Factors That Can Impact Aluminum CNC Milling

Posted by Brad Roberson in CNC Milling Service, Aluminum Machining and Materials on Apr 23, 2024.

Aluminum CNC milling is a highly precise and efficient manufacturing process that relies on CNC machines to shape parts to your exact needs and specifications. At Roberson Machine Company, we know firsthand that the journey from raw material to finished part is influenced by a multitude of factors that require careful attention and optimization.

Our CNC milling expertise allows us to avoid the challenges many other manufacturers face and get you the exact parts your company needs, precisely when you need them. We have over 20 years of experience providing our customers with industry-leading manufacturing solutions.

If you’re looking for a partner for aluminum parts, call Roberson Machine Company as soon as possible at 573-646-3996 or contact us online to get a quote on your next project. Here, we’ll delve into some critical factors that impact aluminum milling and explore how our expert machinists achieve optimal results.

Factors That Can Impact Aluminum CNC Milling and Why Roberson Machine Company is the Go-To Choice

Several factors influence the outcome and efficiency of the CNC milling process for aluminum, including:

Material Grade & Properties

Different grades of aluminum exhibit a variety of characteristics like hardness, machinability, strength-to-weight ratio, and thermal conductivity. Having intricate knowledge of the specific properties of the aluminum alloy being machined is vital for choosing appropriate cutting tools, feeds, and speeds.

If you have any questions or concerns about selecting the best type of aluminum to use for your parts, our team is available to help. Give us a call at 573-646-3996 or reach out to us online for options or for a free quote.

Clamping Rigidity

Clamping is an essential element of aluminum CNC milling because it holds the workpiece in place in order for our machines to go to work on your parts. Our rigid clamping of the workpiece enables a smooth CNC milling process because it:

Tool Selection & Geometry

The choice of cutting tools, including end mills, drills, and inserts, is crucial in aluminum CNC milling. Our tools have different geometries, too, such as rake angle, helix angle, corner radius, and more. Whether the best machine option for your aluminum parts is our 3, 4, or 5 axis machining, each type has its own specific tooling geometry associated with it.

Machining Parameters

Machine and cutting parameters like spindle speed, feed rate, and depth of cut substantially impact the efficiency and quality of CNC milling aluminum parts. Optimizing these parameters based on the specific grade of aluminum, tooling, and part geometry is essential for achieving optimal subtractive manufacturing, surface finish, and tool life.

Coolant & Lubrication

The CNC milling machining process produces a lot of heat, particularly on larger production runs. Without coolant and lubrication, this heat can create tool wear and part inconsistencies. Depending on the machine, we use both flood coolant and mist coolant systems to improve chip evacuation and prevent aluminum from sticking to our cutting tools.

Our Value-Added Services

Our top-tier value-added services, including anodizing, heat treating, powder coating, bead blasting, laser engraving on anodized parts, and more, can enhance part aesthetics and functionality. These services are ideal for both large and small production runs, and serve as a cost-effective alternative to shipping your finished components elsewhere. Our shop is centrally located for fast delivery times and access to major markets.

Factors That Can Impact Aluminum CNC Milling | Aluminum CNC Machining | Roberson Machine Company

Just the Manufacturer You Need For Your the Aluminum CNC Milling Parts | Roberson Machine Company

Armed with a deep understanding of the above factors, we are able to machine high-quality, precise, and cost-effective aluminum components for your company. No matter your industry or application, we have the capabilities to tailor CNC milling solutions solely to your aluminum part needs.

Give us a call right away at 573-646-3996 or contact us online to get a free quote.


Brad Roberson / 

Brad Roberson is one of the owners of Roberson Machine Company. Please feel free to contact us to receive a quote or ask any questions you may have.

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