3Dプリンティング用アルミニウムパウダー
目次
3D印刷用アルミニウムパウダー is increasingly used in additive manufacturing to create lightweight, high-strength parts across industries. This guide provides a comprehensive overview of aluminum powders for 3D printing.
Introduction to Aluminum Powder for AM
Aluminum is a popular material for 3D printing due to:
- Low density – 2.7 g/cc
- 高い比強度
- 優れた熱伝導性と電気伝導性
- 良好な耐食性
- Weldability and machinability
- Low material costs
Key properties of aluminum powder:
- 球状粉末の形態
- 制御された粒度分布
- High purity levels over 99.5% Al
- Derived from recycled aluminum in some cases
- Available for binder jetting, DMLS, SLM processes
Aluminum powder enables printing of lightweight components impossible to manufacture by other methods.
Aluminum Powder Types for Additive Manufacturing
Various aluminum alloy powders are used for AM:
Aluminum Powder Types for 3D Printing
| タイプ | 説明 | アプリケーション |
|---|---|---|
| AlSi10Mg | Cast alloy with silicon and magnesium | 航空宇宙、自動車 |
| AlSi7Mg | Moderate strength alloy with Si, Mg | Industrial machines |
| 6061 | Medium strength wrought alloy with Mg, Si | Custom brackets, fixtures |
| 5XXX series | 5% magnesium for strength | Tooling, marine |
| 純アルミニウム | Unalloyed aluminum >99.7% | Thermal management, electrical |
Specialized alloys are being qualified for additive techniques to match conventional alloy properties.
構成 3D印刷用アルミニウムパウダー
Typical composition of aluminum alloy powders for AM:
Composition of Aluminum Print Powders
| 合金 | アル | Mg | Si | フェ | 銅 | ムン |
|---|---|---|---|---|---|---|
| AlSi10Mg | バル | 0.2-0.5% | 9-11% | <0.55% | <0.05% | <0.45% |
| AlSi7Mg | バル | 0.1-0.5% | 6-8% | <1% | <0.1% | <0.1% |
| 6061 | バル | 0.8-1.2% | 0.4-0.8% | <0.7% | 0.15-0.4% | <0.15% |
| 5056 | バル | 4.5-6% | <0.4% | <0.5% | <0.1% | 0.1-0.5% |
Silicon improves castability and fluidity. Magnesium enhances strength. Impurities are minimized for AM suitability.
Key Properties of Aluminum Print Powder
Properties of Aluminum Print Powder
| プロパティ | 価値 |
|---|---|
| 密度 | 2.7 g/cc |
| 融点 | 475-650°C |
| 熱伝導率 | 120-180 W/mK |
| 電気伝導度 | 35-38 MS/m |
| 引張強さ | 230-520 MPa |
| 伸び | 3-8% |
| ヤング率 | 68～72GPa |
| 硬度 | 65-100 HB |
The properties make aluminum suitable for lightweight, thermally and electrically conductive printed parts.
Aluminum Powder Characteristics for AM
Aluminum Powder Characteristics
| パラメータ | 詳細 | 意義 |
|---|---|---|
| 粒子形状 | 球形 | 流動性の向上 |
| サイズ分布 | 10-100 μm | Controls part resolution |
| 見かけ密度 | 1.2-1.8 g/cc | Affects final part density |
| 流量 | 20-30 s/50g | Indicates powder spreadability |
| 酸化物含有量 | < 3% | Impacts powder flow and sintering |
| 水素含有量 | < 0.15% | Reduces porosity in parts |
Sphericity and controlled particle size distribution are critical for aluminum AM powders.
Specifications for Aluminum Print Powder
Aluminum Powder Specifications
| パラメータ | Range/Limit | スタンダード |
|---|---|---|
| 粒子径 | 10-63 μm | ASTM B214 |
| 見かけ密度 | > 0.80 g/cc | ASTM B212 |
| ホール流量 | <30秒/50g | ASTM B213 |
| 酸化物含有量 | < 3% | ASTM B237 |
| Mg, Si composition | Alloy limits | ASTM B937 |
| 不純物 | Fe, Cu, Mn limits | ASTM B937 |
Key powder characteristics and composition are verified against standardized specifications.
Benefits of Using 3D印刷用アルミニウムパウダー
Benefits of Aluminum for 3D Printing
- Lightweighting – high strength-to-weight ratio
- 材料廃棄の削減
- Increased design freedom and part consolidation
- Elimination of tooling and machining
- On-demand and just-in-time fabrication
- 高い熱伝導性と電気伝導性
- 優れた耐食性
- Good finishing and post-processing
- Cost-effectiveness for mid-volume production
Aluminum powder additive manufacturing provides significant advantages over conventional techniques for lightweight structural and functional parts.
Applications of 3D Printed Aluminum Components
Industry Applications of 3D Printed Aluminum
| 産業 | コンポーネント |
|---|---|
| 航空宇宙 | Airframe brackets, heat exchangers, turbine blades |
| 自動車 | Chassis, powertrain parts, custom interiors |
| インダストリアル | Robotics, tooling, fixtures, mounts |
| 消費者 | Electronics housings, drone bodies |
| 建築 | Decorative panels, wall cladding |
| メディカル | 整形外科用インプラント、人工装具 |
Additive manufacturing enables previously impossible aluminum geometries, consolidation, and customization across diverse sectors.
How to Choose Aluminum Printer Powder Suppliers
Choosing an Aluminum Powder Supplier
- Experience producing AM powders
- Capability to customize alloys and particle size
- Consistent quality and reproducibility
- 競争力のある透明性の高い価格設定
- 技術的専門知識と顧客サポート
- Batch analysis and certification data
- Inventory and shorter lead times
- Capability to meet demand fluctuations
- Responsible and sustainable sourcing
A reliable aluminum powder partner delivers customized and qualified powders tailored to application requirements.
Aluminum Print Powder Manufacturers
Aluminum Powder Suppliers for AM
| 会社概要 | 所在地 |
|---|---|
| サンドビック | ドイツ |
| エーピーアンドシー | カナダ |
| プラクセア | アメリカ |
| カーペンター添加剤 | アメリカ |
| 高度なパウダーとコーティング | アメリカ |
| LPWテクノロジー | 英国 |
These leading suppliers provide controlled particle sizes, spherical morphology, custom alloys, and extensive qualification data to ensure optimal prints.
Cost Analysis of Aluminum Print Powder
Aluminum Powder Cost
| グレード | kgあたりのコスト |
|---|---|
| 純アルミニウム | $50-$100 |
| AlSi10Mg | $55-$120 |
| 6061 alloy | $60-$150 |
| 5XXX series | $65-$140 |
Prices depend on alloy composition, impurity levels, particle characteristics, and purchase volume. Significant cost savings versus titanium alloys.
Comparison of Aluminum with Other Print Materials
Comparison of Aluminum Powder with Alternatives
| パラメータ | アルミニウム | チタン | ステンレス鋼 |
|---|---|---|---|
| 密度 (g/cc) | 2.7 | 4.5 | 8.0 |
| 引張強さ (MPa) | 230-520 | 900-1200 | 500-1000 |
| 熱伝導率 (W/mK) | 120-180 | 7-16 | 15-30 |
| Electrical conductivity (MS/m) | 35-38 | 2.4 | 1.5 |
| kgあたりのコスト | $50-$150 | $200-$500 | $20-$50 |
| 印刷適性 | フェア | 難しい | 素晴らしい |
Aluminum provides the best combination of strength, weight, conductivity and cost. Stainless steel is easier to print but heavier. Titanium is challenging.
よくある質問
Q: What is the typical particle size for aluminum AM powder?
A: Particle sizes from 10-45 microns are common, with a tight distribution around 20-35 microns for optimal flow and high resolution.
Q: What aluminum grades are compatible with 3D printing?
A: AlSi10Mg, AlSi7Mg, and 6xxx series alloys like 6061 have been qualified. 5XXX grades are also gaining popularity for higher strength.
Q: Which AM process is best suited for aluminum?
A: DMLS, SLM, and binder jetting allow aluminum printing. Binder jetting provides faster build speeds but DMLS and SLM offer better mechanical properties.
Q: Does aluminum powder require special handling precautions?
A: Finely divided aluminum can be flammable or explosive in air. Inert gas glove boxes are recommended for storage and handling.
Q: Are heat treatments required for 3D printed aluminum?
A: Yes, solution treatment, aging, annealing, or stress relieving may be performed to achieve desired material properties and microstructures.
Q: What surface finishes can be achieved with aluminum AM parts?
A: As-printed finishes around 15 microns Ra can be further smoothed to under 1 micron Ra using media blasting, grinding, sanding, and polishing.
Q: Can aluminum printed parts match bulk alloy properties?
A: With optimized parameters and post-processing, additive parts can achieve mechanical properties on par with or better than traditionally processed aluminum alloys.
Q: What design principles apply for aluminum AM?
A: Print orientation, minimal supports, generous internal radii, and accounting for thermal stresses improves results. Wall thicknesses over 1 mm are preferred.
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MET3DP Technology Co., LTDは、中国青島に本社を置く積層造形ソリューションのリーディングプロバイダーです。弊社は3Dプリンティング装置と工業用途の高性能金属粉末を専門としています。
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