{"@context":"https://schema.org","@type":"Article","id":"aerospace","industry":"航太產業","industryEn":"Aerospace","url":"https://cnc-factory-hub.replit.app/case/aerospace","clientType":"台灣北部無人機（UAV）研發製造廠（匿名）","part":"固定翼無人機機身骨架","material":"鋁合金 7075-T6","challengeSummary":"固定翼機身骨架結構複雜，多個不同角度特徵加工難度高，多次裝夾導致累積誤差風險，客戶亦要求 DFM 設計優化以降低成本。","tolerance":"±0.008 mm","quantifiedOutcomes":{"toleranceAchievementRate":"99.3%","leadTimeReduction":"40%（優化治具與製程）","costReduction":"18%（DFM 設計優化）"},"relatedMaterials":["鋁合金 7075"],"relatedServices":["cnc-milling"],"slug":"aerospace","industryZh":"航太產業","headlineZh":"航太結構件精密加工案例 — 7075 鋁合金高強度飛行器骨架","headlineEn":"Aerospace Structural Component CNC Machining — 7075 Aluminum High-Strength UAV Frame","clientDesc":"台灣北部無人機（UAV）研發製造廠（匿名），專注於工業偵察與農業噴灑用途的固定翼無人機系統。","challengeZh":"客戶需要為新一代固定翼無人機設計輕量化機身骨架，材質要求高強度 7075-T6 鋁合金，含多個異形薄壁腔體（壁厚 1.2 mm）與精密定位孔（±0.008 mm 位置度），單架骨架需 8 個不同子件、共計 24 個精密加工特徵點，傳統三軸加工需 12 次裝夾，累積誤差風險高。","challengeEn":"The client needed a lightweight airframe for a next-generation fixed-wing UAV in high-strength 7075-T6 aluminum, with thin-wall cavities (1.2 mm wall), precision locating holes (±0.008 mm positional tolerance), and 24 critical features across 8 sub-components requiring 12 conventional setups.","solution":[{"title":"DFM 製造可行性分析","desc":"建成精密工業工程師審查原始圖面，識別出 3 處壁厚不足與 2 處深孔深徑比超標（>5:1）問題，提出設計修改建議，使壁厚從 0.8 mm 調整至 1.2 mm，深孔改用分段鑽削方案，在不影響強度的前提下將加工成本降低 18%。"},{"title":"多面精密銑削策略","desc":"採用高重複定位精度治具設計，搭配多次裝夾精密銑削，將裝夾次數從 12 次優化至 6 次，有效降低累積誤差。切削參數針對 7075-T6 高強度鋁合金優化，配合硬質合金刀具，切削效率提升 35%。"},{"title":"薄壁夾持治具設計","desc":"為 1.2 mm 薄壁腔體設計專用真空吸盤夾持治具，確保加工振動最小化，表面粗糙度穩定達 Ra 0.8 μm，薄壁形變控制在 0.01 mm 以內。"},{"title":"精密量測全檢 + 出貨報告","desc":"所有關鍵定位孔以精密量測儀器逐件全檢，出具含 24 個量測特徵的完整量測報告，公差達成率 99.3%，隨貨附上材料合格證明（7075-T6 認證書）。"}],"metrics":[{"value":"99.3%","label":"公差達成率","sublabel":"精密量測全檢"},{"value":"40%","label":"交期縮短","sublabel":"優化治具減少裝夾"},{"value":"18%","label":"成本降低","sublabel":"DFM 設計優化"},{"value":"±0.008mm","label":"定位孔位置度","sublabel":"24 個特徵全數合格"}],"datePublished":"2026-07-24","relatedServiceLinks":[{"label":"CNC 銑床加工服務","href":"/#services"},{"label":"鋁合金 CNC 精密加工","href":"/#services"},{"label":"立即詢價","href":"/#contact"}],"_links":{"self":{"href":"/api/v1/case-studies/aerospace"},"collection":{"href":"/api/v1/case-studies"},"corporate":{"href":"/api/v1/corporate-summary"}}}