Hi-Precision provides CNC turning small parts services. Hi-Precision is located in China. It is a technology company that provides CNC lathe processing services for various industries around the world and has passed ISO9001:2015 certification. We have imported machining centers, CNC lathes, Swiss lathes, milling machines and other equipment, which can process a variety of materials including aluminum alloy 7075 with high processing accuracy and tolerance up to +/-0.001mm, and provide OEM customized processing services.
Why Choose CNC Turning Technology to Process Metal Covers?
CNC turning can accurately control the processing size. When processing metal caps, the dimensional tolerance can be controlled within a very small range through the precise programming of the CNC system. For example, for key dimensions such as the outer diameter and inner diameter of the metal cap, the tolerance can reach ±0.01mm or even higher. This is because the coordinate axis of the CNC turning machine is driven by a high-precision servo motor and can accurately position and cut according to program instructions, thereby ensuring the accuracy of the part size.
Metal caps often require good shape accuracy, such as roundness and cylindricity. During the CNC turning process, the tool moves along the preset path, which can effectively ensure the accuracy of the processed shape. For example, when turning the outer circle and inner hole of the metal cap, through reasonable programming and machine tool accuracy, the roundness error can be controlled within a very small range, usually within 0.005mm, which is very important for metal caps that need to fit closely with other parts.
CNC turning can well control the surface roughness. By selecting appropriate cutting parameters (such as cutting speed, feed rate and cutting depth) and tools, the surface of the metal cap can achieve the ideal roughness. Generally speaking, the surface roughness can reach Ra0.8 – Ra1.6μm, which is critical for metal caps with high appearance requirements or good sealing performance. For example, when processing some metal caps with decorative appearance or used for food packaging, good surface roughness can improve the quality and aesthetics of the product.
Most metal caps are in the shape of a body of revolution, and CNC turning technology is very suitable for processing such shapes. It can easily process circular outer contours, inner holes, steps and other structures. For example, for metal caps with multiple steps, CNC turning can process the size and shape of each step in sequence from outside to inside or from inside to outside by layered cutting, and can well ensure the coaxiality and dimensional accuracy between adjacent steps.
In addition to the basic body of revolution shape, CNC turning can also process some metal caps with special structures. For example, the metal cap has a threaded structure, and CNC turning can use a thread turning tool to accurately process various standard threads, such as metric threads, imperial threads, etc. In addition, the thread parameters such as pitch and tooth type can be accurately controlled during the processing to ensure the accuracy and quality of the thread. If the edge of the metal cover needs to be grooved, CNC turning can also easily achieve it, accurately controlling the width, depth and position of the groove.
CNC turning is a processing technology with a high degree of automation. Once the program is written and debugged, the machine tool can automatically process according to the preset program without frequent human intervention. This greatly reduces the manual operation time in the processing process and improves the processing efficiency. For example, when batch processing metal covers, the machine tool can produce continuously, reducing the time delay caused by manual operation.
CNC lathes are usually equipped with a quick tool changer, which can quickly change tools when different types of tools (such as external turning tools, internal turning tools, grooving tools, thread turning tools, etc.) are needed to process metal covers. Moreover, the CNC system can accurately adjust the compensation of the tool to ensure that the tool can still be accurately processed after the tool is replaced, which further improves the continuity and efficiency of the processing.
CNC turning can reasonably apply cutting parameters according to the material, shape and processing requirements of the metal cover. By optimizing parameters such as cutting speed, feed rate and cutting depth, the processing efficiency can be maximized while ensuring the processing quality. For example, in the roughing stage, a larger cutting depth and feed rate are used to quickly remove the excess of the blank; in the finishing stage, smaller cutting parameters are adjusted to obtain high-precision surfaces and dimensions, thereby achieving efficient processing.
Since CNC turning is an automated processing process controlled by a program, compared with traditional manual turning, the impact of human factors on processing quality is greatly reduced. As long as the operator correctly writes the program, installs the blank and tool, and sets the machine tool parameters, the machine tool can perform processing stably. This can avoid fluctuations in processing quality caused by factors such as the operator’s technical level and fatigue, and ensure the stability and consistency of the metal cover processing quality.
Our CNC lathe is also equipped with a processing process monitoring system. When processing metal covers, parameters such as cutting force, cutting temperature, and tool wear can be monitored in real time. Once an abnormal situation occurs, such as excessive tool wear or excessive cutting force, the machine tool can promptly alarm or automatically adjust the cutting parameters to ensure smooth processing and stable processing quality. In addition, after the processing is completed, the metal cover can be quality inspected using the CNC lathe’s own measuring device or external measuring equipment, which is convenient for timely detection of quality problems and adjustments.
