Tolerance requirement for mold components
Public: 2019-10-08 10:15:37 Views: 213Anyone who realizes the mold accessories may know that no matter what kind of mold parts, no matter how many years of processing manufacturers, it' s impossible to eliminate the tolerance of the mold parts, could only make the tolerance as fine as possible. Therefore, how to grasp the tolerance requirement of mold parts is a discussible issue.
1. Processing economic tolerance
Since there are many factors affecting the machining tolerances during the machining process, the tolerances that can be achieved by the same machining method under different working conditions are different. Careful operation, fine adjustment, suitable cutting parameter could improve the processing precision, but it will lower the productivity and increase processing cost.
2. The original error
There are lots of different original error, including geometric error for process system, positioning error, processing error caused by mechanical deformation of process system, process error caused by thermal deformation of the process system, the deformation caused by the redistribution of the stress in the workpiece, principle error, adjustment error and measurement error, and etc.
3. Methods for studying machining tolerances
A. Research methods for machining tolerances: analytical calculation methods and statistical analysis methods.
B. The radial circular run-out of the main shaft while using sliding bearing