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Factors Affecting the Quality of CNC Machining Precision Parts

Today, mechanization and automation have become mainstream in industry development. In the application process of machine equipment consisting of various parts, problems are prone to occur due to the lack of coordination or cooperation of certain parts. Raw material specifications, performance, material usage, machine vibration, clamping pressure or looseness, elastic deformation process system, worker operation, detection methods, and inspector errors all have an impact on the quality of processed products. When we talk about the quality of work prototypes, several main factors come to mind.


Operator impact on the quality of CNC machining precision parts


As CNC machining machines become more and more complex, there is a large difference in the level of programming and operating personnel skills. Combining human superior skills with computer information technology can maximize the use of the machine. Therefore, machine operators must be familiar with equipment performance. If the operator does not have enough understanding of the equipment performance, they may make mistakes, which will accelerate the wear and tear of machine components and even cause machine damage. Therefore, this will require a lot of maintenance costs and a longer maintenance time. CNC machine tool operators must understand and master the machine tool manual and its operating precautions to restore the equipment to its original accuracy and ensure civilized production and safe processing.


Machine impacts on the quality of CNC machining precision parts


A complete CNC machining system is composed of machine tools, workpieces, fixtures, and cutting tools. The processing accuracy is related to the accuracy of the entire process system. Various errors in the process system will be reflected as different forms of machining tolerances under different circumstances. CNC machine accuracy is an important factor affecting the quality of prototype parts. When the machine precision is poor, and certain parts are damaged or the clearance between parts is not properly adjusted, various defects will appear in the prototype during the CNC machining process. Therefore, we not only need to choose the appropriate turning angle, cutting amount, and CNC machining method but also understand the influence of machine tool accuracy on the quality of OEM precision CNC machining. The maintenance of the machine directly affects the machining quality and production efficiency of the prototype. To ensure working accuracy and prolong its service life, all machines must be properly maintained. Usually, after the machine runs for 500 hours, first-level maintenance is required.


CNC machining methods impact on the quality of CNC machining precision parts


Service CNC has many methods of machining, and cutting processing is the most common one. During the cutting process, the workpiece undergoes force and heat changes, and the physical and mechanical properties of the metal material will also change slightly, so the choice of cutting tool is very important. Generally, the material for making the cutting tool should be selected according to the material of the machined workpiece. Otherwise, the surface of the workpiece will form burrs related to the cutting tool, which may increase the roughness of the workpiece surface and reduce the surface quality. In addition to the cutting tool factors, cutting environment and cutting processing conditions, such as cutting amount and cutting lubrication, also impact the machining quality. In the CNC machining process, the machining system is the overall commander of the entire cutting process. All CNC machining processes are executed according to the system, so the accuracy and rigidity of the machining system are also one of the main factors affecting the machining quality.


Material impacts on the quality of CNC machining precision parts


CNC machining materials are generally divided into plastics and metals. Each material has its own characteristics. It is also important to select the appropriate materials according to the requirements and applications of the workpiece during the machining process. The consistency of the material must be good; otherwise, the quality of the same part may differ. Try to keep the material from deforming as much as possible when the material hardness is appropriate. These are all important prerequisites for evaluating quality.

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