About CNC Machining
What is CNC machining?
CNC machining (numerical control machining), is a process method for machining parts on a CNC machine tool. The process protocols for CNC machine tool machining and traditional machine tool machining are consistent in general, but have also changed significantly. The machining method of controlling the displacement of parts and tools with digital information. It is to solve the variety of parts, small batch, complex shape, high precision and achieve efficient and automated processing of the effective way.
Second, the characteristics of CNC machining
CNC machine tools are selected from the outset to have a complex surface of the aircraft parts as the processing object, to solve the ordinary processing methods difficult to solve the key. The biggest feature of CNC machining is the use of perforated tape (or tape) to control the machine tool for automatic processing.
1. Process concentration
CNC machine tools generally come with automatic tool changer, tool magazine, tool changing process is automatically controlled by the program, therefore, the process is more concentrated. Process concentration brings enormous economic benefits.
(1) reduce the floor space of machine tools, saving plant.
(2) reduce or no intermediate links (such as intermediate inspection of semi-finished products, temporary storage and handling, etc.), both time and labor saving.
2. Automation
CNC machine tool processing, no manual control of the tool, a high degree of automation. The benefits are obvious.
(1) the requirements of the operator is reduced.
An ordinary machine tool senior workers, not a short period of time can be trained, and a non-programmable CNC workers training time is very short (such as CNC turners need a week can, will also write a simple processing program). And, CNC workers on CNC machine tools to process the parts than ordinary workers on traditional machine tools to process the parts of high precision, time to save.
(2) reduce the labor intensity of workers: CNC workers in the processing process, most of the time is excluded from the processing process, very labor-saving.
(3) stable product quality: CNC machine tool processing automation, eliminating the fatigue of workers on ordinary machine tools, carelessness, estimation and other human errors, to improve the consistency of the product.
(4) high processing efficiency: CNC machine tools such as automatic tool changes make the processing process compact and improve labor productivity.
3. High flexibility
Traditional general-purpose machine tools, although good flexibility, but low efficiency; and the traditional special machine, although very high efficiency, but the adaptability of the parts is poor, rigid, poor flexibility, it is difficult to adapt to the market economy under the fierce competition brought about by frequent product changes. Just change the program, you can process new parts on CNC machine tools, and automated operation, good flexibility, high efficiency, so CNC machine tools can adapt well to market competition.
4. Strong ability
Machine tools can accurately process a variety of contours, and some contours in ordinary machine tools can not be processed. CNC machine tools are particularly suitable for the following occasions.
(1) not allowed to scrap the parts.
(2) new product development.
(3) the urgent need for the processing of parts.
So through the above, we understand that there are those parts are suitable for CNC machining?
Parts suitable for CNC machining.
1. General-purpose machine tools can not be processed parts should be used as the priority parts.
2. General machine tools are difficult to process, the quality of the parts should be the focus of choice of parts
3. General-purpose machine tool processing efficiency is low, the workers manual operation labor-intensive parts, can be in the CNC machine tools still exist in the rich processing capacity of the choice.
There are suitable for CNC machining parts, while there will certainly not be suitable for processing parts
Not suitable for CNC processing of the content of.
1. accounting for the machine adjustment time is long
2. Processing parts scattered, need to install several times to set the origin
3. The contour of the surface processed according to some specific manufacturing basis
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