Aluminum Fabrication · Miami Gardens, Florida

Aluminum Fabrication

5052, 6061, 3003 and 2024 aluminum cut, formed, welded and finished by one shop. Fiber lasers cut aluminum to 5/8 in., our welders are qualified to AWS D1.2, and parts ship anodized, chem filmed or powder coated.

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5052 · 6061 · 3003 · 2024|Laser Cut to 5/8 in.|AWS D1.2 Welding|Anodize · Chem Film · Powder|AS9100 Rev D

Overview

Aluminum Sheet Metal Fabrication Done Right

Aluminum is light, corrosion resistant and easy to finish, which is why so many enclosures, chassis and brackets are made from it. It is also reflective under a laser, soft enough to scratch, and quick to crack if the wrong alloy is bent too tight. Our aluminum fabrication is built on fiber lasers that handle the reflectivity, forming experience with each alloy and temper, and welders qualified specifically on aluminum.

All of it runs under our AS9100 Rev D and ISO 9001:2015 quality system. For cutting detail see aluminum laser cutting.

Alloys

Aluminum Alloys We Fabricate

Alloy	Where It Is Used
5052-H32	The sheet metal workhorse. Forms well, welds well, resists corrosion. Enclosures, chassis, panels, marine parts.
6061-T6	Stronger and machinable. Brackets, plates, frames and machined features. Needs larger bend radii than 5052.
3003	Very formable general-purpose alloy for covers, ducting and deep forms.
2024	High-strength aerospace alloy for aircraft brackets and skins.

Not sure which to call out? Read 5052 vs 6061 aluminum for sheet metal. The short version: if the part has bends, start with 5052.

Processes

How We Fabricate Aluminum

Laser Cutting

Five amada lasers (one ventis 4 kw fiber, three ensis 3 kw fiber and one co2) on 5 x 10 ft tables, with nitrogen from three on-site generators for clean, dross-free edges. Aluminum to 5/8 in., ±0.005 in.

Punching and Forming

Amada AE 2610NT turret punch to 1/4 in. aluminum for louvers, embosses and hole patterns; nine Amada press brakes to 240 tons and 14 ft; plate rollers to 7 ft.

Welding

TIG and MIG aluminum welding with a qualified AWS D1.2 procedure on 6061-T6 (ER4043) and GTAW qualifications on 5052, plus fiber laser welding for thin sheet with low distortion. Welding services.

Machining

Milled pockets, tapped holes, countersinks and counterbores on the Mazak machining center. CNC machining.

Hardware

Self-clinching nuts, studs and standoffs for aluminum installed on four Haeger presses. Hardware insertion.

Finishing

Wet deburring, grained or blasted surfaces, anodize, chem film (chromate conversion), powder coat, paint and laser marking. Finishing.

What We Build

Aluminum Parts and Assemblies

Enclosures and chassis: electronics housings, rackmount chassis, covers and front panels. See chassis fabrication.
Robotics and automation: frames, guards, mounts and sensor brackets. See robotics.
Aerospace and defense: brackets, panels and welded assemblies with AS9102 first articles. See aerospace.
Lighting and architectural: fixture housings, reflectors, panels and trim. See lighting.
Marine and transportation: lightweight corrosion-resistant brackets, boxes and panels.

Design Notes

Design Tips for Aluminum Parts

Match alloy to forming. 6061-T6 cracks on tight bends; use 5052-H32 for formed parts or open up the radius.
Plan the finish. Anodize shows every scratch and weld; chem film is conductive; powder coat adds thickness to hole sizes and mating faces.
Welded 6061 loses strength in the heat-affected zone. If the weld is structural, tell us the load path.
Grain direction matters for cosmetic anodized faces and for bends parallel to the grain.

More in the DFM guide and the finish comparison.

Straight Talk

Where MJM Is Not the Right Fit

We do not make extrusions or castings, and we are not a high-volume machine shop for parts hogged from billet. Aluminum plate over 5/8 in. is beyond our lasers.

We are the right shop for aluminum sheet and plate parts that need cutting, forming, welding, hardware and a finished surface, in quantities from one to production.

FAQ

Aluminum Fabrication Questions

What aluminum alloys does MJM fabricate?

MJM fabricates 5052, 6061, 3003 and 2024 aluminum sheet and plate, with US-sourced material and mill certifications.

How thick can MJM laser cut aluminum?

Up to 5/8 in. (0.625 in.) on Amada fiber lasers with nitrogen assist, at a typical tolerance of ±0.005 in.

Is MJM qualified to weld aluminum?

Yes. MJM welds aluminum to AWS D1.2, the Structural Welding Code for Aluminum, with a qualified GMAW procedure on 6061-T6 and welder qualifications witnessed by an AWS Certified Welding Inspector. Aerospace aluminum welding is performed to AWS D17.1.

Should I use 5052 or 6061 aluminum for a sheet metal part?

For parts with bends, 5052-H32 is usually the better choice because it forms without cracking. 6061-T6 is stronger and machines well but needs larger bend radii.

Can aluminum parts be anodized or powder coated?

Yes. MJM delivers aluminum parts anodized, chem filmed, powder coated or painted, with hardware installed and laser marking if required.

Is there a minimum order for aluminum fabrication?

No. MJM builds one-piece prototypes through production runs and returns quotes in 24 to 48 hours.

Aluminum Laser Cutting: grades, thickness and edge quality.
5052 vs 6061 Aluminum: which alloy to call out for a formed part.
Welding Services: fiber laser, TIG, MIG and spot welding to AWS D17.1, D1.1, D1.2 and D9.1M.
Metal Finishing and Powder Coating: powder coat, anodize, chem film, passivation and plating on one PO.
Stainless Steel Fabrication: 304 and 316 cut, formed, welded and finished.
Custom Metal Fabrication: the full shop under one roof.
Sheet Metal Materials: every metal and gauge we process.

Send Us Your Aluminum Drawings

STEP files and PDF drawings to sales@mjmmfg.com or (305) 620-2020. Quotes in 24 to 48 hours.

Request a Quote Contact Us

Ronald Travieso

Working with MJM Manufacturing has been one of the best vendor experiences I've had. The parts matched my samples perfectly, and even the packing was done with real care — clean, organized, and professional. Of all the vendors I've worked with, they're by far the most organized and quality-focused. Great communication from start to finish. Highly recommend them for custom fabrication work.

Robert Cooler

MJM is wonderful to deal with. They have worked diligently and have produced my projects thus far to the highest standards.

Israel Schechter

I have been ordering parts from MJM Manufacturing for many years, and they have consistently exceeded my expectations. Their quality, professionalism, and attention to detail are outstanding. Every order is handled efficiently, delivered on time, and manufactured to the highest standards. The team at MJM is knowledgeable, responsive, and always willing to go the extra mile to ensure customer satisfaction. It is rare to find a company that maintains such a high level of consistency over many years. I highly recommend MJM Manufacturing to anyone looking for a reliable partner for complex, precision sheet metal parts and assemblies. I. Schechter, Former President of GBI Intralogistics Solutions, Current Owner/President of IPSTEC, Aventura, Florida

Richard Havass

As a customer, I have been working with MJM Manufacturing for approximately 35 years. The expertise of Mike Mijares and his team at MJM is top notch. Whenever I have a new part design, I typically review the design of the part with MJM to ensure that I am using the most cost-efficient manufacturing process to produce the parts as economically as possible. There was a part that we had made years ago using a progressive die to emboss a curved channel into a sheet metal part. The cost of the progressive die for this part was $55K. The redesign of the part from MJM consisted of $1200 in tooling to make the new part profile. Parts came out great and saved tens of thousands in tooling. Lastly, whether MJM produces a prototype or a production run, the appearance of the part is pristine, no tool marks or scratches on any part. In the 35 years that I have worked with Mike and his team, I have found them to be one big family. Mike’s love for his business is refreshing! You rarely see a person that is so charged to get up for work every day! Richard Havass Mechanical Engineering Manager JCI-Sensormatic

Sulen Ojeda Fuentes

Esta fábrica está llena de muy buenos profesionales son una gran familia trabajadores de años con muy buena experiencia .lo recomiendo porque son un gran equipo. Y realizan muy buen trabajo.