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현정인,바니크라메키 한국목재공학회 1980 목재공학 Vol.8 No.1
Quantitative assessment of edge blunting of saw-teeth was carried out by TALYSURF. 1. Using the following equation, the real shape of a saw-tooth can be traced on the graph of TALYSURF. Δh/h = VΔχ/Vχ {Δh : vertical distance of stylus h : vertical distance in chart VΔχ : velocity of stylus Vχ : velocity of chart 2. As shown on Fig 2, the error from stylus itself can be calculated by following equation. i) 13.8μ≤χ$lt;20.4μ y= -0.2246χ+ 4.59μ ii) 0≤χ$lt;13.8μ y= -√(18μ)²-χ²-1.42χ+32.7μ 3. The relationship between profile of saw-tooth and error from stylus itself can be calculated by following equation. E(%)=f(x)×r/18μ/f(R)×R/18.5μ-f(r)×r/18μe7100 E(%) = error of stylus / dullness of saw tooth × 100 r : radius of stylus tip R : radius of tip which is drawn in graph of talysurf f(r) : error of stylus f(R) : dullness of tip which is drawn in graph of talysurf 4. The graph of maximum error and profile of saw-tooth was parabola.