Trustworthy Professional manufacturer of non-standard aluminum parts CNC machining CNC Machining Service

We are a manufacturer integrating industry and trade. We have more than 20 years of experience in production technology. We are located in Dongguan City, Guangdong Province, China.

Core Advantages and Technical Features of CNC-Machined Precision Aluminum Parts

I. The Ultimate Pursuit of Geometric Accuracy and Dimensional Stability non-standard aluminum parts

1. The most significant advantage of CNC-machined precision aluminum parts lies in their exceptional dimensional accuracy and geometric stability.

Utilizing high-precision CNC machining centers, the dimensional tolerances of parts can be stably controlled within the IT5-IT7 grade (±0.005-0.015mm), with a positional accuracy of ±0.01mm and a surface roughness of Ra0.4-1.6μm.

2. The integrated machining capability for complex surfaces is particularly outstanding.

Through five-axis linkage technology, precision machining of complex curved surfaces can be completed in a single setup, with a surface contour error ≤0.02mm. For aluminum alloy lens barrels used in optical equipment, the coaxiality between the internal multi-level steps and the external mounting surface is guaranteed to be within 0.01mm, ensuring precise alignment during lens assembly and significantly improving image quality.

3. The high consistency of mass production provides a reliable guarantee for industrial automated assembly.

In the mass production of automotive sensor housings, the critical dimension dispersion of 10,000 units does not exceed 0.008mm, and the CPK value consistently remains above 1.67.

II. Integrated Machining of Complex Structures and Functional Features

1. Precision Machining of Micro-Features Demonstrates Technological Strength.

Using micro-milling cutters (0.1-1.0mm in diameter) and high-speed spindles (30,000-50,000rpm), micro-grooves with a width of 0.15mm and deep holes with a diameter of 0.3mm can be machined, achieving a depth-to-diameter ratio of 15:1. For aluminum alloy valve cores used in precision flow meters, the machining accuracy of the micro-grooves directly determines the linearity and repeatability of flow control.

2. Precise Realization of Three-Dimensional Complex Flow Channels.

Through multi-axis simultaneous milling, three-dimensional curved flow channels can be machined inside components, with a channel diameter of 1-3mm, a turning angle R0.5mm, and an inner wall roughness Ra0.8μm.

III. Full Utilization of Material Properties

1. High-strength aluminum alloys such as 7075-T6 and 2024-T4 exhibit excellent performance in precision manufacturing.

By optimizing cutting parameters, precise dimensions can be achieved while maintaining material strength, with tensile strength reaching over 570 MPa (7075-T6). Aerospace-grade aluminum alloy structural components, after CNC machining, exhibit a strength exceeding that of many steels, achieving significant weight reduction while ensuring structural reliability.

2. Synergistic Optimization of Heat Treatment and Machining.

After rough machining, a 0.2-0.3 mm finishing allowance is reserved. Precision machining is then performed after heat treatment, eliminating the effects of heat treatment deformation and ensuring final dimensional accuracy. For aluminum plates used in precision tooling fixtures, flatness deformation is controlled within 0.02 mm after heat treatment and restored to 0.005 mm after finishing.

3. Precise Control of Surface Integrity.

A surface roughness of Ra 0.2-0.4 μm is achieved through finishing, while simultaneously creating a beneficial residual compressive stress field.

IV. Perfect Balance Between Lightweight Design and Rigidity

1. The low-density characteristics of aluminum alloys are fully utilized through precision machining.

Under the same rigidity and strength requirements, aluminum components are 65% lighter than steel components. Aluminum alloy frames for drones, through topology optimization design and precision machining, achieve extreme lightweighting while maintaining rigidity, reducing the overall weight by 30% and extending flight time.

2. Stable machining technology for thin-walled structures.

Using high-speed cutting and specialized vacuum fixtures, thin-walled precision components with a wall thickness of 0.5-1.0mm can be stably machined, with wall thickness tolerance controlled within ±0.02mm. Aluminum alloy housings for precision instruments achieve minimal weight while ensuring shielding performance, facilitating handheld use.

3. Precise implementation of localized reinforcement.

In areas of stress concentration, localized wall thickness or reinforcing ribs are added through CNC machining. The reinforcing ribs are 1-2mm high and 0.8mm wide, with smooth transition areas. Aluminum alloy bases for precision motion platforms, this differentiated design increases dynamic rigidity by 40% while increasing weight by only 10%. V. Precision Integration of Surface Treatment and Functional Coatings

1. The Perfect Foundation for Anodizing

The surface roughness Ra of 0.8-1.6μm achieved through CNC machining provides an ideal substrate for anodizing. After hard anodizing, the surface hardness can reach HV400 or higher, increasing wear resistance by 5 times. For precision slide rail aluminum alloy parts, hard anodizing extends service life by 3 times.

2. Precise Control of Conductive Anodizing

Precision parts requiring conductive grounding undergo conductive anodizing after precision machining, achieving a film thickness of 2-5μm and stabilizing contact resistance below 0.1Ω. Grounding components for electronic equipment ensure the continuity of electromagnetic shielding.

VI. Manufacturing Efficiency and Economic Benefits

1. High-Speed ​​Cutting Technology Significantly Improves Processing Efficiency

Cutting speeds for aluminum alloys can reach 1000-2000m/min, increasing processing efficiency by 5-8 times compared to steel. For complex precision parts, the processing time from blank to finished product is reduced by 50-70% compared to traditional processes, significantly shortening delivery cycles. 2. Significantly improved material utilization.

By optimizing blank dimensions and processing paths, the utilization rate of aluminum alloy sheets and bars has increased from 60-70% using traditional processes to 85-90%. By employing near-net-shape forging blanks combined with precision machining, the material utilization rate for aerospace precision components can reach over 95%.

Company Profile

    We are a manufacturer integrating industry and trade. We have more than 20 years of experience in production technology. We are located in Dongguan City, Guangdong Province, China. We have advanced high-end professional production and processing technology, and are committed to innovative R&D and production. After years of  market tempering and exploration, it has high-quality   technical management personnel, experienced designers, R&D personnel and a   perfect company management system cnc precision.

5-axis CNC workshop

         Our factory has a plant area of about 2,000 square meters and masters core processing technologies. It has high-end precision production equipment cnc precision: CNC lathes, 5-axis CNC, 4-axis CNC, stamping equipment, die-casting equipment, etc. 2.5-dimensional detection equipment ​

two-dimensional testing

cnc precision surface treatment

          For surface treatment, our suppliers have been working with us for many years. They have rich experience and are familiar with all the quality requirements of each other. The quality is stable and more guaranteed. Such as: heat treatment, spray painting, powder coating, blackening, silver/gold plating, electrolytic polishing, nitriding, phosphating, nickel/zinc/chromium/TiCN plating, anodizing, polishing, passivation, sandblasting, galvanizing, heat treatment , hardening, laser marking, etc. according to customer requirements. Aluminum alloy surface oxidation

Product Packaging

Packaging Details

1. Commercial packaging: 1pc/plastic bag + color box +carton + pallet;
2. Industrial packaging: (1). plastic tube + carton + pallet; (2). plastic bag + kraft paper + carton + pallet;
3. According to the requirement of customer.

FAQ

Q1: Where can I get product & price information?

A1: Send us an inquiry e-mail, we will contact you once we received your mail.

Q2: How long will I get the sample?

A2: Depends on your specific items, within 3-7 days generally.

Q3: What kinds of information do you need for a quote?

A3: Kindly please provide the product drawings in PDF, if provide in STEP or IGS will be better.

Q4: What are the payment terms?

A4: We accept 50% as a payment deposit, when the goods are prepared, we shoot photos or videos for your check, and then you can pay the balance. For small quantities, we accept Paypal, the commission will be added to the order. For big amounts, T/T is preferred.

Q5: How to deliver the goods?

A5: We deliver the products by courier company.

Q6: Are you a trading company or factory?

A6: We are factory direct with 17 experienced engineers and more than 50 employees as well approximate 3,000m2 workshop area.

Q7: What shall we do if we don't have drawings?

A7: Please send your sample to our factory, then we can copy and provide you better solutions. If send us pictures or drafts with dimensions(Length, Height, Width), CAD or 3D file will be made for you.

Q8: Can we get some samples before mass production?

A8: Absolutely yes.

Q9: Will my drawings be safe after sending them to you?