Category Archives: SPC


Jul29
Process Capability Improvement Flowchart

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

Jul25
What Is Process Capability?

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

Jul23
Understanding Process Capability ─ Explanation and Formula for Cpk

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

Jul22
Introduction to Process Capability – Understanding Ck or Ca (Accuracy)

What Is Ck or Ca? Ck, which some people now refer to as Ca (Accuracy), represents how close a process output is to the target value. Using a target-shooting example: if someone fires six bullets and all land near the … Continue reading

Jul21
Introduction to Process Capability – Understanding Cp (Precision)

Understanding Cp as a Process Capability Indicator Cp (short for Precision) is a measure of how tightly a process is centered and how consistently it produces results. Using a target-shooting analogy, if someone fires six bullets and they all hit … Continue reading