Jimda decrypts how to define precision machining

We may have different understandings of precision machining. How to understand precision machining? How to define precision machining? What is the definition of precision machining?

Jimada believes that the definition of precision machining is to complete the final processing of each main surface according to steps and procedures, including workpiece parallelism, surface finish, surface perpendicularity, surface hardness, etc., so that the processing accuracy and surface quality of the parts can reach The process required by the drawings.

Parallelism requirements

The so-called parallelism requirement refers to the tolerance requirement around the workpiece. For example, for a rectangular workpiece, the thickness of the four corners of the workpiece is required to reach a certain tolerance range. If the thickness of the four sides measured does not meet the tolerance requirements, the parallelism requirements will not be met. This requires re-adjustment of the workpiece. The problem may occur in the suction cup of the grinding machine. The suction cup is worn out due to excessive use, which leads to errors in parallelism; it may also be that the grinding wheel is not repaired, or the grinding wheel is cracked or chipped, and then the grinding wheel must be re-grinded. ; It may also be that the suction cup has not been cleaned up, so it is necessary to clean the suction cup again and carefully clean it; or it may be that the workpiece has not been trimmed and burrs have appeared.

Verticality requirements

The so-called verticality requirement is to require the side and ground of the workpiece to meet tolerance requirements. The best understanding is the legitimate body. From the perspective of the number axis, it is divided into three sides, XYZ, and generally requires XZ and YZ to meet the tolerance requirements. The error appears to be roughly the same as the parallelism requirement. Generally, it can be handled in accordance with the parallelism requirements.

other requirements

For example, finish. It is required to achieve, such as mirror effect.

The above is Jimda's understanding of precision processing machinery. Our views may not represent everyone's views. Jimda provides professional manufacturing of non-standard metal parts, welcome everyone to inquire and purchase: 0512-55101588.