木材銑削之端銑刀優化設計研究

The Study of Optimal End-Mills Design for Milling Wood

王硯仕(Yan-Shih Wang)

指導教授 ： 李炳寅

共同指導教授 ： 陳進益(Jenn-Yih Chen)

國立虎尾科技大學/工程學院/機械與電腦輔助工程系碩士班/碩士(2017年)

摘要

近年來隨著科技與工業的進步促使工藝精品的發展，產品除了應具有良好的尺寸與幾何精度外，更重要的是精細的外觀表面。在這些高端的市場需求下，使得加工中所產生的毛邊減少，而生產製造過程中重要的刀具則是影響表面品質的關鍵之一。
樟樹具有很好的木質，也是用途廣泛的樹種，常用於雕刻、家俱與建材等方面。本研究主旨是利用切削實驗測試樟樹的實木加工，目標是降低加工時所產生的木材毛邊，為了考量時間、材料成本與實驗效率，故本實驗利用L18(21x37)田口直交表配置不同的刀具幾何角度與切削參數等獨立因子，依據結果進行變異數分析以得到最佳的實驗因子組合。由實驗分析與驗證的結果得知，影響品質特性最大的因子是切削速度、進給速率與徑向切削角，使用較快的切削速度與較慢的進給速率，搭配銳利的徑向切削角，將能得到較小的毛邊長度與更好的加工品質。

關鍵字

田口方法 ； 刀具幾何 ； 木材銑削 ； 毛邊。

並列摘要

Over the last several decades there has been facilitated the advancement of technology which improves the development of quality products, incoulding the fine diemsional accuracy, geometric accuracy, another point of paramount importance is perfectly finish surface. In consideration of high-level demands, reducing and removing the burrs from machining is of great importance. Cutting tools are the most critical factor that influence surface quality during the production process.
Comphor Wood is elegant material that commonly has been used to building, furnitre, and sculptures. The purpose of this study is to use experimental milling that decrease burr of solid wood. In order to consider the influence of time, material cost and experimental efficiency. In this paper, the experiment used to Taquchi method by Taguchi orthogonal table L18(21x37) that variable factor has been configured different tool geometry angle and cutting parameters. According to the results of ANOVA that we can obtain the best combination of factor and level from this experiment. The results of empirical analysis demonstrated that cutting speed, feed rate, and radial rake angle are significant factors. It would be able to gain samller burr and better surface quality if the cutting speed increasing and the feed rate decreasing with sharp radial cutting angle.

並列關鍵字

Taguchi method ； tool geometry ； wood milling ； burr.

參考文獻

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