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Aluminium

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Custom aluminum machined parts from prototype to production

Aluminum is highly machinable and relatively inexpensive, making it perfect for CNC machining and suitable for many applications. Contact our material experts to help select the grade that is right for you. ISO 9001:2015, ISO 13485, and AS9100D certified. ITAR registered.

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Aluminum, a non-ferrous, soft, non-magnetic, and ductile metal, is frequently used in various applications due to its affordability, non-toxicity, recyclability, and machinability. It can be alloyed with elements like magnesium, copper, and manganese to form different alloys with enhanced properties. 

The process of CNC machining, which involves the use of computer software and compatible equipment to guide machine tools across aluminum surfaces, is commonly employed to create high-precision machined parts from this versatile metal. This technique allows manufacturers to produce a variety of precision aluminum parts that meet the specific requirements of their applications. 

In this process, CNC routers are used to shape the aluminum material into the desired shapes and dimensions. Aluminum naturally resists corrosion in various atmospheric conditions, but anodizing the machined aluminum parts can further enhance this property.

Among the aluminum alloys, 6061 and 7075 are most commonly used for CNC machining. The 6061 aluminum alloy is versatile, easy to machine, weld, and form, and it has excellent corrosion resistance, making it very durable. On the other hand, the 7075 aluminum alloy, known for its high strength, is widely used in industries such as aerospace, defense, and automotive.

Material properties of Aluminum grades that Tamshell Precision Machining works with:

DensityUltimate Tensile StrengthYield Tensile StrengthElongation at BreakModulus of ElasticityHardness (Brinell)Thermal ConductivityMelting Point
2000 Series Aluminum2.79 g/cc405 MPa309 MPa8.85%76.3 GPa114139 W/m-K573 °C
5000 Series Aluminum2.68 g/cc193 MPa89.6 MPa25%70.3 GPa47138 W/m-K607 – 649 °C
6000 Series Aluminum2.7 g/cc241 MPa214 MPa12%68.9 GPa73200 W/m-K616 – 654 °C
7000 Series Aluminum2.83 g/cc524 MPa469 MPa11%71.7 GPa140157 W/m-K488 – 629 °C
Note: these values are averages and can vary based on specific alloys within each series. Also, these properties can be further modified through heat treatment and other processing methods.

FAQ

Machining Frequently Asked Questions

We know every project is unique and that questions can arise when it comes to selecting the right partner for your manufacturing needs. Our team specializes in delivering precise, reliable machining solutions tailored to the exact specifications of each client. Below, we’ve gathered answers to some of the most commonly asked questions. If you don’t see your question here, please feel free to reach out – we’re always ready to assist with any additional information you need.

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What parts and component types does Tamshell machine?

Tamshell specializes in producing a diverse array of custom precision machined components tailored to our customers’ specifications. Utilizing modern, advanced 4th & 5th axis CNC mills, CNC Swiss and Swiss-screw, and CNC turning machines, we achieve tight tolerances with nearly any machinable plastic or metal material.

What’s on the shop floor?

Our primary machining department utilizes state-of-the-art CNC machining equipment to ensure precision and quality. The secondary department complements this with a variety of conventional tools and instruments. All our machinery is backed by our specialized in-house tooling department, ensuring seamless support and efficiency.

What materials does Tamshell machine and specialize in?

Our machine shop excels in precision machining of a wide range of materials, with a particular expertise in plastics. We also specialize in machining aluminum, brass, bronze, and stainless steel, ensuring high-quality results for diverse applications. Our advanced equipment and skilled team enable us to meet stringent tolerances and deliver custom components tailored to our clients’ specifications. Whether working with plastics or metals, we are committed to providing exceptional craftsmanship and reliable service.

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What tolerances can Tamshell hold?

We excel in close tolerance machining, holding tolerances as tight as +/- 0.0001″. Our capabilities include advanced 4th- and 5th-axis machining, complemented by a rigorous three-stage inspection process. This ensures burr-free parts and consistently exceeds the highest-quality finish requirements.

Does Tamshell offer manufacturing, material and other advice during the design phase of the project?

In short: yes, our team brings extensive expertise in the manufacturability of components and assemblies. As specialists in plastics machining, our in-house material experts will guide you in selecting the most optimal materials for your application, considering all usage factors.
Our skilled machinists are also proficient in working with various materials, including metals. We can review your 3D models and drawings, recommending any necessary changes before production begins.