Aluminum precision parts and products are popular due to their low weight and beautiful appearance. They also find widespread use in industry and the essentials of daily life. People's demand for a wide variety of products is growing at an ever-increasing rate as a direct result of the relentless march of scientific and technological progress. As a result of this, the market demand for products made of aluminum alloy is also increasing at a rate that is comparable to the rate at which the technical requirements for these products are increasing. Aluminum alloy CNC processing manufacturers summarize the process skills in the processing process and the problems that need attention in aluminum CNC processing in order to meet the demand of people for the diversity and high quality of aluminum alloy shell products. This is done in order to meet the demand for aluminum alloy shell products.
1. Select the most milling parts online appropriate method of processing
Aluminum is frequently machined using a process called CNC cutting, which is both an efficient method of cutting and a common process.I am utilizing an end mill that is capable of cutting in multiple directions simultaneously, as well as one that can perform helical cutting and contour cutting interpolation.Create fewer holes using the same number of tools.
2. The ball end mill is able to collaborate with helical interpolation in order to process the tapered hole in a continuous manner.
Boring and chamfering can be accomplished with the use of helical interpolation drills and ball end mills, respectively. End mills with contour cutting interpolation can be utilized for the semi-finishing of holes and the machining of precision parts.In order to process a variety of threaded holes, threading end mills and helical interpolation can both be used in conjunction with one another.Tool interpolation is a technique that can be utilized in the processing of high-efficiency aluminum alloy precision parts that are inserted into holes of varying sizes that require precision.When using a milling machine with a high speed, the load that is placed on each individual tooth is comparatively light.As a consequence of this, a single coated carbide end mill can be utilized for high-speed as well as high-precision drilling in a wide variety of machining materials..
3. Determine the appropriate amount of cutting to do.
To effectively reduce machine wear, the operator has the ability to choose which cutting speed to use based on the material that is being machined, its hardness, the cutting conditions, the material type, and the depth of cut that is necessary.
4. Select cnc machining parts the appropriate instrument.
Angle of the Rake It is important to select the appropriate angle of the rake while still preserving the edge's strength.A sharp cutting edge can be ground on one side, cutting deformation can be reduced, chip removal can be made smoother, cutting resistance and cutting heat can be lowered, and tools with negative rake angles should not be used.
Back angle: The extent to which the back angle is worn and the quality of the machined surface are both directly influenced by the size of the back angle. When determining the relief angle, cutting thickness is an essential factor to take into consideration. Because the feed rate is high, the cutting load is high, and the amount of heat generated is high, the tool needs to have good conditions for heat dissipation in order to function properly during rough machining. As a result, a relief angle that is less extreme ought to be chosen. When the milling machine is finishing, it is necessary to sharpen the edge in order to reduce the friction that occurs between the flank surface and the processed surface. Additionally, in order to reduce the amount of elastic deformation that occurs, it is recommended that a larger relief angle be selected.
Helix angle: The helix angle should be selected to be as large as possible in order to make the milling machine as smooth as possible and to reduce the force that is applied to the milling machine. Reduce the approach angle to effectively improve heat dissipation conditions and bring down the average temperature of the treatment area. This can be accomplished by appropriately reducing the approach angle. The number of milling teeth should be decreased, and the space available for chip removal should be increased. Because the aluminum alloy material has a high degree of plasticity, the cutting deformation that occurs during processing is significant, and the chip space is significant as well. The number of teeth on the milling cutter should be kept to a minimum, and the radius of the bottom of the chip pocket should be made as large as possible. For instance, milling cutters with a diameter of 20mm or less have two teeth, while milling cutters with a diameter of 30mm to 60mm should have three teeth. This is done to avoid chip clogging, which can cause thin aluminum alloy parts to become deformed.
The roughness value of the tooth edge should be lower than Ra=0. 4um if it is to be considered fine grinding teeth. Before you start using a brand-new knife, you should give both the front and back of it a quick sanding with a fine whetstone to get rid of any burrs or teeth that are slightly jagged from the grinding process. Not only is it possible to reduce the amount of heat generated during the cutting cnc milling online process, but also the amount of deformation caused by the cutting is kept to a minimum.
Maintain stringent control over the standard for tool wear. Tool wear causes an increase in the surface roughness value of the workpiece, as well as an increase in the cutting temperature and an increase in the workpiece's deformation. Because of this, in addition to picking a tool material that has a custom cnc milling high resistance to wear, the wear standard should not be higher than 0. 2 millimeters. In the absence of this, the built-up edge can be easily produced. In order to avoid deformation, the temperature of the workpiece during cutting should in most cases be kept below 100 degrees Celsius.
5. Opt for a fitting that makes sense.
It is imperative that the components fully satisfy the requirements of the machine in order to cut down on unnecessary positioning errors, and specialized clamping tools should be chosen.Determine a processing path that makes sense, and then work to make that processing path as short as you possibly can in order to cut down on machine wear.Because the machining allowance is large and the cutting is intermittent in high-speed cutting, the milling machine will generate vibration while it is being used. This vibration will have an effect on the accuracy of the machining and the surface roughness.As a result, CNC high-speed cutting can typically be broken down into several distinct processes, including rough machining-semi-finishing, corner cleaning, finishing, and others.
Prior to finishing, secondary semi-finishing might be necessary for components that require a high level of precision. Following the completion of the rough machining process, the components are allowed to naturally cool in order to remove any residual internal stress and minimize any deformation brought on by the rough machining. It is important that the allowance that is left over after rough machining is larger than the amount of deformation. It is important that the finished surface of the part maintains the same level of machining tolerance throughout the process of finishing. 0. 2-0. 5mm is a good range to aim for; this helps to keep the tool stable while machining, significantly reduces the amount of cutting deformation, and obtains good surface processing quality, all of which contribute to the accuracy of the product.
