Aluminum

AA7075

7075 Aluminum is a very high-strength alloy used extensively in aerospace. It is notable for its excellent monotonic strength, fatigue strength, and toughness. It is not weldable or compatible with melt-based processing, including almost all forms of additive manufacturing, such as powder bed fusion.

MELD AA7075-T73 Room Temperature Tensile Properties

Values represent averages for typical builds and are not for design purposes

Yield Strength66 ksi
Ultimate Strength73 ksi
Elongation14%

Why is MELD unique for AA7075?

MELD is unique in terms of being one of the only additive processes to work with Aluminum 7075. By avoiding melting, MELD prevents issues like hot cracking that are common in conventional welding and melt-based printing. This makes the MELD process one of the most effective additive methods for working with Al7075.

Prints using AA7075

AA6061

Aluminum 6061 is one of the first Aluminum alloys developed and continues to be one of the most commonly available alloys. AA6061 has set the standard as a medium strength, lightweight and economic material. AA6061 is most commonly used to manufacture cars, trucks and heavy equipment. AA6061 is easily weldable, has good corrosion resistance to the atmosphere and sea water, and is easily machinable. This makes it suitable for many different industries including the automotive, aircraft and marine industries.

MELD AA6061-T6 Room Temperature Tensile Properties

Values represent averages for typical builds and are not for design purposes

Yield Strength37 ksi
Ultimate Strength44 ksi
Elongation11%

Why does MELD use AA6061?

MELD’s solid state process allows us to work with Al6061 in ways that powder bed and DED systems cannot. MELD avoids melting and solidification, producing a wrought microstructure, which is typically advantageous over cast microstructures.

Prints using AA6061

Smaller version of the dragon head displayed at RAPID+TCT 2024