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.

3D印刷用アルミニウムパウダー

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
AlSi10MgCast alloy with silicon and magnesium航空宇宙、自動車
AlSi7MgModerate strength alloy with Si, MgIndustrial machines
6061Medium strength wrought alloy with Mg, SiCustom brackets, fixtures
5XXX series5% magnesium for strengthTooling, marine
Pure aluminumUnalloyed 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MgSiフェムン
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 μmControls part resolution
見かけ密度1.2-1.8 g/ccAffects final part density
流量20-30 s/50gIndicates 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 μmASTM B214
見かけ密度> 0.80 g/ccASTM B212
ホール流量<30秒/50gASTM B213
酸化物含有量< 3%ASTM B237
Mg, Si compositionAlloy limitsASTM B937
不純物Fe, Cu, Mn limitsASTM 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
  • Reduced material waste
  • 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
Pure aluminum$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)2.74.58.0
引張強さ (MPa)230-520900-1200500-1000
熱伝導率 (W/mK)120-1807-1615-30
Electrical conductivity (MS/m)35-382.41.5
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.

3D印刷用アルミニウムパウダー

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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