The use of stamped parts is very wide. Thanks to the simple production method, a large number of products can appear on the commodity market. Measuring metal stamping parts is a more meticulous thing. Every detail must not be missed to ensure that the product is qualified and up to standard.

1. When measuring the hole position, record the measured value of the aperture in different angle directions. Generally speaking, the minimum value is retained. In the case of multiple measurements of the vernier caliper, in order to reduce the error, the small value must be eliminated, that is, The average values ​​vary greatly, so the average value can be used as a reference, but the maximum value is not practical.

2. In the case of surveying and mapping, in the absence of standard sample parameters, in addition to taking the average value of the measurement, the integrity of the actual section must be judged. Some minimum values ​​are caused by section incompleteness. Pay attention to avoid taking defective products by mistake during measurement. .

3. In addition, it can be deduced from the data which production process has a problem. For example, the wear of the punch will cause the defect and wear of the punching hole. At this time, the produced part is not suitable for measurement. In the process of record analysis, the tolerance value that can be referred to is the standard value of + -0.02mm. I guarantee that the wear resistance may increase a little.