QIAO Haopeng,GUO Xuguang,SUN Yaoxing,et al.Effects of Laser Cutting Parameters on Kerf Size of Abies nephrolepis[J].Chinese Journal of Wood Science and Technology,2026,40(03):57-64.DOI: 10.12326/j.2096-9694.2026004.
Effects of Laser Cutting Parameters on Kerf Size of Abies nephrolepis
To promote the application of laser technology in the precision wood processing industry
this study investigated the effects of laser cutting parameters
including working distance (
A
)
feed rate (
B
)
and laser power (
C
)
on kerf depth and kerf width of
Abies nephrolepis
and established mathematical models to predict the kerf size. Multifactor completely randomized analysis of variance
interaction effect analysis
and Tukey's honestly significant difference
post
-
hoc
test were used to examine the significance of the main and interaction effects of laser cutting parameters on kerf size. The results showed that the cutting parameters
A
B
and
C
had extremely significant main effects on both kerf depth and kerf width (
P
<
0.001). According to partial
η
² values
the order of main effect size for kerf depth was
C
>
B
>
A
while that for kerf width was
A
>
B
>
C
. Both second-order and third-order interaction effects reached significant levels
and their influence on kerf depth and kerf width followed the order
A
×
B
>
A
×
B
×
C
>
B
×
C
>
A
×
C
indicating obvious multi-parameter coupling during laser cutting. Based on the established regression equations
the cutting parameter
A
showed a nonlinear regulatory effect on laser cutting of fir
whereas the cutting parameters
B
and
C
exhibited approximately linear effects. The prediction errors for cutting performance were about 21.30% for kerf depth
and 24.94% for kerf width
respectively. Therefore
the cutting parameter working distance
could be preferentially fixed in practical production to improve process stability.
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