Aluminum in Sheet Metals
We offer customization of aluminum sheet metal fabrication parts, with a wide range of aluminum materials available to suit various surface treatment processes and meet the requirements for high-quality prototypes and production parts.
During the sheet metal fabrication process, raw aluminum sheets are progressively shaped through operations such as cutting, bending, and stamping to achieve the desired design specifications. This process is precisely controlled by specialized machinery, enabling the production of virtually any custom 3D sheet metal component.
Aluminum alloys offer excellent formability and ductility, along with a superior strength-to-weight ratio. They also feature high thermal and electrical conductivity, low density, and natural corrosion resistance—properties that can be further enhanced through anodizing to improve both protective performance and aesthetic appeal. Moreover, the combination of light weight and high strength makes aluminum alloys an ideal choice for sheet metal applications across various sectors, including 3C electronics, medical equipment, and new energy technology.
Consequently, custom aluminum alloy fabrication is an excellent solution for applications requiring high precision and versatility.
A medium-strength aluminum alloy recognized for its balanced stamping performance, excellent fatigue resistance, and reliable corrosion resistance. It is ideal for outdoor sheet metal chassis, automotive body panels, marine fittings, and stamped structural brackets.
It is lower in cost than 5052 alloy and serves as a cost-effective, rust-resistant aluminum solution; it offers good ductility, minimal springback during bending, ease of forming, and excellent weldability. However, its strength is relatively low, making it suitable only for non-load-bearing, light-duty components such as simple electrical enclosures, equipment dust covers, and standard decorative panels.
This material is heat-treatable for enhanced strength, offering significantly higher strength and better rigidity than the 5 series; it yields a uniform, high-quality finish after anodizing, making it ideal for premium aesthetic components. Factories typically perform bending and stamping operations in the O-temper state before applying heat treatment to achieve T6-level strength; the T6 temper is reserved for structural panels requiring only simple punching or shallow bending.
With an aluminum purity of ≥99%, it offers excellent electrical and thermal conductivity and exceptional ductility, resisting cracking during deep drawing and forming; however, due to its low strength, it is not used for load-bearing structures and is classified as a functional sheet metal material.
It offers higher strength than 5052, along with excellent fatigue resistance and weldability, as well as stable formability for thick plates. Factories frequently use it for heavy-duty sheet metal structures—such as heavy equipment frames, load-bearing frameworks for energy storage cabinets, and bent thick-plate components—making it an upgraded alternative to 5052.
Aluminum sheet metal parts often require surface finishing to improve corrosion resistance, appearance, durability, and product performance. At Longwang, we provide multiple finishing options for aluminum parts after laser cutting, CNC punching, bending, stamping, welding, and assembly.
As Machined
Standard finish, surface roughness of 3.2 μm (126 μin), removes sharp edges and deburs parts cleanly.
Tumbling
Utilizes barrel or vibratory processes with abrasives to smooth and polish the surface of parts.
Heat Treatment
Alters the physical (and sometimes chemical) properties of a material to achieve desired mechanical properties.
Alodine
Chemical treatment process providing corrosion protection and surface preparation for paint adhesion.
Anodizing
Electrochemical process that forms a durable, corrosion-resistant oxide layer on the surface of metals.
Electroplating
Electroplating is an electrochemical process that deposits a protective metal layer onto a conductive surface.
Polishing
Polishing smooths a surface to improve shine, reduce roughness, and enhance appearance.
Powder Coating
Powder coating provides a durable, scratch-resistant finish with excellent corrosion protection and a clean, attractive appearance.
Brushed
Brushed finish creates a refined linear texture with a modern, metallic look.
Aluminum offers many benefits that make it suitable for sheet metal fabrication. However, there are some downsides of aluminum parts machining to consider before choosing it for any project.
pros
cons
Aluminum sheet metal fabrication is widely used in industrial equipment, electronics, automotive, smart home products, communication devices, machinery, and custom non-standard components. With laser cutting, CNC punching, bending, stamping, welding, powder coating, automated spraying, assembly support, and strict quality inspection, Longwang helps customers produce reliable steel sheet metal parts from prototype to batch production.
Your Comprehensive Metal Manufacturing Solution Provider
We offer both rapid prototyping and large-scale production, utilizing over 700 machines and experienced engineers to deliver high quality CNC parts with minimal compromise on lead time or consistency.
For precision CNC machining, we hold tolerances as tight as ±0.01mm. For sheet metal fabrication, our standard tolerance is ±0.1mm, depending on design complexity.
We process a wide range of metals including Aluminum (6061, 7075), Stainless Steel (304, 316), Titanium, Copper, Brass, and various specialty alloys.
Yes. We offer fast-turnaround prototyping to help you verify designs and functional requirements before scaling to high-volume manufacturing.
Yes, we are IATF 16949 certified for the automotive industry, along with ISO 9001 and ISO 14001 certifications to ensure global quality standards.
Prototypes usually take 3-7 days. Mass production lead times vary from 2-4 weeks depending on the project scale and secondary finishing requirements.
Yes. We have an integrated eco-friendly coating line and offer anodizing, plating, sandblasting, and laser engraving as part of our one-stop service.
Simply upload your CAD drawings (STEP, IGS, or PDF) via our contact form. Our engineers will provide a technical assessment and quote within 24 hours.
Sheet Metal Fabrication Resources
Guides, design tips, and best practices for efficient, high-quality sheet metal fabrication.
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Guide to Sheet Metal Finishing Techniques: Applications, Pros & Cons
2026-07-17This guide explores common sheet metal finishing techniques, outlining their applications, advantages, and limitations to help you select the most suitable process for performance, durability, and appearance requirements.
Why Surface Treatment Matters in Sheet Metal Fabrication
2026-07-07Surface treatment plays a key role in improving the durability, corrosion resistance, and appearance of sheet metal parts. It enhances performance, extends service life, and meets functional and aesthetic requirements across various industries.
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