Archive: May 2023

Why Choose Aluminum Over Other CNC Metals

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CNC machining has become a widely used and efficient method to produce intricate metal parts with high precision and accuracy. When selecting the material for CNC machining, aluminum often emerges as a preferred choice. This is mainly because it is lightweight, durable, and versatile, combining desirable properties and making it suitable for various machining applications.

This blog will explore the benefits of making aluminum your go-to metal and why it is popular among manufacturers. We will also list several grades and alloys ideal for CNC machining.

Advantages of Aluminum vs. Other CNC Metals

Aluminum is a versatile metal that offers numerous advantages over other metals, such as steel, titanium, copper, and bronze. Here are the key advantages of utilizing this material, highlighting its superior properties and how it can benefit a wide range of applications:

Lightweight Nature

Aluminum is three times lighter than steel, making it a popular choice in applications where weight is critical. Its low density also means it can be used in large quantities without adding extra weight to the product. For example, lightweight materials are essential in the automotive and aerospace industries to increase fuel efficiency and reduce emissions.

High Strength-to-Weight Ratio

Despite its lightweight nature, aluminum boasts a higher strength-to-weight ratio than most CNC metals, including steel and copper. This means aluminum can bear immense weight and stress without adding bulk to the product. As a result, it is an excellent solution for aeronautical applications requiring strength and durability without sacrificing weight.

Excellent Machinability

Aluminum is one of the easiest metals to machine, making it a popular choice in manufacturing. Its machinability is due to its softness and low melting point, allowing it to be easily cut, drilled, and shaped with minimal effort. This makes it an ideal option for creating intricate and complex parts with high precision and accuracy.

Exceptional Corrosion Resistance

Compared to other metals, aluminum is naturally corrosion-resistant due to its ability to form a protective oxide layer on its surface. This layer protects the metal from corrosion caused by moisture, chemicals, and other environmental factors. Its corrosion resistance can be further enhanced through various treatments, such as anodizing or painting.

High Thermal Conductivity

Thermal conductivity is the ability of a material to transfer heat, and aluminum’s high conductivity allows it to dissipate heat quickly and efficiently. This makes it ideal for applications needing effective heat transfer, such as heat sinks, heat exchangers, and cooling systems. Furthermore, the high thermal conductivity of aluminum makes it easier to weld or solder, reducing the need for additional materials.

Best Aluminum Grades and Alloys for CNC Machining

Although aluminum is a popular material for CNC machining, not all are suitable for different applications than others. The following are some of the best grades and alloys to consider:

  • 6061:This is one of the most popular and versatile alloys for CNC machining due to its excellent strength, weldability, and corrosion resistance. It is widely used in automotive parts, structural components, and consumer products.
  • 7075:This high-strength aluminum alloy is ideal for machining applications requiring superior strength. It is commonly used in aerospace, military, and high-stress applications where strength and toughness are critical.
  • 2024: This is perfect for CNC machining projects requiring a good strength-to-weight ratio and high fatigue resistance. It is often employed in aerospace, automotive, and structural applications.
  • 5052:This versatile aluminum alloy is well-suited for applications needing good formability, weldability, and corrosion resistance. It is popular in sheet metal applications, such as automotive parts, marine components, and household appliances.
  • 5083:This marine-grade alloy offers excellent corrosion resistance, high strength, and weldability. It is used in marine applications such as boat hulls and decks due to its ability to withstand saltwater corrosion.

Richardson Metals: Your Trusted Partner for Aluminum Machining Services

At Richardson Metals, we offer you the flexibility and capability to receive finished aluminum parts in-house with our state-of-the-art CNC machining centers! Our machining capabilities enable us to reduce the required setups, providing you with lower-cost parts and faster delivery times.

Contact us for more information, or request a quote today!

Understanding the Different Types of Aluminum Enclosures

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Aluminum offers numerous advantages; it is lightweight, durable, corrosion-resistant, and has excellent heat dissipation properties. This makes it an ideal choice for a wide range of applications. For example, aluminum enclosures are versatile options for housing various electronic components. These protective, box-like structures are available in diverse shapes, sizes, and materials. Thus, they can accommodate multiple applications, purposes, environmental conditions, design preferences, and budgets.

Selecting the correct type of aluminum enclosure is essential for ensuring the longevity and functionality of your electronic devices. This blog will explore aluminum enclosures, their different types, unique features, and applications.

1. Extruded

Extruded enclosures are produced by pushing aluminum through a die to obtain a precise shape and profile and are ideal for components with consistent dimensions. Their accurate construction and sleek design make them well-suited for applications such as linear power supplies, amplifiers, and tight control units.

2. Cast

Made using casting techniques like die or sand casting, these enclosures offer great strength and durability. Their capacity to handle complex shapes and designs renders them perfect for demanding applications and harsh environments where robust protection is essential. As a result, the impressive resilience of this enclosure has made them popular in industries that require dependable performance and long-lasting solutions.

3. Sheet Metal

Metal enclosures are formed by bending and shaping to achieve the desired design from thin aluminum sheets. They are preferred for their lightweight nature, affordability, and ease of customization.

4. Machined

Created using sophisticated CNC machining or milling techniques, machined enclosures can be tailored to meet exact dimensions and specifications. This type of enclosure is suitable for applications requiring strict tolerances and exceptional precision. These enclosures provide reliable performance in various industries and are popular for projects requiring high accuracy and durability.

5. Welded

These enclosures consist of aluminum parts expertly fused through welding and boast a sturdy and long-lasting structure. They are often the go-to choice for applications that require enhanced strength and rigidity. With their remarkable durability, welded enclosures provide dependable protection and support across various projects.

6. Enclosures With Integrated Heat Sinks

Skillfully designed for efficient thermal management, these enclosures with integrated heat sinks feature built-in heat dissipation capabilities to manage the heat produced by electronic components. This maintains a stable temperature within the enclosure, promoting optimal performance and extended lifespan.

7. Modular

Composed of adjustable and swappable segments, these enclosures provide remarkable versatility in terms of customization. Modular enclosures are ideally suited for projects with dynamic requirements or those anticipating future growth, ensuring seamless adaptability and scalability as needed.

8. Waterproof

Waterproof aluminum enclosures deliver exceptional protection against moisture and water ingress. They are designed to withstand harsh outdoor or damp environments, ensuring the safety and longevity of sensitive electronic components.

Waterproof enclosures robust construction also provides a reliable barrier against water damage and offers resistance to corrosion and other environmental factors. As a result, they are an excellent choice for projects requiring durable and secure housing solutions in challenging conditions.

Richardson Metals: Your Aluminum Enclosure Specialist

Are you ready to take your electronic device protection to the next level with the ideal aluminum enclosure solution? Look no further than Richardson Metals! Our team of seasoned experts is dedicated to helping you find the perfect enclosure for your specific needs and applications.

Contact us to discuss your project requirements and explore our extensive range of premium aluminum enclosures. You may also request a quote to kick-start your collaboration with industry-leading professionals!

How To Get Your Custom Aluminum Extrusions Right

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Aluminum extrusions are highly versatile and offer numerous advantages over traditional metalworking techniques. They involve pushing or pulling an aluminum billet or log through a die to create a specific shape or profile. The extruded aluminum can then be cut to any desired length and processed through various finishing options.

Custom aluminum extrusions allow manufacturers to create unique and complex shapes and profiles that meet their needs. As a result, they are used in a wide range of industries, including construction, automotive, aerospace, and electronics.

This article will provide a step-by-step guide on how to get your custom aluminum extrusions right.

Step 1: Identify Your Design Requirements

Before you start the process, you need to identify the design requirements for your custom aluminum extrusions. This includes the dimensions, shapes, and any special features required for your project. During this phase, it’s important to work closely with your engineering team to ensure that your design meets the specific requirements of your application.

Step 2: Choose the Right Aluminum Alloy

Different alloys have different properties, such as strength, corrosion resistance, and thermal conductivity. Choose an alloy that meets your project’s demands, and consider factors such as the intended application, expected loads, and desired lifespan.

Step 3: Select the Right Extrusion Manufacturer

Look for a manufacturer with a proven track record of delivering high-quality custom extrusions. You may survey the company expertise, production capabilities, and quality control processes.

Step 4: Work With the Manufacturer on Tooling Design

A well-designed tooling can help reduce lead times, minimize waste, and improve the overall quality of the extruded profiles. Thus, make sure to work closely with the manufacturer on the tooling design. Consider also the complexity of the profile and the desired production volume.

Step 5: Understand the Extrusion Process

Familiarizing yourself with the extrusion process helps you understand the critical variables that can affect the quality of your components. Here are the key steps in the process:

Billet Heating

The heating process makes the aluminum more malleable, allowing it to be extruded without cracking or breaking. The exact temperature for heating the billet depends on the specific alloy used and the die’s shape.

Die Preparation

A die is a specially designed metal tool that determines the shape and size of the extruded aluminum. Therefore, it must be carefully designed to ensure that the aluminum flows evenly and that the final extrusion meets the required tolerances.


The hydraulic press applies pressure to the billet, forcing it through the die and creating the desired shape. Finally, the extruded aluminum emerges from the other side of the die and is cut to the desired length.


Cooling is essential to ensure that the aluminum retains its shape and strength. Depending on the specific alloy and the complexity of the extrusion, the cooling process can take anywhere from a few minutes to several hours.

Step 6: Finish Your Custom Aluminum Extrusions

Some common finishing options include anodizing, painting, powder coating, and others. Collaborate closely with your manufacturer to select the right finishing option based on your aesthetic and durability requirements.

Step 7: Implement Quality Control Processes

Quality control processes include testing and inspection and quality assurance initiatives. These can help identify and address defects or inconsistencies in the extruded profiles.

Choose Richardson Metals for Reliable Custom Aluminum Extrusions

Ready to get started on your custom aluminum extrusion project? Richardson Metals is the best choice! With our decades of experience and state-of-the-art facility, we can provide high-quality extrusions and processing services to meet your needs.

Contact us today to learn more about our capabilities and discuss your project requirements. You can also request a quote to get started on partnering with us.