DEK specializes in precision aluminum machining across all major alloy series. Our advanced 3-, 4-, and 5-axis CNC equipment delivers tight tolerances of ±0.005mm on complex geometries — making us the preferred partner for aerospace, medical, and high-tech industries.
Aluminum Grades
Tolerance Capability
Prototype Lead Time
Aluminum is the third-most abundant element in Earth’s crust, comprising roughly 8% of its weight. As a lightweight, non-ferrous metal extracted from bauxite ore, it became commercially viable after the development of the Hall–Héroult process in 1886. Today, it remains the most widely machined non-ferrous metal in the world.
At DEK, we machine all major aluminum alloy families — from the high-strength 2xxx and 7xxx aerospace series to the versatile 5xxx and 6xxx general-purpose alloys. Our CNC milling machines, CNC lathes, and precision grinding equipment handle everything from simple aluminum cutting to multi-axis complex geometries. Combined with our certified quality processes and in-house anodizing capabilities, we deliver production-ready aluminum parts that meet the strictest industry standards.
Lightweight with high strength-to-weight ratio
Natural oxide layer provides corrosion resistance
Excellent thermal & electrical conductivity
100% recyclable without property loss
The combination of mechanical, thermal, and chemical properties makes aluminum alloys exceptionally versatile for precision-machined components.
Approximately one-third the density of steel, enabling significant weight savings in structural and aerospace applications without sacrificing performance.
Ranges widely across alloy series. 7075-T6 achieves up to 570 MPa, rivaling some steels while remaining far lighter.
Excellent heat dissipation capability makes aluminum ideal for heat sinks, radiators, and thermal management components.
Outstanding electrical conductivity at roughly 61% of copper's, widely used in power transmission lines, bus bars, and electronic enclosures.
Forms a self-healing aluminum oxide layer that protects against environmental degradation. Can be further enhanced through anodizing.
Aluminum machines cleanly at high speeds with excellent chip formation, reducing cycle times and tooling wear compared to ferrous metals.
Tightest achievable tolerance
Best surface finish available
Tightest achievable tolerance
Best surface finish available
Aluminum's superior machinability enables high-speed cutting, tight tolerances, and excellent surface finishes — when handled with the right expertise.
Aluminum allows spindle speeds 3–5× higher than steel, dramatically reducing cycle times. We optimize feed rates per alloy to maximize efficiency while maintaining dimensional accuracy.
Softer alloys like 6061 can form built-up edge on tooling. We use polished carbide tools, appropriate coatings, and optimized coolant strategies to ensure clean, burr-free cuts.
Despite aluminum's excellent thermal conductivity, thin-walled features can distort under heat. Our fixture design and adaptive machining strategies maintain dimensional stability throughout the cut.
We routinely achieve Ra 0.8μm or better on aluminum parts. For optical or cosmetic applications, mirror-polished finishes down to Ra 0.2μm are available.
We stock and machine 12+ aluminum alloys across all major series. Each grade is selected for specific performance characteristics to match your application requirements.
From spacecraft housings to consumer electronics, precision-machined aluminum components serve critical roles across virtually every industry.
Enhance the appearance, durability, and functional performance of your aluminum parts with our in-house and partner finishing capabilities.
Not seeing the option you’re looking for? Have our experts assist you!
Common questions from aerospace procurement and engineering teams.
Get started with a stable process and controlled quality. Let's discuss your project.
