How to Control Dimension During CNC Machining?

CNC is short for Computer Numerical Control, which is a manufacturing process in which programmed computer software dictates the movement of corresponding tools and machinery, which carry out the dimensional tasks as specified, much like a robot. There are many kinds of CNC machining, such as milling, lathe, turning, drilling, and tapping, etc. 

Accuracy would be the most valuable feature for CNC machining, so how do we control the dimension during the process?

Choose a high precision machine

With the improvement of product design requirements and the development of high-speed and high-precision machining technology, the quality of parts, the processing speed and procedures have been greatly improved.

Use a suitable cutting tool

Proper use and choice of tool would be an important factor affecting the quality of CNC machining. Carbide cutting tools are more and more widely used, high-speed processing of cemented carbide coating will replace most of the steel front tool, including reamers, ball-end knives, boning knives and other simple tools, carbide coating will be at high-speed Processing tool materials play an important role, applied to most of the conventional processing areas.

Use suitable chuck holders
With the use of machining center, also rendered the relevant tools upgraded. In particular, the quality of the tool on the CNC machining, the impact of the shank will become prominent. In the rotary tool processing system, in order to ensure the realization of tooling performance, it’s a must to keep the tight connection between chuck and machine.

CNC process program

In the high-speed and high-precision machining process numerical control program design is mentioned the importance of the importance of the whole process must be controlled, any errors will have a serious impact on the quality of the parts, the process will be on the quality of the program To a decisive role. CNC machining process design can be considered from the rough parts to the shape of a part of the processing process between the state of the control program. Good process plan throughout the design process is more difficult, need to go through the practice of summary and modification can be obtained in the design process to be considered along with much information, the relationship between the information and extremely intricate, which must be relied on the experience of the operator. Therefore, the quality of the design process scheme depends mainly on the experience and level of technical staff.