In addition to significantly increased cutting speed and feed speed when compared to conventional cutting, die casting defects causes and solutions CNC high-speed cutting has a cutting mechanism that is distinct from that of conventional cutting. This is in addition to the significantly increased cutting speed. Because of this, it is possible to avoid the production of electrodes as well as the labor-intensive process of electric machining. This is made possible by the fact that. In addition to this, the fitter is required to do a significantly reduced amount of grinding and polishing now. The mold only needs to be clamped once for the high-speed milling CNC machining center in order to complete the multi-step processing that is being performed on it.
1.The majority of machine tools make use of gray cast iron that is of high quality, high rigidity, and high tensile strength as the material for the supporting component.Gray iron is another name for this kind of cast iron, which is also known as gray iron.In addition, certain manufacturers of machine tools reinforce the base of the machine by incorporating high-damping polymer concrete in order to improve the machine's resistance to vibration as well as its thermal stability.The stability of the machine tool can be significantly improved by taking a number of important steps, some of which include incorporating a closed bed design, an integral casting bed, a symmetrical bed structure, and densely distributed reinforcement ribs.Aside from that, it's also important to make sure that the ribs are spread out evenly.the rotational axis that runs through the middle of a machine tool.
The capability of the spindle on the high-speed machine tool to perform effectively is a necessary condition for high-speed cutting; however, it is not sufficient for accomplishing high-speed cutting on its own to achieve high-speed cutting.The amount of compressed air in the main shaft or the cooling system is responsible for ensuring that the axial gap between the tool holder and the main shaft does not exceed 0.005 millimeters in measurement. If either of these factors is inadequate, the axial gap will be too large.Because of this requirement, high-speed spindles frequently make use of a variety of structural forms, including magnetic suspension bearings, hot-pressed silicon nitride (Si3N4) ceramic bearings, hot-pressed silicon nitride (Si3N4) ceramic bearings, hydrostatic bearings, air static bearings, and air static bearings.Lubrication is typically accomplished by employing a number of different technological processes, such as oil-air lubrication, jet lubrication, and a few others. This is done in order to achieve the desired results.
die casting mould 3. The speed range that falls between 20 and 30 meters per minute is the one that is utilized the majority of the time at this point in time.
(2) A noticeable and respectable rate of advancement. If high-speed machining of three-dimensional complex curved surface profiles is to be accomplished, it is necessary for the drive system to have good acceleration characteristics. In addition to this, you will need a high-speed feed drive (the fast forward speed is approximately 40 meters per minute, and the 3D contour processing speed is 10 meters per minute), which is able to accelerate to 10 meters per second at 0. 4 meters per second and decelerate to 0. 4 meters per second. The fast forward speed is approximately 40 meters per minute, and the 3D contour processing speed is 10 meters per minute. Despite their substantial size, the leads on these screws are relatively short.
4.Some of the most important requirements for high-speed machining of molds by means of CNC systems include the following:
(1) A high-speed digital control circuit that includes either a 32-bit or 64-bit parallel processor and a hard disk that has more than one gigabyte of storage space available for use.
(2) The capability of controlling both the rate at which the vehicle is moving die casting China forward and its acceleration; the feature of the digital drive system known as "creep control."
(3) An enhanced method of interpolation that provides greater geometric precision, accurate sizing, and a surface of superior quality.
(4) It is absolutely necessary to have a buffer register that has a large capacity and is able to read multiple program segments in advance while simultaneously ensuring that their integrity is maintained.This makes it possible to take corrective actions in a timely manner, such as adjusting the feed speed, in the event that the shape (curvature) of the machined surface changes. One example of this would be if the surface were to become flatter.This helps to prevent cutting that is unnecessary or excessive.In addition, the high-speed cutting of molds imposes stringent requirements on the maximum rate at which data can be transmitted. This is a requirement that must be met.2 kilobytes, but many modern machining centers use Ethernet LAN for data transmission, which can achieve speeds of up to 200 kilobytes per second. The older machining centers only had 2 kilobytes.Older machining centers only had 2 kilobytes of memory at their disposal.
5. The provision of lubrication for moving aluminum alloy die casting parts as well as cooling for those parts
In high-speed machining, tools made of coated carbide are used because these tools do not need to have cutting fluid applied to them, despite the fact that they are operating in high-speed and high-temperature environments. This is because these tools are designed to withstand the extreme conditions of both environments.In addition to this, the capability of these tools to cut has been significantly enhanced.The following factors are responsible for this result:The milling spindle rotates at a high speed, which means that the cutting fluid must first overcome the enormous centrifugal force in order for it to reach the cutting area; even if it does overcome the centrifugal force and enter the cutting area, it may evaporate immediately due to the high temperature in the cutting area, and the cooling effect is either minimal or even nonexistent; at the same time, the cutting fluid will cause the temperature of the cutting edge to change dramatically.This method may involve the utilization of high-pressure gas in order to swiftly blow away the cutting that is produced in the cutting area. This is done in order to achieve the desired result.As a consequence of this, a sizeable portion of the heat generated by the cutting process might be removed.At the same time, the atomized lubricating oil is able to form a very thin microscopic protective film on the edge of the tool as well as on the surface of the workpiece. This helps to prevent any damage from occurring.This film has the capability to effectively improve the surface quality of the parts while also extending the life of the tool by which it is applied.