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With the rapid development of social production, science and technology, various products have become increasingly sophisticated and require frequent modification. The products that need to be processed by milling machines are also involved in a wider range of industries. Milling machine parts produce in Weimi are used in automotive industry, construction industry, medical equipment, etc.

CNC milling machine processing is a common cold metal working method. The difference from turning is that during milling, the tool rotates at high speed under the driving of the spindle, while the workpiece is relatively stationary. CNC can process complex shapes and features it’s mainly vertical, horizontal and gantry milling machines.

CNC milling machine processing is also one of the most commonly used processing technologies of Weimi. It is the process of removing material from a workpiece with a rotating tool. CNC milling machines are usually classified according to the number of axes. Weimi has a total of 72 CNC milling machines, including 3,4 and 5 axis and other commonly used precision machinery. It can process work piece of the size of 850 * 500mm.

Tools are more complex and are generally multi-edged. Milling can process flat surfaces, grooves, spiral, tooth and forming surfaces.

It also could be milling the external diameter on special milling machines. Depending on the milling method, the milling cutter completes the cutting in different ways. In horizontal milling, the plane is formed by the cutting edge on the outer surface of the milling cutter; in vertical milling, the plane is formed by the end edge of the milling cutter. Milling results in higher cutting speeds and therefore higher productivity.

The milling machines have a high processing accuracy and stable processing quality. The automatic tool changing function of the CNC milling machine can very effectively reduce the number of clamping times of the workpiece, reduce or eliminate positioning errors caused by multiple clamping, and improve machining accuracy. Also the automatic tool change function of the CNC milling machine can very conveniently and effectively reduce the positioning and tool setting errors, and can complete the parts of each part in the process of one clamping and one-time tool setting.

Milling machine processing can also improve economic benefits. A CNC milling machine is a machine tool that concentrates the functions of milling, drilling, tapping machines and other equipment. Therefore, Weimi often chooses milling machines to customize those parts that require more precision and larger product sizes to meet strict tolerances.

Common problems and how to solve them when processing parts on CNC milling machines?

1. Processing plane is not flat.

The main problem is that during the cutting oil performance can not meet the processing requirements. To solve the problem we use full down milling machining method and a special, high performance cutting oil.

2. Burrs on the surface or sides after finishing.  

Day by day requirements about surface processing become higher and higher. Nowadays it’s not acceptable to leave any burrs on the material. If the workpiece is modified with a file, the accuracy and size of the workpiece will also be affected. It can be used directly after milling, and there is no need for subsequent grinding. However, in actual production there will be a lot of burrs and batches.

To solve this problem, we must pay great attention to the tools that we are using. They must be well prepared and sharp enough. In addition, we must also plan the tool path and increase the secondary finishing path. We process the surface first, then the sides, and then the surface. This can ensure that there are no burrs and sharp edges, which is useful for workpieces that cannot be polished.

3. Unique shape workpieces

During finishing of some unique-shaped workpieces the software very often has fitting errors. Sometimes if the calculation error is too large, it will cause deformation of the workpiece and affect the appearance. To solve this problem, you must look deep into software. The error is controlled, and this value is relatively reasonable. It does not affect the calculation speed and will not cause deformation of the workpiece.

Weimi has many years of experience in the processing of CNC milling machine parts. We are well experienced in product customization. We provide a great services for customers from all around the world! We would be more than happy to take care about your project!