1. Core application areas of aluminum alloy parts

1. New energy vehicles

Typical parts: battery tray, motor housing, body structure, chassis parts

Advantages: Lightweight (weight reduction of more than 30%) improves endurance, high thermal conductivity optimizes battery heat dissipation, and integrated die-casting technology reduces manufacturing costs.

2. Aerospace

Typical parts: skin, landing gear, engine housing, satellite bracket

Advantages: high specific strength (tensile strength ≥ 500MPa), fatigue resistance, and meet extreme environmental requirements through heat treatment (such as solution aging).

3. Electronic equipment

Typical parts: 5G base station radiator, chip carrier, folding screen hinge, camera bracket

Advantages: micron-level processing accuracy (tolerance ±0.01mm), anodized surface treatment improves wear resistance, and adapts to the trend of miniaturization.
​​4. Industrial Automation​​
​​Typical parts: robot joint housing, reducer housing, precision transmission parts
​​Advantages: high rigidity (elastic modulus 69GPa) combined with lightweight, five-axis CNC machining to achieve complex internal structure.
​​5. Medical equipment​​
​​Typical parts: surgical instrument handles, imaging equipment brackets, artificial joint implants
​​Advantages: biocompatibility (in line with ASTM F67 standard), non-magnetic (such as 6061 aluminum alloy), surface passivation treatment for corrosion resistance.
​​6. Communication equipment​​
​​Typical parts: filter cavity, base station heat sink, fiber optic connector
​​Advantages: high-frequency signal shielding optimization (conductivity ≥30%IACS), micro-arc oxidation technology to enhance weather resistance.
​​7. Rail transit​​
​​Typical parts: high-speed rail doors, body frames, bogie components
​​Advantages: corrosion resistance (salt spray test ≥200 hours), excellent welding performance (TIG/MIG weld strength ≥90% of the parent material).
​​8. New energy equipment​​
​​Typical parts​​: photovoltaic inverter housing, energy storage battery housing, hydrogen fuel cell bipolar plate
​​Advantages​​: The proportion of recycled aluminum has increased (carbon footprint reduced by 40%), and the microporous foaming process has achieved lightweight structure.
​​9. Home appliance industry​​
​​Typical parts​​: washing machine inner drum, refrigerator compressor housing, air conditioner heat sink
​​Advantages​​: Surface spraying (such as NCVM vacuum coating) achieves a spray-free aesthetic effect, and the cost is 30% lower than stainless steel.
​​2. Core features of aluminum alloy parts​​
​​1. Material properties​​
​​Lightweight and high strength: density 2.7g/cm³ (1/3 of steel), through alloying (such as 7075 containing zinc and magnesium) to achieve a balance between strength and lightweight.
​​Corrosion resistance​​: The natural oxide film (Al₂O₃) blocks the corrosive medium, and the thickness of the anodized layer can reach 50μm (military grade).
​​Easy to process: Excellent ductility (elongation ≥ 12%), suitable for high-speed milling, stamping, and extrusion molding.
​​Thermal conductivity and electrical conductivity: Thermal conductivity 200-240W/m·K (better than engineering plastics), electrical conductivity second only to copper.
​​Recyclability: The energy consumption of recycled aluminum is only 5% of that of original aluminum, which complies with the EU RoHS/REACH environmental protection standards.
​​2. Processing characteristics

High-precision molding:
CNC processing can achieve micron-level tolerances (such as Ra0.02μm mirror polishing), suitable for optical devices and semiconductor fixtures.
Five-axis linkage processing of complex curved surfaces (such as impellers, conformal cooling channels) reduces secondary finishing.
​​Diversified surface treatment:
Micro-arc oxidation (MAO): high temperature resistance (＞500℃), insulation, used for aviation igniter housings.
PVD coating: TiAlN coating hardness reaches 3000HV, extending the mold life by 3-5 times.
​​Complex structure integration​​:
3D printing (SLM) forms conformal flow channel heat sinks, and the internal structure has no dead angles.
Deep cavity processing technology (such as G code adaptive compensation) solves tool interference problems.
​​3. Economic and environmental characteristics
Cost-effectiveness
Compared with titanium alloy/stainless steel, material costs are reduced by 50% and processing efficiency is increased by 20%.
Lightweight energy efficiency
For every 100kg weight reduction of the car, fuel consumption is reduced by 0.3-0.5L/100km.
Sustainability
Carbon emissions from recycled aluminum production are only 5% of original aluminum, which meets ESG requirements.
​​III. Key challenges and solutions
Thermal deformation control
Vacuum aging treatment (temperature 120℃±5℃) is used to reduce residual stress by 80%.
Optimize cutting parameters (such as line speed 200-500m/min) to reduce processing vibration.
Surface micro-scratch repair
Laser cladding technology fills micron-level defects and restores surface roughness to below Ra0.8μm.
Environmental compliance:
Replace the cyanide plating process and use chromium-free passivation (such as ceramic treatment) to meet the RoHS directive.

Q1. When can I get the price?
We usually offer you a quotation within 12 hours, and the special offer is not more than 24 hours. Any urgent cases, please contact us directly by phone or send email to us.

Q2:If you can not find on our website the product you need how to do?
You can send the pictures/photos and drawings of the products you need by email , we will check if we have them. We develop new models every month, Or you can send us samples by DHL/TNT, then we can develop the new model especially for you.

Q3:Can You Strictly Follow The Tolerance on The Drawing And Meet The High Precision?
Yes, we can, we can provide high precision parts and make the parts as your drawing.

Q4: How should I order and make payment?
By T/T, for samples 100% with the order；for production, 30% paid for deposit by T/T before production arrangement, the balance to be paid before shipment.

Q5: What’s your Delivery Time?
Standard parts: 7-15days
Non-standard parts: 15-25days
We will make the delivery as soon as possible with the guarantee quality.

Q6:How to Custom-made (OEM/ODM)
If you have a new product drawing or a sample, please send to us, and we can custom-made the hardware as your required. We will also provide our professional advices of the products to make the design to be more realized & maximize the performance.

Q7:Which mode of transport would be better?
In general, the production are heavy, we advice to make delivery by sea, Also we respect your views of other transportation as well.

Dongguan Zhongwei Metal Products Co., Ltd. is a leading manufacturer specializing in the production of precision CNC Milling Parts. Established with a commitment to excellence and innovation, we have earned a reputation for delivering high-quality, customized solutions to meet the diverse needs of our clients across various industries.

Our team of skilled engineers and technicians, with extensive experience in the field, are dedicated to ensuring every stage of the production process, from design to finished product, meets the highest standards of quality. We offer comprehensive services, including but not limited to, 3D modeling, tool path programming, material selection advice, and rigorous quality control inspections, ensuring that our CNC milling parts exceed our clients' expectations.

Dongguan Zhongwei Metal Products Co., Ltd. prides itself on its flexibility and ability to tackle complex projects. Whether it's prototyping for new designs, small-batch production, or large-scale manufacturing, we have the expertise and resources to deliver timely and cost-effective solutions. We work closely with our clients to understand their unique requirements and provide tailored recommendations that optimize performance and enhance efficiency.

Our product portfolio encompasses a wide range of CNC milling parts utilized in diverse applications such as automotive components, aerospace parts, medical devices, electronics, and more. By adhering to strict international standards and maintaining a focus on continuous improvement, we guarantee the reliability and durability of our products.

At Dongguan Zhongwei Metal Products Co., Ltd., we believe in fostering long-term partnerships with our clients. Our dedicated customer service team is always available to provide support, answer queries, and ensure seamless communication throughout the project lifecycle. With a strong emphasis on integrity, quality, and innovation, we strive to be the preferred partner for all your CNC milling needs.

Join us in driving precision manufacturing to new heights. Contact Dongguan Zhongwei Metal Products Co., Ltd. today to discuss your project requirements and experience the difference that precision and dedication make.