We have focused on CNC sheet metal processing for many years. Relying on advanced CNC milling equipment and a mature milling process system, we provide high-quality precision sheet metal processing solutions for customers in various industries. We support customized services based on drawings and samples, organize production on demand, and deliver accurately and on time, providing a one-stop solution for all kinds of CNC sheet metal processing needs of our customers.
CNC Plane Milling: As a core milling process, it is suitable for surface machining of various metal sheet materials. It can achieve precise milling of flat and stepped surfaces, with a milling accuracy of ±0.03mm. The surface finish is high, free of scratches and burrs, laying a solid foundation for subsequent machining processes. It is widely used in the precision machining of sheet material base surfaces and mounting surfaces.
CNC Contour Milling: Targeting irregular contours and complex curved structures of sheet materials, the CNC system precisely controls the milling cutter's movement trajectory, flexibly milling various irregular shapes, grooves, chamfers, and other structures. It achieves high forming accuracy and smooth contours, requiring no secondary machining. It is suitable for high-end machining needs such as precision instrument parts and irregularly shaped structural components.
CNC Hole Milling: Focusing on precision hole machining of sheet materials, it can achieve integrated milling of various hole types such as through holes, blind holes, stepped holes, and threaded holes. Hole positioning is precise, and hole diameter is uniform, effectively avoiding the hole position deviation problems of traditional machining methods. It is suitable for various precision sheet material parts that require assembly.
CNC Cavity Milling: For complex structures such as internal cavities and grooves in sheet metal, a layered milling process is used to precisely control cavity depth and dimensions, resulting in smooth, stepless inner walls. This allows for the machining of various irregularly shaped cavities and grooves, suitable for high-end equipment housings and precision cavities.
Precision Milling Auxiliary Processes: Supporting CNC precision milling, deburring, and polishing processes are provided to finely process the milled sheet metal, further improving surface finish and dimensional accuracy, optimizing assembly performance, and meeting the processing requirements of high-end precision sheet metal.
Carbon Steel (Prioritized for Cost-Effectiveness): Primarily cold-rolled steel (Q235/SPCC) and hot-rolled steel (Q235/SS400), accounting for over 80% of sheet metal processing. This type of sheet metal has a smooth surface, high precision, and is easy to CNC milling, resulting in a good surface finish. It is suitable for processing various precision structural parts, mounting bases, and other products. Surface rust prevention treatment is required after processing.
Stainless Steel (Prioritized for Corrosion Resistance): Mainly using 304 and 316 grades, it possesses excellent corrosion and oxidation resistance, requiring no additional rust prevention treatment. It also has excellent milling performance, enabling high-precision milling while balancing processing convenience and weather resistance. It is suitable for processing precision sheet metal parts in outdoor precision equipment, food machinery, and medical equipment.
Aluminum Alloys (Lightweight Preferred): The core materials are 6061 and 5052 aluminum alloys, with a density only one-third that of steel. They are lightweight, have excellent electrical conductivity, are easier and more efficient to mill, and can handle complex contours and precision holes, resulting in excellent surface finish. 6061 aluminum sheets have higher strength, suitable for precision components in new energy products and heat sink brackets; 5052 aluminum sheets have good ductility, suitable for milling complex cavities.
Coated Steel Sheets (Transitional Preferred): Including hot-dip galvanized sheets, electro-galvanized sheets, and aluminized zinc steel sheets. These sheets are coated on a carbon steel base, providing inherent rust resistance. They effectively protect the substrate during milling, and the coating is less prone to peeling after milling. They are suitable for indoor and outdoor precision structural components, photovoltaic precision brackets, and other applications requiring CNC milling.
Special sheet metal (suitable for special working conditions): We can provide special sheet metal such as tin-plated sheet (food grade, suitable for precision packaging container milling), color steel sheet (with color coating, suitable for precision milling of outdoor decorative parts), and heat-resistant steel sheet (309S/310S, suitable for precision milling of high-temperature equipment) according to customer needs to meet the personalized needs of CNC milling in special scenarios.
| Process | Features | Applications |
|---|---|---|
| Coating Processes | Mainstream processes include powder coating and liquid coating, both suitable for various CNC milled parts. Powder coating is environmentally friendly with no VOC emissions, producing a coating thickness of 60-120μm, offering strong protection and rich colors and textures. Liquid coating can achieve special effects such as metallic and pearlescent finishes, resulting in a fine coating. | Powder coating is suitable for mass production scenarios such as CNC milled chassis and cabinets, and outdoor precision structural parts; liquid coating is suitable for small-batch customized scenarios such as CNC milled automotive parts and high-end precision milled parts. |
| Electroplating processes | Mainly include zinc plating and nickel plating, suitable for CNC-milled sheet metal parts made of carbon steel, alloy steel, copper, and aluminum. Zinc plating is inexpensive and provides good rust prevention; nickel plating offers a smooth finish and superior corrosion resistance compared to zinc plating, combining both decorative and functional benefits. | Zinc plating is suitable for CNC-milled precision structural parts made of low-carbon steel; nickel plating is suitable for high-precision CNC-milled precision parts. |
| Anodizing | Specifically designed for CNC-milled aluminum parts, it generates a dense oxide film through electrolysis. It can be dyed to achieve various colors and features high hardness, strong corrosion resistance, and excellent insulation properties. It is divided into ordinary anodizing and hard anodizing. | Suitable for CNC-milled electronic product housings, precision instrument components, and other products, it can adapt to milled parts with different wear resistance requirements. |
| Refined finishing processes | Including metal brushing, sandblasting, and anti-fingerprint treatment, these are core post-processing steps for CNC milled parts. Metal brushing enhances the surface texture of milled parts, sandblasting creates specific surface roughness, and anti-fingerprint treatment achieves oleophobic and hydrophobic effects, making them easy to clean. | Suitable for high-end CNC milled parts with high requirements for appearance and performance, meeting subsequent assembly and aesthetic needs. |
| Marking Processing | We offer two marking methods: screen printing and laser marking. Screen printing is lower in cost and higher in efficiency; laser marking offers high precision and permanent marking, and uses a non-contact processing method that will not damage the precision surfaces of CNC milled parts. | Screen printing is suitable for adding brand logos to batch CNC milled parts; laser marking is suitable for marking needs of high-end precision milled parts. |
Our products are precisely tailored to the core needs of various industries for precision sheet metal machining. With extensive experience in precision milling services across multiple fields, our stable milling accuracy and efficient delivery capabilities have made us the preferred partner for clients in various industries. We can customize various industry-specific CNC milling solutions according to customer requirements.
Customization Support: We support customization based on provided drawings (accepting various drawing formats such as CAD and SolidWorks) and samples. Whether customers provide explicit drawings or only sample references, our company can accurately interpret customer needs and formulate a scientific and reasonable processing plan.
Process Optimization: Our technical team will optimize the CNC milling process based on the customer's milling requirements and the characteristics of sheet metal milling. We will precisely adjust the milling trajectory, depth, and accuracy to reduce milling costs and improve milling production efficiency while ensuring the performance of the milled products.
Quality Control: We implement strict CNC milling quality control standards throughout the entire process. From sheet metal selection (ensuring suitability for milling), the milling process, to surface treatment and finished product inspection, each process is handled by dedicated personnel to ensure that the milling accuracy and surface finish of the products meet customer expectations.
Flexible Delivery: We are adaptable to various production modes, including small-batch prototyping, medium-batch production, and large-batch mass production. We scientifically and reasonably arrange production plans according to customer deadlines to ensure timely product delivery and avoid impacting customer project progress.
If you have any CNC sheet metal milling needs, whether for standard milling or custom non-standard milling, please feel free to contact us. Provide your drawings or samples, and we will tailor a unique CNC milling solution for you, working together to achieve mutual benefit.
