Impact Extrusion Tube-2
描述
Aluminum Closed-End Impact Extrusion Tube: Wall and Rounded Base in One Stroke
The aluminum closed-end impact extrusion tube is a thin-walled tube with one open end and a rounded closed base. Al Forge Tech (AFT) forms the wall and base from a single aluminum slug by cold impact extrusion, so there is no weld or seam at the bottom. Cup-shaped tubes like this are used for housings that must contain pressure or seal, such as cylinder bodies, gas or fluid reservoirs, filter housings and shock absorber bodies.
When an end cap is welded onto tube stock, the area around the weld often becomes a leak path and a weak point. A one-piece closed-end tube avoids this, and the corner between wall and base keeps a continuous grain flow. After forming, AFT can turn the open end, machine threads or grooves and check for surface defects on its fluorescent penetrant inspection line, supplying housings ready for assembly.
主要功能
- Wall and rounded base formed in one piece with no weld or seam
- Continuous grain flow at the corner, suited to pressure housings
- Open end machinable for threads, grooves and sealing faces
- Fluorescent penetrant inspection for surface cracks and defects
Aluminum Closed-End Impact Extrusion Tube Specifications and Manufacturing Capability
| 商品 | 詳細 |
|---|---|
| 產品類別 | 鋁鍛工業五金 |
| 申請 | Cylinder bodies, gas/fluid reservoirs, filter housings, shock absorber bodies |
| 主要過程 | Cold impact extrusion (cold forging presses 260T–2,500T) |
| 材質 | Selected to customer specification; 2xxx, 5xxx, 6xxx and 7xxx series aluminum alloys available (e.g. 2014, 6061, 6082, 7075) |
| 熱處理 | 根據合金與強度要求而提供的內部 T4 處理方案（8 套）及 T6 人工老化處理方案（7 套） |
| 二次加工 | CNC 加工（52 台加工中心、30 台銑床）、銑削、振動磨削 |
| 表面處理 | 按要求進行陽極氧化（包括硬陽極氧化）、噴射粉碎、電子塗層或塗漆。 |
| 檢查 | Zeiss CMM (4 units), hardness testers, spectrometer, fluorescent penetrant inspection line |
| 尺寸與公差 | 按客戶提供2D/3D圖紙 |
| 品質管理系統 | IATF 16949:2016、ISO 14001:2015 |
Aluminum Closed-End Impact Extrusion Tube Manufacturing Process
- 繪圖評估與 DFM我們確認合金、載荷方向和關鍵尺寸，然後執行 QForm 模擬，以預測金屬流動和缺陷風險。.
- 設計與製造銑刀組數（例如，阻斷刀和完成刀）視零件的複雜程度而定，銑刀輪廓則使用便攜式3D掃描儀進行檢查。.
- Cold forging: impact extrusion on 260T–2,500T presses, suited to thin-walled, tubular and dimensionally repeatable parts.
- 熱處理T4 溶液處理和 T6 人工老化處理均在廠內進行，參數由合金和強度要求設定。.
- CNC加工 以及完成孔、螺紋和接合面均經過機械加工，然後根據需要進行拋光、振動拋光、噴丸或陽極氧化處理。.
- 檢查與運輸尺寸、硬度及化學成分均通過 CMM、硬度測試儀及分光光度儀進行驗證，且所有批次的產品均遵照 IATF 16949 的標準進行追蹤。.
常見問題
Why is a closed-end tube better than a tube with a welded end cap for pressure housings?
A welded end cap leaves a weld bead and heat-affected zone whose strength and density are usually lower than the base metal, and which is a common starting point for leaks. In an impact extruded closed-end tube, base and wall come from the same piece of material with no seam, so stress under internal pressure is distributed more continuously. Actual pressure capability must still be validated for the alloy, wall thickness and design conditions.
What secondary machining can be done on the open end?
Typical operations include facing the open end, finishing the bore and OD, internal or external threads, O-ring grooves and chamfers. AFT performs impact extrusion, heat treatment and turning in one facility, with anodizing available, which removes inter-plant steps. Please specify sealing-surface roughness and thread standards on the drawing so machining and inspection can be planned.
How does a forged aluminum Aluminum Closed-End Impact Extrusion Tube compare with casting or machining from billet?
Forging shapes aluminum in the solid state under pressure, so the grain flow follows the part contour and the porosity and shrinkage common in castings are avoided. Compared with machining from solid billet, a near-net-shape forging removes less material and shortens machining time. For a Aluminum Closed-End Impact Extrusion Tube under repeated loads, forging balances strength and weight; the final choice still depends on design loads and volume.
What information do you need to quote the Aluminum Closed-End Impact Extrusion Tube?
Please send a 3D model and 2D drawing, alloy grade and temper, critical tolerances, surface finish requirements, estimated annual volume and target delivery date. Complete data lets our engineers judge forging feasibility, the number of die sets and the machining scope for the Aluminum Closed-End Impact Extrusion Tube at the quotation stage. If the design is still conceptual, a sketch is enough to start a DFM discussion.
Can the Aluminum Closed-End Impact Extrusion Tube be anodized or given other surface finishes?
Yes. Al Forge Tech offers anodizing (including hard anodizing), shot blasting, vibratory finishing, e-coating and painting, plus pickling and ultrasonic washing lines to clean parts after machining. Please note the finish type and film thickness on the drawing so machining allowances and cosmetic standards for the Aluminum Closed-End Impact Extrusion Tube can be evaluated together.
Request a Quote for the Aluminum Closed-End Impact Extrusion Tube
Developing a new Aluminum Closed-End Impact Extrusion Tube or converting an existing part to aluminum forging? Send us your 3D/2D drawings, alloy and temper, annual volume and finishing requirements. Our engineering team will reply with a feasibility review, die plan and quotation.
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若要比較相似的零件，請瀏覽 鋁鍛工業五金 以及我們的 industrial hardware forging applications, 或參觀 公司簡介 關於我們的設備與認證。.
