#32 Statistical Process Control


Statistical Process Control

Statistical process control is defined as the use of statistical techniques to control a process or production method. SPC tools and procedures can help you monitor process behavior, discover issues in internal systems, and find solutions for production issues.

Let's first look at product definitions.

As we can see from the product definitions, a bicycle manufacturing company produces a bike frame semi-product.

Tubing steel is cut and welded. Then the painting process starts.

In the Control Characteristics tab, you see the Control characteristics of the semi-product and the controls to be applied.

The IPC check box indicates that in-process control will be performed. Nominal and Tolerance values must also be entered for SPC.

On the SPC screen, the product, lot number, and machine information in the header information have been entered.

In the Process Control Data tab, we have to enter the measurement values of the samples we take at certain time intervals.

In the Statistical Data tab, USL, Nominal and LSL values come from the product definition.

All other values in this table are calculated from sample measurements.

X-bar chart tab.

R chart tabs.

And customizable report.