THE ROUGHNESS OF SURFACES VENEERED WITH PEAR WOOD VENEER AND PROCESSED BY SANDING

Matyas MARTHY
Drd.Eng. - Universitatea "Transilvania" din Brasov - Facultatea de Industria Lemnuluis
Address: B-dul Eroilor nr.29, 500036 Brasov, Romania
Tel: +40 268 412921/int. 192. Fax:+40 268 415315.
E-mail: m_marthy@unitbv.ro

Ivan Cismaru
Prof.Dr.Eng. - Universitatea "Transilvania" din Brasov - Facultatea de Industria Lemnului
Address: B-dul Eroilor nr.29, 500036 Brasov, Romania
Tel: +40 268 412921/int. 192. Fax:+40 268 415315.
E-mail: icismaru@unitbv.ro

Abstract: This paper presents the study of the influence of the sanding process parameters on the roughness of chipboard surfaces veneered with pear wood veneer, which assures the predefined quality of the sanded surfaces. The roughness has been measured with an optical roughness-measuring machine with focalized light beam, type Microprof, produced by the German company: FRT (Fries Research & Tehnologies). The sanding of the panels has been performed on a wide belt sanding machine, with grit sizes of the belts: 100, 120, 150, 180. The results obtained after the measuring process confirm the idea that: by increasing the grit size, the quality of the processed surfaces also increases.
The conclusions point on the fact that: the quality of the surfaces veneered with pear wood veneer is good enough, so as to enable the most frequent use of this wood species in the furniture industry. The neglection of pear wood until now is due to the low quantity of available wooden material in Romanian forests.

Key words: abrasive belt type, pear wood veneer, sanding, surface roughness, veneered chipboard.

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