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Aluminum Stamping Parts
-- Steady & Reliable Manufacturer --
Yuyao Hongli Optoelectronics Co., Ltd. is a premier source manufacturer of Aluminum Stamping Parts, delivering high-precision lightweight brackets, heat sinks, electronic enclosures, and structural automotive components. Operating from our 5,000-square-meter facility in Yuyao, Zhejiang, we utilize specialized servo presses, multi-station progressive dies, and high-precision CNC routers. We process high-performance aluminum alloys, including 1060, 3003, 5052, and 6061, balancing high strength, corrosion resistance, and thermal conductivity. Backed by over 20 years of custom metal stamping heritage, Yuyao Hongli offers complete OEM/ODM manufacturing, including anodizing, chemical conversion, and direct-factory pricing.
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Stamped circular parts with holes
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Stamped square parts with holes
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Stamped ultra-thin parts
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Stamped small square parts
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Stamped miniature parts
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Stamped bendable strip-shaped parts
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Square-shaped precision machined stamped parts
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Stamped chassis parts
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Circular stamped parts with a central hole
MANUFACTURING CAPABILITIES
Equipment and process capabilities
From mold design to batch stamping, we cover production needs of different tonnages and precision levels.
- 01
Precision Lightweight Progressive Stamping
Using multi-station progressive dies on servo presses, we stamp complex aluminum parts with high pitch accuracy, clean edges, and zero cracking along bend lines.
- 02
Deep Drawing & Shell Forming
Our deep drawing processes utilize specialized lubricants and polished carbide dies to shape seamless aluminum cups, battery cans, and sensor housings without material tearing.
- 03
High-Efficiency Heat Sink Stamping
We stamp high-surface-area aluminum cooling fins and LED heat spreader plates, maximizing thermal dissipation for electronics and automotive lighting.
- 04
Precision Laser Cutting & CNC Trimming
Utilizing 3000W fiber laser cutters and 4-axis CNC machining, we perform rapid prototype trimming and secondary feature machining on stamped aluminum parts.
SPEC · Overview of Key Equipment Parameters
| Equipment Type | Tonnage / Specification | Machinable Material | Typical Processing Thickness |
|---|---|---|---|
| High-Precision Servo Stamping Press | 45T - 200T Servo Motion Press | 1060, 3003, 5052, 6061-T4/T6 Aluminum | 0.3mm - 4.0mm Aluminum Sheet |
| Deep Draw Hydraulic Press | 100T - 250T Double-Action Press | Soft & Medium Temper Aluminum Alloys | 0.5mm - 3.0mm Sheet Stock |
| High-Speed Fiber Laser Cutter | 3000W CNC Fiber Laser | Aluminum Sheet & Plate | 0.5mm - 6.0mm Cutting Capacity |
| Automated Anodizing Line | Sulfuric Acid Anodizing Tanks | Stamped Aluminum Components | Anodic Film 5 - 25 microns |
QUALITY CONTROL
Full-process quality control system
From incoming material inspection to full outgoing inspection, key processes are equipped with inspection points to ensure batch consistency.
3D CMM & Optical Profile Verification
Ensuring absolute geometric fidelity across light-gauge aluminum stampings.
- 3D Coordinate Measuring Machine (CMM) checking for complex contours and hole patterns.
- High-resolution 2D optical measuring systems for rapid lot sampling.
- Surface flatness and springback measurement using laser profilometers.
Anodizing Film & Corrosion Testing
Validating surface protection and coating adhesion under outdoor conditions.
- Eddy-current coating thickness testing for anodized layers (5 - 25 碌m).
- Neutral Salt Spray (NSS) testing per ASTM B117 (up to 480 hours).
- Cross-hatch adhesion testing (ISO 2409) for painted aluminum surfaces.
Material Grade & Hardness Audit
Confirming raw aluminum alloy composition and temper before production.
- XRF Spectrometer (PMI) analysis to verify alloy purity (1000 to 6000 series).
- Webster and Barcol hardness testing to confirm temper status (e.g., T4/T6).
- Microscopic grain structure analysis for deep-drawn components.
SURFACE FINISHING
Surface treatment process
Depending on the usage environment and appearance requirements of the parts, we offer anti-corrosion, wear-resistant, or decorative surface treatment solutions.
| Finishing Process | Applicable Material | Primary Function | Typical Application |
|---|---|---|---|
| Clear / Color Anodizing | 5052, 6061 Aluminum Alloys | Increases corrosion resistance, surface hardness, and provides decorative color options | Electronics faceplates, outdoor LED light brackets, automotive trim |
| Chromate Conversion Coating (Chemical Film) | 1060, 3003, 5052 Aluminum | Improves paint adhesion while maintaining low electrical contact resistance | Internal electronics shielding covers, heat sink plates, grounding brackets |
| Electrostatic Powder Coating | All Stamped Aluminum Grades | Delivers a thick, weather-resistant, UV-durable protective coating | Architectural mounting clamps, outdoor lighting housings, automotive brackets |
| Sandblasting & Mechanical Brushing | 3003, 5052, 6061 Aluminum | Creates a fine matte or elegant hairline texture, hiding surface scratches | Consumer electronics enclosures, luxury interior automotive accents |
Note: The above is a standard process list. Specific film thickness, color, and salt spray resistance rating can be customized according to customer drawings.
APPLICATIONS
Main application areas
Our products are widely used in industries that require high structural strength and precision consistency.
Automotive & New Energy Vehicle (EV) Parts
Lightweight aluminum stampings engineered for vehicle weight reduction and EV battery systems.
- EV battery cell busbar cover plates and tray brackets
- Automotive dashboard and body structural brackets
- Thermal management heat dissipation plates
Electronics & LED Lighting Housings
High thermal conductivity aluminum stampings built for electronics and lighting.
- LED street light heat sink plates and mounting frames
- Consumer electronics chassis shields and battery contacts
- Power supply unit (PSU) enclosure covers
Industrial Machinery & Architectural Hardware
Corrosion-resistant aluminum stampings designed for industrial enclosures and building hardware.
- Solar panel mounting clips and frame connectors
- HVAC ducting brackets and damper blades
- Control cabinet door hinges and handle brackets
PRODUCTION / FACTORY ADVANTAGES
Factory production advantages
With its own factory and equipment, the company ensures stable delivery times and controllable costs.
20+ Years of Aluminum Tooling Expertise
Yuyao Hongli brings deep technical experience in controlling aluminum springback, soft-alloy galling, and tool wear.
Integrated Stamping & Anodizing Facilities
Our facility combines tool design, high-speed stamping, laser cutting, and surface finishing under one roof in Yuyao, Zhejiang.
Full Traceability & Alloy Quality Control
Every batch includes complete material composition test reports, temper certification, and CMM inspection documentation.
CUSTOM MANUFACTURING PROCESS
Customized production process
From receiving drawings to batch delivery, standardized processes ensure traceability at every stage.
1. DFM Review & Alloy Selection
Engineers analyze part prints, select the ideal aluminum alloy and temper (e.g., 5052-H32, 6061-O/T6), and simulate stress.
2. Progressive Die Engineering & Build
In-house toolmakers fabricate stamping dies with polished, hard-chrome coated inserts to prevent aluminum galling.
3. Trial Stamping & First Article Inspection (FAI)
Sample parts undergo 3D CMM inspection, hardness testing, and trial anodizing for customer sign-off.
4. High-Speed Production & Surface Treatment
Automated presses run high-volume production, followed by vibratory deburring and chemical anodizing or powder coating.
5. Final Quality Audit & Export Packaging
Parts undergo 100% optical inspection, anti-scratch protective packaging, and secure export cartoning.
FAQ
Frequently Asked Questions
Here are some questions that clients often ask before cooperating with us.
What aluminum alloys do you process for stamping parts?
We regularly process 1060 (pure aluminum), 3003, 5052 (marine grade), and 6061-T4/T6 structural alloys.
How do you prevent cracking when bending 6061 aluminum?
We stamp 6061 in its annealed (O-temper) state or use T4 temper with proper bend radii, followed by heat treatment to achieve T6 hardness if required.
Can you provide anodizing in custom colors?
Yes. We offer clear, black, blue, red, and custom anodized finishes along with chromate conversion coatings.
What is your typical lead time for custom aluminum stamping tooling?
Custom progressive tooling design and fabrication take 25 to 35 days, with sample parts delivered immediately following tryouts.
About Us
Yuyao Hongli Optoelectronics Co., Ltd.
Yuyao Hongli Optoelectronics Co., Ltd. is a comprehensive enterprise with over 20 years of experience in the manufacturing industry. Located in the Yangming Science and Technology Industrial Park of Yuyao, Zhejiang Province, it enjoys convenient transportation and a solid industrial foundation. As a famous China Aluminum Stamping Parts Suppliers and Aluminum Stamping Parts Factory, founded in 2000, formerly known as Yuyao Hongli Optoelectronics Educational Instruments Co., Ltd., the company is wholly owned by a natural person, with Xie Gang as the legal representative. Its registered capital of 500,000 yuan has been fully paid up, and it has maintained its continued development through stable operations.
Relying on a 5,000-square-meter modern factory and multiple stamping workshops, the company has built a diversified product system. Its core businesses cover the manufacturing, processing and wholesale and retail of educational instruments, optical instruments, household electric heaters, small household appliances, auto parts, hardware and plastic products, etc. At the same time, it operates and acts as an agent for the import and export trade of goods and technologies, and its products are sold at home and abroad.
The company brings together industry management elites and senior engineers to form a mature R&D and management team. Adhering to the business philosophy of "integrity and pragmatism," it is committed to providing customers with high-quality products and comprehensive after-sales service. Leveraging its diversified portfolio, certification guarantees, and import/export advantages, the company actively expands cooperation both domestically and internationally, and is willing to establish long-term and stable trade partnerships with partners from all sectors, continuously striving forward in the wave of intelligent and high-end development in the manufacturing industry.
Relying on a 5,000-square-meter modern factory and multiple stamping workshops, the company has built a diversified product system. Its core businesses cover the manufacturing, processing and wholesale and retail of educational instruments, optical instruments, household electric heaters, small household appliances, auto parts, hardware and plastic products, etc. At the same time, it operates and acts as an agent for the import and export trade of goods and technologies, and its products are sold at home and abroad.
The company brings together industry management elites and senior engineers to form a mature R&D and management team. Adhering to the business philosophy of "integrity and pragmatism," it is committed to providing customers with high-quality products and comprehensive after-sales service. Leveraging its diversified portfolio, certification guarantees, and import/export advantages, the company actively expands cooperation both domestically and internationally, and is willing to establish long-term and stable trade partnerships with partners from all sectors, continuously striving forward in the wave of intelligent and high-end development in the manufacturing industry.
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