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Aluminum Processing: From Extrusion to CNC Machining

2025-10-17 14 min read

From extrusion to heat treatment to CNC machining — a complete overview of the aluminum profile processing flow.

Aluminum is a universally beloved metal material, boasting excellent processing properties and a relatively low price, making it highly suitable for machining. The processing of aluminum profiles from raw material to finished product involves more than simple cutting or forming; rather, it involves a comprehensive process involving extrusion, heat treatment, surface treatment, and CNC machining.

This article will provide a detailed overview of the aluminum profile processing process, providing a comprehensive understanding of the professional aluminum processing process and helping buyers make informed decisions when sourcing and customizing aluminum profiles.

What Is Aluminum Fabrication

Aluminum fabrication is the key step in transforming raw aluminum or aluminum alloy materials into a variety of usable products, such as familiar aluminum trim, door and window profiles, and automotive parts.

Aluminum processing factory

What is aluminum extrusion process

Among the many excellent processing methods, aluminum extrusion is the core means of maximizing aluminum's processing properties.

If you are looking for a reliable supplier to handle your specific extrusion needs, we provide comprehensive aluminum extrusion machining services that cover everything from profile design to final extrusion.

What is heat treatment?

After aluminum extrusion is formed, the material's hardness may not meet project requirements. To enhance the aluminum profile's mechanical properties, stability, and durability, it is typically subjected to heat treatment and aging.

Aluminum extrusion process

What is CNC machining

CNC machining, or Computer Numerical Control (CNC), refers to the use of computer programs to control machine tools for the precise machining of various workpieces.

Core Methods of CNC Machining
  1. Milling: Using a rotating milling cutter to cut the surface or interior of aluminum parts.
  2. Drilling: Using a drill bit to create a circular hole of a specific diameter and depth in aluminum parts.
  3. Turning: The aluminum part is mounted on the machine tool spindle and rotated at high speed.
  4. Tapping: Internal threads are created within a drilled aluminum hole.
Aluminum profile CNC machining

What is aluminum profile surface treatment

Aluminum profile surface treatment refers to the process of treating the aluminum profile's surface through physical, chemical, or electrochemical means after it has been extruded and formed.

Assembly, Inspection and Quality Control

After completing the aluminum processing, we also need to inspect and assemble to see if it meets the export standards.

Why choose us as your right aluminum processing partner

Shenghai Aluminum is a leading aluminum profile supplier specializing in integrated extrusion, deep processing, and surface treatment services.

Senior Engineering Team
SH-ALUMINUM
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