Original paper(Vol.48 No.9 pp.1059)

Characteristics of laser machining of MDF

Hata Keisuke; Okabe Toshihiro; Otsuka Masahisa

Abstract:As part of a study on the applicability of laser beam machining to woodceramics, the response of MDF to laser beam was investigated under various conditions.
The results are summarized as follows:
(1)Removal depth increased with increasing materials density.
(2)The difference in the extent of burning, between upper and lower layer of machined surface increased with the increase in the energy density of laser beam.
(3)The kerf on the machined surface contained taper. The amount of taper depends on both energy density and defocus distance of laser beam.
(4)The kerf width increase with increase in beam power as well as in defocus distance.

Key Words:CO2 laser beam, energy density, kerf, carbon content, MDF, wood