Discussion on the application of grouping techniques in control chart modeling

grouping techniques;  process;  Control charts;  Quality control

Aiming at the problem of insufficient data quantity in the quality control modeling of multi-variety and low-batch production process, based on the similarity principle of grouping technology, it is proposed to organically integrate the current data of the processing process with the historical data, and establish a data sample model of statistical quality control of the multi-variety and small-batch production process through standard transformation, so as to realize the purpose of monitoring the processing process by using the control chart. The results show that this method is simple and easy to implement, and it is one of the effective ways to solve the insufficient amount of data in the quality control modeling of multi-variety and low-volume production processes.