- 學位論文
三種加工條件對特殊鋼材之影響研究
Study of the Inffuence of Three Cutting Pararmeters to Specialty Steels
摘要
17-4PH 不銹鋼、鈦合金、鎳基超合金、鉻鉬低合金鋼等材料，應用在現今 的產業界已非常普遍，從輕工業到重工業應用相當廣泛，它之所以能使用於各行各業也因為它有許多優異的金屬特性。在材質上擁有耐腐蝕、抗氧化等，而使用端銑刀切削加工是切削最常見的加工之一。本文透過實驗探討應用端銑刀切削孔的孔品質並利用田口方法研究中選定出銑削粗糙度值中的可控因子（Control Factor），運用田口分析法L9(33)直交表來實驗設計並運用望小品質特性所產生的SN 比應用於銑削粗糙度值作量測統計分析。藉由SN 比輔助表取得端銑刀銑削參數的最適條件。並透過變異數分析的方式，得到銑削性能實驗、銑削品質實驗中各因素對結果產生的影響程度。實驗結果發現銑削粗糙度值田口分析貢獻度大小依序如下：主軸轉速＞進給率＞切削深度之順序關係。而17-4PH 不銹鋼最適當加工參數為A1、B1、C1(主軸轉速310(rpm ) 、切削進給31.6(mm/min) 、切削深度0.1(mm))；鈦合金最適當加工參數為A1、B3、C3；鎳基超合金最適當加工參數為A2、B3、C1；鉻鉬低合金鋼最適當加工參數為A3、B2、C1；以上四種材料在加工後表面粗糙度Ra 已可以達到0.4μm，顯示其水準符合粗糙度在0.4~0.8μm 要求。
並列摘要
17-4PH Stainless Steel、Ti -6A l- 4 V、Inconel 718、SAE 4130 is widely used from light to heavy industry. Due to its outstanding features, 17-4PH Stainless Steel has effective performance in various uses. The 17-4PH Stainless Steel material contains the features such as anti- rust, anti- oxygen, etc, milling cutters is one of the commonly used operations in Stainless Steel metal machining. This research optimize the milling and angle inclination varied, utilizesTaguchi method L9(33) Orthogonal Array table to do experimental design. It also utilizes The Mimum-is-best quality characteristics produce the SN ratio, discovered that these factors change can affect the spindle speed and tool feed Cutting Depth varied. by Taguchi Method and referring the SN Ratio Assistant table to obtain the most proper parameters of milling.The results show that the Contribution：spindle speed ＞tool feed＞Cutting Depthof Sequential Relationship。Optimumof Machining Parameters in Milling A1、B1、C1(spindle speed 790（rpm）tool feed31.6(mm/min）Cutting Depth 0.1(mm)) ，after milling cutters the surface roughness Ra has been able to reach 0.4μm , indicating that the level of compliance with roughness and then 0.4 ~ 0.8μm requirements。