Custom Aluminum Parts
Custom CNC Aluminum Machining
Get competitive pricing for custom aluminum parts. We support multiple aluminum grades and additional surface finishing processes for high-standard prototypes and standard production runs.
- Lightweight
- Easy Machinability
- High Corrosion Resistance
Available Processes
Aluminum Material
Key Characteristics of Aluminum
Aluminum combines low density and good strength with easy machinability, excellent thermal conductivity, high corrosion resistance and suitability for surface treatments.
Lightweight
Aluminum has an approximate density of 2.7 g/cm³.
Good Strength
Aluminum provides good strength for machined parts.
Easy Machinability
Aluminum is easy to machine into precise and complex shapes.
Thermal Conductivity
Provides excellent thermal conductivity and heat dissipation.
Corrosion Resistance
Aluminum offers high resistance to corrosion.
Surface Treatment Ready
Suitable for a wide range of surface treatment processes.
1xxx-7xxx Aluminum Selection
Aluminum Series for CNC Machining
Compare the principal wrought-aluminum series used for CNC parts. The best choice depends on strength, corrosion exposure, conductivity, finishing and the required material condition.
| Series | Common CNC Grades | Machining Profile | Selection Strengths | Typical CNC Parts |
|---|---|---|---|---|
| 1000 Series | 105010601100 | High electrical and thermal conductivity with excellent corrosion resistance. | Bus bars, conductive plates, thermal parts and low-load electrical components. | |
| 2000 Series | 2017A2024 | High strength and useful fatigue performance for loaded structures. | Aircraft fittings, fasteners, fixtures and high-load mechanical parts. | |
| 5000 Series | 50525083 | Strong marine corrosion resistance and good weldability. | Marine plates, tanks, enclosures, brackets and welded assemblies. | |
| 6000 Series | Balanced strength, corrosion resistance, machinability and finishing response. | Housings, frames, brackets, heat sinks, fixtures and general machine parts. | ||
| 7000 Series | High strength and toughness for demanding structural components. | Aerospace structures, bulkheads, high-load fittings, shafts and precision supports. |
Grade performance varies with temper, thickness, grain direction and supplier specification. Confirm the exact alloy and condition on the drawing before production. The 3000, 4000 and 8000 series are generally selected for more specialized sheet, filler, casting or application-specific requirements.
Need a stable tooling plate? MIC-6 cast aluminum is commonly selected for jigs, fixtures, base plates and low-stress precision tooling.
Aluminum Material Guide
Common Aluminum Alloy Grades
Compare the mechanical properties and typical applications of common aluminum alloy grades used for custom parts.
6061-T6
6000 Series- Tensile Strength
- 290–320 MPa
- Yield Strength
- 240–280 MPa
- Fatigue Strength
- 90–100 MPa
- Elongation
- 8–12%
- Hardness
- 90–100 HB
- Density
- 2.70 g/cm³
Typical Applications
General structural parts, machine parts, mold base plates, automotive parts, bicycle frames and marine fittings.
6061-T5 ↗
6000 Series- Tensile Strength
- 240–260 MPa
- Yield Strength
- 145–160 MPa
- Fatigue Strength
- 80–90 MPa
- Elongation
- 8–12%
- Hardness
- 80–90 HB
- Density
- 2.70 g/cm³
Typical Applications
General structural parts, machine parts, mold base plates, automotive parts, bicycle frames and marine fittings.
6060-T6
6000 Series- Tensile Strength
- 190–215 MPa
- Yield Strength
- 150–170 MPa
- Fatigue Strength
- 55–65 MPa
- Elongation
- 8–12%
- Hardness
- 60–70 HB
- Density
- 2.70 g/cm³
Typical Applications
Architectural profiles, decorative parts, light structural components, furniture and electrical enclosures.
6082-T6
6000 Series- Tensile Strength
- 300–340 MPa
- Yield Strength
- 250–310 MPa
- Fatigue Strength
- 90–100 MPa
- Elongation
- 8–12%
- Hardness
- 90–100 HB
- Density
- 2.70 g/cm³
Typical Applications
Heavy-duty structural parts, bridges, cranes, vehicle frames, construction and machinery structures.
6063-T6
6000 Series- Tensile Strength
- 205–245 MPa
- Yield Strength
- 170–215 MPa
- Fatigue Strength
- 60–70 MPa
- Elongation
- 8–12%
- Hardness
- 70–75 HB
- Density
- 2.70 g/cm³
Typical Applications
Architectural profiles, frames, pipes, decorative parts and high-surface-quality structural parts.
7075-T6
High Strength- Tensile Strength
- 540–572 MPa
- Yield Strength
- 480–510 MPa
- Fatigue Strength
- 150–160 MPa
- Elongation
- 8–11%
- Hardness
- 145–155 HB
- Density
- 2.81 g/cm³
Typical Applications
Aerospace structural parts, high-strength mechanical parts, gears, shafts and high-stress components.
2024-T3
High Strength- Tensile Strength
- 460–485 MPa
- Yield Strength
- 320–345 MPa
- Fatigue Strength
- 120–140 MPa
- Elongation
- 16–20%
- Hardness
- 120–130 HB
- Density
- 2.78 g/cm³
Typical Applications
Aircraft structures, fasteners, automotive parts and high-strength fatigue-critical components.
7050-T7451
High Strength- Tensile Strength
- 510–540 MPa
- Yield Strength
- 430–470 MPa
- Fatigue Strength
- 150–170 MPa
- Elongation
- 8–12%
- Hardness
- 140–155 HB
- Density
- 2.83 g/cm³
Typical Applications
Aerospace structural parts, high-load components and parts requiring high resistance to stress corrosion cracking.
2017A-T4
High Strength- Tensile Strength
- 410–440 MPa
- Yield Strength
- 250–280 MPa
- Fatigue Strength
- 110–130 MPa
- Elongation
- 10–18%
- Hardness
- 110–125 HB
- Density
- 2.78 g/cm³
Typical Applications
Aircraft and automotive parts, fasteners, rivets and general duralumin structural components.
5083-H116
Marine- Tensile Strength
- 300–350 MPa
- Yield Strength
- 215–260 MPa
- Fatigue Strength
- 90–110 MPa
- Elongation
- 10–16%
- Hardness
- 75–85 HB
- Density
- 2.66 g/cm³
Typical Applications
Shipbuilding structures, pressure vessels, cryogenic tanks and marine structures with excellent seawater corrosion resistance.
5052-H32
Sheet Alloy- Tensile Strength
- 210–230 MPa
- Yield Strength
- 130–170 MPa
- Fatigue Strength
- 80–95 MPa
- Elongation
- 10–16%
- Hardness
- 60–70 HB
- Density
- 2.68 g/cm³
Typical Applications
Fuel tanks, marine parts, sheet metal parts, enclosures and lightweight transportation components.
MIC-6 Cast Aluminum
Tooling Plate- Tensile Strength
- 150–180 MPa
- Yield Strength
- 70–110 MPa
- Fatigue Strength
- —
- Elongation
- 1–3%
- Hardness
- 60–70 HB
- Density
- 2.70 g/cm³
Typical Applications
Precision tooling plates, jigs, fixtures and CNC base plates. Not intended for high-load structural use.
Aluminum Finishing Options
Surface Finishes for Aluminum Parts
Over the past 15 years, Weldo has selected more than 50 surface finishes for various aluminum parts.
Machined Finish
The part retains visible tool machining marks after it is processed by the machine tool.
Anodizing
Improves corrosion and wear resistance and supports colored protective coatings.
Sandblasting
Uses high-pressure abrasives to create a clean, rough and matte surface finish.
Powder Coating
Uses electrostatic application and heat curing to form a dense layer that improves corrosion resistance.
Aluminum Parts Gallery
Our Aluminum Machining Projects
Selected aluminum board parts, round parts, multi-axis machined parts and components in different sizes from our original project gallery.
6061-T6 Bushing
Bushing Part
7075-T6 Base
5 axis machined
2024 Aluminum Plate
4-Axis
5083 Aluminum Part
3-Axis
6082 Aluminum Part
Haas machine
6063 Aluminum Plate
Hurco machined Part
Process Overview
Advantages and Limitations of CNC Machining Aluminum
CNC machining aluminum offers precision, efficiency, adaptability and material utilization, while equipment cost, technical requirements, cutting heat and maintenance must also be considered.
Advantages
-
01
High Precision and Consistency
CNC machines provide high precision and consistent results, making them suitable for rapid prototypes.
-
02
High Efficiency
Fast processing speeds make CNC machining suitable for mass production and complex parts.
-
03
Strong Adaptability
CNC machining can handle intricate shapes, curves and holes.
-
04
High Automation
Automated processes reduce labor costs and human error while increasing production reliability.
-
05
High Material Utilization
Precise cutting reduces material waste and saves raw material costs.
Considerations
-
01
Equipment Cost
The initial investment in CNC machines can be high, particularly for high-precision models.
-
02
Technical Requirements
Programming, tool selection and machine setup require operators with a high level of technical skill.
-
03
Thickness Limitations
Thicker or more demanding parts may require additional equipment or processing methods.
-
04
Cutting Heat
Excessive cutting heat can affect material properties and surface quality.
-
05
Maintenance Requirements
Regular maintenance and calibration are required to maintain machine performance and accuracy.
One-Stop Aluminum Machining Partner
Why Work With Weldo Machining
More than 60 multi-axis CNC machines and EDM equipment, DFM service, quality inspection and fast delivery support aluminum projects from samples to production.
60+ Machines
More than 60 multi-axis CNC machines and EDM cutting equipment help ensure consistency in mass production.
DFM Service
Optimize structural designs to reduce manufacturing costs and improve processing efficiency.
Quality Inspection
CMM and other inspection equipment support detection accuracy of up to 0.001 mm.
Fast Delivery
Samples can be shipped within 1 day, while production orders can be shipped in 3–15 days.
Frequently Asked Questions
Find clear answers about the advantages, typical lead time and distortion control involved in CNC machining aluminum parts.
Have an Aluminum Part Ready?
Upload your design files and receive a quote for your custom aluminum machining project.
Send Your Design01 What are the advantages of CNC machining aluminum?
Aluminum offers excellent machinability, allowing CNC machining to produce precise and complex shapes. Its lightweight, high strength and corrosion resistance make it widely used in aerospace, automotive and electronics applications.
02 What is the typical lead time for CNC machining aluminum parts?
Lead time typically ranges from a few days to a couple of weeks, depending on part complexity, material availability and the production schedule. Rush orders may be possible with additional costs for expedited processing.
03 How can aluminum machining distortion be minimized?
Distortion can be minimized by using appropriate cutting parameters, selecting the right tooling and following an optimal machining sequence. Controlling machining temperature and using a proper fixture setup also help reduce warping or distortion.