CNC precision machining is index control, write into the program after the design drawing first, then connect the computer numerical control machine tool, through the programming to control the operation of the CNC machine, finish machining of precision, CNC precision machining is mainly suitable for small batch, many kinds of artifacts processing, precision machining, it USES material, has strict requirements,Not all materials are suitable.
Precision machining, not what materials can be precision machining, such as some materials too hardness if it exceeds the hardness of the machining parts, some special materials are not suitable for precision precision machining.The first is the requirements of the hardness of the material, for some occasions, the higher the hardness of the material, the better, but limited to the hardness requirements of the machining parts, the processing of the material can not be too hard, if it is hard than the parts can not be processed.Secondly, the material is moderate in hardness and softness, at least a level lower than the hardness of the parts. At the same time, it also depends on what the role of the processing devices is to do, and reasonable selection of materials for the parts.
① greatly reduce the number of tooling, processing complex shapes of parts do not need complex tooling.
If you want to change the shape and size of the parts, you only need to modify the parts processing program, which is suitable for new product development and modification.
② The machining quality is stable, the machining accuracy is high, and the repetition accuracy is high, which can meet the machining requirements of aircraft.
③ The production efficiency is higher in the case of multiple varieties and small batch production, which can reduce the time of production preparation, machine adjustment and process inspection, and reduce the cutting time due to the use of the optimal cutting amount.
④ It can process complex surfaces difficult to process by conventional methods, and even some unobservable processing parts.
The disadvantage of CNC machining is that the cost of machine tool equipment is expensive, and maintenance personnel are required to have a higher level.
After rough machining self – test before finishing.
After finishing, the workers should self-check the shape and size of the processing parts: check the basic length and width of the vertical plane of the processing parts;
To measure the base point size marked on the drawing of the machining part of the inclined plane, the workers can remove the workpiece after self-checking and confirming that it conforms to the drawing and process requirements and send it to inspectors for special inspection.
Post time: Jul-07-2021