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CNC Machining eBook

If you want to produce high-quality machined parts with a sleek appearance, it’s essential to consider some critical factors related to CNC machining.

Here, we’ve gathered some basic information and important considerations to help you achieve the desired results.

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Aluminum 3D Printing Service

Our aluminum 3D printing delivers precision, speed, and reliability from prototypes to production.

Aluminum in 3D Printing

Aluminum 3D printing is 3D printing tailored towards making 3D printed aluminum parts by harnessing the aluminum’s excellent properties like high strength-to-weight ratio and thermal conductivity.

To 3D print aluminum parts, create a 3D CAD aluminum model and sinter the aluminum powder layer-by-layer. Available 3D printing techniques include selective laser melting (SLM), electron beam melting (EBM), and laser deposition welding (LMD).

The choice of aluminum alloy can affect the quality of the 3D-printed aluminum parts. At RapidDirect, we use AlSi10Mg aluminum alloy. After printing, the printed parts have a characteristic matte gray, rough finish, and sparkle due to the presence of silicon.

Price:	$$$
Available Aluminum at RapidDirect:	Aluminium (AISi10Mg) Silver Grey
Lead Time:	< 6 days
Wall Thickness:	0.8 mm
Tolerances:	ISO2768-C
Max Part Size:	300 mm x 300 mm x 300 mm

Aluminum (AISi10Mg) Properties

Tensile Strength, Yield (MPa)	Fatigue Strength (MPa)	Elongation at Break (%)	Hardness (Brinell)	Density (g/cm³)
320-370	120-140	5-10	100-120	2.67

Pros and Cons of Aluminum 3D Printing

Aluminum offers many benefits that make it suitable for 3D printing processes. However, there are some downsides to consider before choosing it for any project.

Pros

Suitable for manufacturing strong parts with complex and intricate designs
High strength-to-weight ratio
Parts have good thermal conductivity and corrosion resistance
3D printing aluminum is additive and reduces waste
3D-printed aluminum parts are applicable in industries like aerospace and automotive that need to improve fuel efficiency and performance.

Cons

The cost of aluminum powder and the set-up cost for aluminum 3D printing is high
It is less cost-effective for low-volume production runs.
It might require additional post-processing to achieve the desired surface finish
The build size of the aluminum 3D printer can limit its size and production efficiency. You might need to print more significant 3D-printed aluminum parts in sections and assemble them. This can lead to weak points.

Applications of 3D Printed Aluminum Parts

Aluminum parts are widely used across various industries, including:

Aerospace: Brackets and heat exchangers
Automotive: Engine parts, brackets, and lightweight frames
Consumer Electronics: Housings, heat sinks, and structural components
Medical Devices: Prosthetics, surgical tools, and custom implants

FAQs

Can you 3D print aluminum?

Yes, you can 3D print aluminum using powder bed fusion technologies like Selective Laser Melting (SLM) and Direct Metal Laser Sintering (DMLS). These 3D printing processes use high-powered lasers to selectively melt and fuse aluminum powder to create a solid part layer by layer.

Can 6061 aluminum be 3D printed?

6061 aluminum has poor weldability and a high tendency to crack during printing. Hence, it is not a typical aluminum 3D printing material. Instead, the aluminum 3D printing service recommends the standard material AlSi10Mg, known for its better mechanical properties suited for 3D printing.

3D Printing Resources

CNC Machining

3D Printing vs CNC Machining: All Differences Explained

3D Printing vs CNC Machining— as a design engineer, you’ll likely face the choice that which manufacturing technique best suits...

August 31, 2025

Injection Molding

3D Printing vs Injection Molding: A Quick Comparison

Both injection molding and 3D printing have their own unique pros and cons. This can make it challenging to select...

June 2, 2025

Injection Molding

3D Printing vs Compression Molding: Which One To Choose?

Are you familiar with additive and subtractive manufacturing concepts? The Subtractive involves removing materials to achieve the desired shape, whereas...

March 8, 2024

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