In the operation of the machine shop, CNC turning is a common machining method of CNC machining. This is through the control of the computer, so that the machinist generates programming according to the drawings to complete the machining and manufacturing technology by CNC turning.
CNC turning is very popular in metal machining parts and prototype machining and manufacturing. This article mainly describes the development and application of CNC turning. If you like this kind of CNC turning-related information, please follow this article to discuss and discuss Bar.
The working principle of CNC turning
CNC turning is a CNC machining process used to manufacture cylindrical parts, in which the cutting tool moves in a linear manner while the workpiece is rotating. Using a lathe for rotation, the CNC turning process will reduce the diameter of the workpiece, which is usually used to specify the size and produce a CNC turned part finish.
The history of CNC turning
CNC machining started from the first metal frame CNC turning developed in 1751. This is also the first machine in history to focus on production, which is more precise than traditional manual production methods. Then, as the beginning of the Cold War ushered in a new turning point, CNC machining began to enter the computer era. In the following time, CNC turning also developed further along with CNC machining, and finally became one of the mainstream machining methods of CNC machining today.
The basic machining technology of CNC turning
CNC turning has good adaptability in machining production. The cutting process is relatively stable and continuous, and the change of cutting force is small. It has a certain guarantee for the accuracy of the surface position of the processed CNC turned parts, and is suitable for finishing metal parts.
Car end face and steps
The plane at both ends of the cylinder is called the end face. The part connected by two cylinders with different diameters is called a step.
1. The method of turning the end face: the right offset tool turns the end face from the outside to the inside, and it is easy to penetrate into the CNC turning parts to form a concave surface; use the right offset tool to turn the end face from the center to the outside, the cutting is smooth, and it is not easy to produce a concave surface; The side cutter is turned from the outside to the end face of the center, and the main cutting edge is used to cut, and the cutting conditions are improved. The end face of the elbow is turned with the cutting edge, which is very smooth. It can not be used on the end face of the car, but also can be used for the outer circle and chamfer of the car.
2. Step method: CNC turning workpieces with steps lower than 5mm can be completed in one time on the outer circle of the turning tool. CNC turning of workpieces higher than 5mm steps, because the shoulders are overcut, the cutting will cause vibration. Therefore, the stepped workpiece can be cut to the approximate shape of the step with an external turning tool first, and then finished by layered cutting with an offset knife.
CNC turning and turning shaft
One of the typical parts in the machine is often encountered when shaft workpieces, and CNC turning is also a relatively common and common machining method. Shaft CNC turning parts are rotating parts, the length is greater than the diameter, the outer cylindrical surface, cross-section and steps.
1. External turning tool: Commonly used external turning tools include straight external turning tools, 90° partial tools and 45° partial tools.
2. Outer circle: The head outer circle turning tool has better strength; it is often used for rough turning of the outer circle, and the 90° offset tool has a large lead angle, which is suitable for the outer circle, section and step; the 45° elbow turning tool is suitable for CNC turning. Smooth shaft with steps.
Application of CNC turning
CNC turning parts are used in a wide range of applications, mainly divided into automotive interior parts, aircraft interior parts, aerospace parts, prototype parts or mass production of complete prototypes, electronic parts, and so on.
Summarize
CNC turning is a way of machining industrial parts. It can flexibly provide CNC turning parts in small batches, and it is also a precise and time-saving process. CNCMF can provide a variety of CNC turning parts material selection and high-quality CNC turning services, and can provide fast and small batch CNC turning production. If you have any need for CNC turning parts, please contact us and look forward to your consultation.