Control limit calculation

• In - depth analysis of the principle of Xbar - R control chart, diagnosis, and the way to ensure product quality

  First, introduce that its essence is to lock the process stability with "dual indicators" (mean and dispersion)...
  R chart (Range chart)X bar

• Full analysis of the design, use, installation and compatibility of the Excel-based x - Rs control chart tool

  This tool is a lightweight Excel template for SPC, which can lower the technical threshold for small and medium-sized enterprises to introduce SPC...
  Automatic mapping functionLightweight Excel template