environmentally friendly fine machining process of wood taiwan china wen-ching su * yiren wang and...
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Environmentally Friendly Fine Machining Process of Wood
Environmentally Friendly Fine Machining Process of Wood
Taiwan
China
Wen-Ching Su* Yiren Wang and Huoh-Jong Shiau
Wen-Ching Su* Yiren Wang and Huoh-Jong Shiau
Good morning! Welcome to Taiwan!
Aim of work and methodsAim of work and methods
A self-designed two-step surface planer with oblique angles of 15° and 20° used to machine China-fir, hard maple and red oak.
Apparatus of two-step surface planer
Aim of work and methodsAim of work and methods
The surface quality between one-set and two-set oblique
cutting will be explored.
The surface quality between one-set and two-set oblique
cutting will be explored.
The machined surfaces were compared to
sanding and planning.
The machined surfaces were compared to
sanding and planning.
ObjectObject
ResultsResults
Fig.1 Chip formation
It could produce different chips for the same oblique angle in cutting softwood and
hardwood. China fir Hard maple
ResultsResults
Fig.2 Surface roughness
The peak of roughness profile was near the center line, that is, the latewood did not protrude the
earlywood on the machining surface of surface planer.
sanding surface
planning surface
oblique cutting surface
ResultsResults
Fig.3 SEM observation of machining surface
The surface structure of wood was crushed or torn after planning. The damage surface could removed by the
two-step oblique cutting
A-sanding surface, B-planning surface, C-oblique cutting surface
planning surface
sanding surface
oblique cutting surface
ConclusionsConclusions
The planning surface processed by oblique cut once more could remove the deformation layer of surface to
show the wood structure clearly
Obtain a more fine and smooth surface.Obtain a more fine and smooth surface.
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