm of 6000, cutter diameter 120 mm) to produce machined surface with differing depth of cut ranging from 0.8 to 2.4 mm, by altering the feed rate from 8 to 16 m min-1 according to ASTM D 1666-87. Based on the preliminary results of this study, the best results were obtained at 0.8 mm of depth of cut and feed rate of 8 m min-1 for Dark Red Meranti. While, the poorest results was on Melunak wood at 2.4 mm of depth of cut and 16 m min-1 of feed speed. This research also revealed that the combination of feed rate, depth of cut and wood species used had no significant effect on the surface quality of samples.

Item Type:Article
Faculty or Institute:Faculty of Engineering
Publisher:Asian Network For Scientific Information
DOI Number:10.3923/jas.2010.915.918
ID Code:11881
Deposited By: kmportal
Deposited On:19 Apr 2011 08:42
Last Modified:19 Apr 2011 08:52

Repository Staff Only: Edit item detail

Universiti Putra Malaysia Institutional Repository

Universiti Putra Malaysia Institutional Repository is an on-line digital archive that serves as a central collection and storage of scientific information and research at the Universiti Putra Malaysia.

Currently, the collections deposited in the IR consists of Master and PhD theses, Master and PhD Project Report, Journal Articles, Journal Bulletins, Conference Papers, UPM News, Newspaper Cuttings, Patents and Inaugural Lectures.

As the policy of the university does not permit users to view thesis in full text, access is only given to the first 24 pages only.