SPC charts are primarily used for what purpose in manufacturing?

SPC, or Statistical Process Control, charts are specifically designed to monitor and control a manufacturing process by using statistical methods. The primary purpose of SPC charts is to identify and improve the quality of the products being manufactured by tracking variations in the process. By analyzing data points over time and identifying trends or shifts, manufacturers can determine whether their processes are stable and in control or if corrective actions are necessary to maintain product quality.

Using SPC charts, manufacturers can detect process inefficiencies, uncover potential issues before they result in defective products, and ensure that processes operate within specified limits. This proactive approach to quality management supports continuous improvement efforts and helps maintain high standards, making quality control the central focus of SPC charts. The use of such charts shifts the emphasis from detecting quality issues after they occur to preventing them from occurring in the first place.