Abstract—The research detailed in this paper investigates the
chip formation modes for woodworking handsaw teeth. Two
tooth geometries (beveled and un-beveled) were evaluated using
a single tooth rig. A high speed video camera was used to
observe the chip formation in real time. For both tooth
geometries the video footage provides evidence of a shearing
mechanism cutting along the wood grain, and a bending
mechanism cutting across the wood grain. Un-beveled teeth
(with orthogonal edges) generally yield high cutting forces yet
are very effective at removing material along the wood grain in a
“chisel like” cutting action. Beveled teeth with sharp lateral
edges generally yield low cutting forces and are well suited to
severing the wood fibers perpendicular to the grain in a “knife
like” cutting action.
Index Terms—Wood sawing, high speed photography,
cutting mechanics.
The author are with the School of Mechanical and Systems Engineering,
Newcastle University, Newcastle upon Tyne, United Kingdom (e-mail:
andrew2.naylor@gmail.com).
[PDF]
Cite:Andrew Naylor, "Evaluating the Cutting Mechanics of Woodworking
Hand-Saw Teeth," International Journal of Materials, Mechanics and Manufacturing vol. 2, no. 2, pp. 113-116, 2014.
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