Process classification of CNC machining parts

Process classification of CNC machining parts

The process is to change the shape, size, relative position and nature of the production object on the basis of the process, so as to make it into finished or semi-finished products. It is the detailed description of each step and each process. For example, as mentioned above, rough machining may include blank manufacturing, grinding and so on, and finish machining may be divided into turning, fitter, milling machine, and so on. Each step requires detailed data For example, how much roughness and tolerance should be achieved. According to the product quantity, equipment conditions and workers’ quality, technicians determine the process to be adopted, and write the relevant contents into process documents, which are called process procedures. This is more targeted. Every factory may be different, because the actual situation is different. Generally speaking, the technological process is the program, the processing technology is the detailed parameters of each step, and the technological procedure is the specific processing technology compiled by a factory according to the actual situation.

Machining process includes: five axis machining, ceramic machining, chemical numerical control machining, electrical discharge machining, electrical discharge drilling, numerical control titanium, emergency construction / on-site machining, casting machining, grinding, micro machining (micro parts machining), plastic machining, turning, spiral machining, Swiss turning, CNC machining, etc.

The reduction of loading times avoids the error accumulation caused by positioning datum conversion. At the same time, most of the current turn milling compound processing equipment has the function of on-line detection, which can realize the in-situ detection and precision control of the key data in the manufacturing process, so as to improve the processing accuracy of the product; the high-strength integrated bed design improves the gravity processing ability of the difficult cutting materials; the high-strength integrated bed design improves the processing ability of the hard cutting materials; The machine is equipped with an automatic feeding device, which can realize automatic feeding for continuous operation and basically realize the assembly line operation of a single machine.

Reduce floor space and production cost.

Compact and beautiful shape design, improve the space utilization, maintenance and repair more convenient, so that customers get the maximum satisfaction; Although the single unit price of turn milling compound processing equipment is relatively high, due to the shortening of manufacturing process chain and the reduction of equipment required for products, as well as the reduction of the number of fixtures, the floor area of workshop and equipment maintenance costs, it can effectively reduce the investment, production operation and management costs of the overall fixed assets.

Shorten the manufacturing process chain and improve production efficiency.

It can install a variety of special tools, new tool layout, reduce the tool change time, improve the processing efficiency, turn milling composite processing can achieve a clamping to complete all or most of the processing procedures, thus greatly shortening the product manufacturing process chain. In this way, on the one hand, the auxiliary production time caused by the change of clamping is reduced, and the fixture manufacturing cycle and waiting time are also reduced, which can significantly improve the production efficiency.

Flexible shaft machining

When turning long and thin parts that cannot be supported in the middle, turning milling can prevent the parts from bending. Compared with turning, in theory, milling can cut parts under very small pressure. But in fact, a lot of technical problems need to be solved.

Long time processing

In the cutting of difficult to machine materials, the service life of a turning tool is very short, and the milling cutter can be used for a long time because it distributes the cutting load through multi edge cutting. Because the milling cutter has a long service life, it can save the trouble of changing the cutter many times during cutting.

Discontinuous cutting

Turning tools are usually not very good for discontinuous cutting, while milling tools can do very well. Milling is often defined as a kind of discontinuous cutting. Therefore, in the case of discontinuous cutting, it should be thought of turning to turn milling.

Excellent chip breaking process

It has been proved by many machining practices that turning milling instead of turning can eliminate the “bird’s nest” chip phenomenon in the past. Because the milling process with the advantage of natural chip breaking is combined in cutting, the continuous chips are broken into small pieces which are easy to be eliminated

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