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Environmentally Friendly Fine Machining of Wood Using Two-Step Oblique Cutting Techniques

This study presents an innovative approach to fine machining wood, focusing on an environmentally friendly two-step surface planer operating at oblique angles of 15° and 20°. The research investigates the surface quality of machined wood, specifically China-fir, hard maple, and red oak, comparing results to traditional sanding and planning methods. The findings indicate that this oblique cutting process can effectively produce different chip formations and enhance surface smoothness by removing deformation layers, revealing clearer wood structure. The study highlights the potential for more sustainable wood machining practices.

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Environmentally Friendly Fine Machining of Wood Using Two-Step Oblique Cutting Techniques

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  1. Environmentally Friendly Fine Machining Process of Wood Wen-Ching Su* Yiren Wang and Huoh-Jong Shiau China Taiwan Good morning! Welcome to Taiwan!

  2. Aim 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

  3. Aim of work and methods The surface quality between one-set and two-set oblique cutting will be explored. Object The machined surfaces were compared to sanding and planning.

  4. Results It could produce different chips for the same oblique angle in cutting softwood and hardwood. China fir Hard maple Fig.1 Chip formation

  5. Results planning surface 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 oblique cutting surface Fig.2 Surface roughness

  6. Results A-sanding surface, B-planning surface, C-oblique cutting surface planning surface sanding surface oblique cutting surface 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

  7. Conclusions 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.

  8. Thank you for your listening!

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