Processing speed and feed rate, feed rate and cutting depth are three variables of economic processing in Dongguan CNC plant. Other quantities are tapping and tool material, coolant and tool geometry, speed of metal removal and power required depending on these variables. Cutting depth, feed rate and cutting speed are mechanical parameters that must be established in any metal working procedure. They all affect the force, power and speed of metal removal. The cutting speed can be defined as the distance between two adjacent grooves or the needle whose speed recording surface diffuses radially at any instant after one revolution. The cutting depth is the depth of entry and groove.
Turning in the center of lathe
The basic operation of Dongguan CNC processing plant on the motor lathe has been introduced. Those operations with a single point tool on the outer surface are called turning. In addition to drilling, reaming and grinding of internal surfaces, the operation is also performed by a single point tool. All machining processes including turning and boring can be classified as roughing, finishing or semi finishing. Finishing is to remove a large amount of material as quickly and effectively as possible, and a small part of the material left on the workpiece is used for finishing. Finish machining is to obtain the final dimension, shape and surface accuracy of the workpiece. Sometimes, semi finishing leaves a predetermined amount of material for finishing, which precedes finishing.
Generally speaking, long workpieces are supported by one or two lathe centers at the same time. Tapered holes, so-called center holes, are drilled at both ends of the workpiece to suit the center of the lathe - usually along the axis of a cylindrical workpiece. The end of the workpiece close to the frame is usually supported by the center of the tailstock, and the end close to the main bearing is supported by the center of the main bearing or clamped by the claw plate. This method can firmly tighten the workpiece and smoothly transfer the force to the workpiece; The auxiliary support provided by the chuck to the workpiece can reduce the chatter trend during cutting. If the chuck can be used to support the workpiece carefully and accurately, the accurate results can be obtained.
Dongguan CNC processing plant can get very accurate results by supporting the workpiece between two centers. If one end of the workpiece has been machined, the workpiece can be turned. When the other end is machined on the lathe, the center hole is filled with the accurate positioning surface and the supporting surface to bear the weight of the workpiece and resist the cutting force. When the workpiece is removed from the lathe for any reason, the center hole will accurately return the workpiece to this lathe or another lathe or a cylindrical grinder. The workpiece is not allowed to be clamped on the main bearing by chuck and lathe center. However, the first thought is a method to quickly adjust the workpiece on the chuck, but this is not allowed, because it is impossible to be clamped by the chuck and supported by the center of the lathe at the same time. The adjustment provided by the lathe center will not last, and the pressure of the claw plate will damage the center hole and the lathe center, even the lathe spindle. Floating chuck provides an exception to the above statement. It is almost completely used in high production work. These chucks are real work drivers and are not used for the same purpose, such as ordinary three jaw and four jaw chucks. For large diameter workpieces, there are two centers, and it is better that they are clamped at the tail of the main bearing by the panel to get the energy conversion smoothly; Many lathe chucks can not convert enough energy, although they can be used as special energy conversion.
Introduction to machining
As a method of shape generation, machining is the most common and important method in all manufacturing processes. Machining process is a process of generating shape. In this process, the driving device makes some materials on the workpiece be removed in the form of chips. Although in some cases, the workpiece without support, the use of mobile equipment to achieve processing, but most of the machining is done by both supporting the workpiece and supporting the tool equipment. Small batch, low cost. Machining has two applications in manufacturing. Is casting, forging and pressure work, produce every special shape, even a part, almost always have higher die cost. The shape of the weld depends largely on the raw material. By using the equipment with high total cost but no special mould, processing is possible; Starting from almost any form of raw material, as long as the external size is large enough, the shape is designed by any material. Therefore, machining is the preferred method. When producing one or several parts, or even in mass production, the design of parts logically leads to casting, forging or stamping products. High precision, surface precision.
The second application of machining in Dongguan CNC processing plant is based on possible high precision and surface precision. If mass production is carried out in other processes, many low volume parts will produce low but acceptable tolerances. On the other hand, many parts produce general shapes by some large deformation processes, and are only machined on selected surfaces with high accuracy. For example, in-line processes rarely produce any machining other than in any way, and holes in parts may be machined immediately after pressure operation