What are the difficulties in CNC machining of aluminum cavity?

With the continuous advancement of social science and technology, precision parts processing enterprises are also constantly improving processing equipment. In recent years, the wide application of aluminum cavity CNC processing has brought great benefits to enterprises. When machining parts with aluminum cavity cnc, you only need to compile the part graphics, process parameters, and processing steps in the form of digital information into a program code and input it into the machine tool control system, and then convert it into a driving servo mechanism after it performs arithmetic processing. Command signal, so as to control the coordinated actions of various parts of the machine tool, and automatically process parts. It is not difficult to see the intelligence and convenience of aluminum cavity cnc machining, but even a machining master with many years of experience will encounter some difficulties. The author understands from the master that the main difficulties faced by aluminum cavity cnc machining at this stage are There are the following aspects:

1. In the process of aluminum cavity CNC machining products, when the height direction size changes greatly, first do not adjust the depth wear tool compensation, first check whether there is aluminum slag inside the tool holder and the spindle, and then add wear tool compensation after confirming that there is no slag .

2. When using the jaws to clamp the processed products, the thickness is different, the outer dimension is thinner, and the inner dimension is thicker. This is the clamping of the outer jaws to lift the product up. Pay attention to whether the movable parts of the jaws are too loose. After locking it, the problem of different product thicknesses can be solved.

3. CNC is prone to taper when machining deep holes with precision requirements. Especially when the depth of the hole is long, it is difficult to guarantee the top and bottom. You can open the rough and leave a small margin before machining with a boring tool.

4. When processing products with high surface finish requirements, the roughness of the knife pattern is difficult to meet the customer's requirements. At this time, the large surface can be equipped with PCD knife pellets, and the small surface can be customized with PCD flat knives to improve the surface finish.

5. 304 stainless steel material, it is easy to wear the tools during processing, the cold cutting fluid can be changed to oil cooling, which can improve the service life of the tools. At the same time, the tapping diameter of aluminum is small, and the wire tap is easy to break, and oil-cooled cutting can also be used.

6. Corner snapping knife When a snapping knife is found at the corner of the product, first analyze the size of the corner of the product and use a tool smaller than the R-angle of the corner. It can also be solved by reducing the spindle speed.

7. There are burrs on the chamfer. When it is found that there are burrs after the chamfering of the product, first check whether the tool is worn or not. If the tool is intact, check the depth and range of the chamfer. Generally, both aspects can solve the problem of chamfering burrs.

8. Clamping Clamping is a frequent problem in CNC machining. On the one hand, it may be that the operator does not blow clean the product or tooling during clamping. This can be accomplished through enhanced training. On the other hand, it may be that the clamping product has a larger contact surface, which can be solved by replacing the steel jaws. It is also possible to place the work device in the forward direction of the oil pipe when adjusting the machine, so that it is easy to clean up the residual material and reduce the pinch injury.

Aluminum cavity CNC machining is a high-precision, high-efficiency automatic machine tool. The use of aluminum cavity CNC processing enterprises can improve processing efficiency and create more value. It has got rid of the backward processing technology. CNC processing has become a part of the manufacturing industry. Big pillar, more and more processing companies are now using this kind of processing equipment.

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