Category Archives: SPC

In earlier articles, we talked about three statistical indicators for process capability: Cp, Ck, and Cpk. But some people may still feel unclear about what these really mean. Let’s use normal distribution charts to explain them in a simpler way.

Personally, Workingbear think this process capability improvement flowchart is quite well-organized, so I cleaned it up a bit and decided to share it with everyone. Please note: Before implementing Statistical Process Control (SPC), the process conditions must first be quantified. … Continue reading →

Process capability refers to the ability of a production process to consistently produce products that meet quality requirements under stable and fixed production conditions. To understand process capability, there are at least two key aspects we need to consider: A … Continue reading →

Workingbear has already spent a good amount of time explaining what Cp (Precision) and Ck (Accuracy, sometimes called Ca) mean, and what each represents. We’ve also learned that using Cp or Ck alone can give an incomplete picture when it … Continue reading →