Aluminum in Stamping
We offer customization of aluminum stamping 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.
Aluminum has become one of the most important materials in the metal stamping industry, ranking second only to steel in global usage. The stamping process employs dies and presses to transform sheet metal into various components through plastic deformation; aluminum’s unique balance of performance, weight, and manufacturability makes it an ideal material for this process. Aluminum offers a range of beneficial properties: it is an excellent electrical conductor, making it highly suitable for electronics and electrical applications; its non-toxic and non-contaminating nature makes it invaluable in the food, medical, and packaging industries; and its non-magnetic and non-sparking characteristics enhance safety in environments containing flammable materials or sensitive electronic equipment. Additionally, aluminum effectively reflects light and heat, making it suitable for manufacturing lighting fixtures, heat sinks, and solar reflectors. Consequently, aluminum stamping parts are now widely used across virtually all major sectors, including automotive, aerospace, electronics, marine, construction, and medical equipment.
Of course, despite its many advantages, aluminum's specific properties must be carefully considered in stamping applications. Compared to steel, aluminum has lower yield strength and a lower modulus of elasticity; designers often compensate for this by increasing part thickness—yet, because aluminum’s density is only one-third that of steel, significant weight reduction is still achievable even with increased thickness. Surface galling (die pickup) and springback are challenges inherent to the stamping process, though they can typically be mitigated through optimized die design, proper lubrication, and rigorous process control. To address these needs, the aluminum industry has developed various alloy series (such as the 1xxx, 3xxx, 5xxx, and 6xxx series), each formulated to achieve an optimal balance of strength, formability, corrosion resistance, and other properties tailored to specific stamping applications.
The most versatile pure aluminum stamping material, commonly used in O-temper (soft) or H14 temper. It is suitable for cooling fins, nameplates, decorative covers, shallow-drawn packaging components, and simple stamped parts requiring electrical or thermal conductivity.
Like the 1060, it is one of the two most widely used 1-series pure aluminum stamping alloys. Its key characteristics include high purity, excellent ductility, minimal springback during stamping, virtually no risk of cracking, and ease of processing; however, it has very low strength and hardness, resulting in poor structural load-bearing capacity.
The high-purity grade offers superior plasticity; it is primarily used for specialized deep-drawing and complex forming applications, and is rarely used in standard sheet metal work.
A truly versatile, go-to material, commonly used in H24 (half-hard) or O (annealed/soft) tempers. It is suitable for standard bending, punching, blanking, flanging, and shallow drawing, covering 90% of typical sheet metal applications—such as equipment enclosures and cabinets, machinery housings, kitchenware, and air ducts.
A grade specifically designed for deep drawing, typically supplied in the O-temper. It offers superior deep-drawing performance compared to 3003 and is widely used for can bodies and complex drawn parts, though its usage in general sheet metal applications is slightly lower than that of 3003.
Key grades in the 5-series typically come in H32 (half-hard) or O (annealed) tempers. The H32 temper is suitable for standard bending and punching operations, while the O temper allows for medium-depth deep drawing; these are standard materials for mid-to-high-end industrial sheet metal components, electronic enclosures, and outdoor cabinets.
It offers superior formability and high surface quality, with strength slightly lower than that of 5052; it is primarily used for complex stamping of appliance exterior panels and decorative panels.
It is the only relatively common 6-series alloy grade suitable for stamping; only the fully annealed (O-temper) state is viable for this process, allowing for simple bending and shallow drawing. High strength can be achieved through post-stamping T6 heat treatment, making it frequently used for specialized sheet metal components that require specific final structural strength.
Aluminum stamping 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 stamping.
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 stamping. However, there are some downsides of aluminum parts machining to consider before choosing it for any project.
pros
cons
Aluminum stamping is widely used in industrial equipment, electronics, automotive, smart home products, communication devices, machinery, and custom non-standard components. With stamping, powder coating, automated spraying, anodizing support, and strict quality inspection, Longwang helps customers produce reliable aluminum stamping 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.
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