What does CP and Cpk mean?

process capability indices
Cp and Cpk, commonly referred to as process capability indices, are used to define the ability of a process to produce a product that meets requirements. In other words, they define what is expected from an item for it to be usable.

What is good CP and Cpk?

In general, the higher the Cpk, the better. A Cpk value less than 1.0 is considered poor and the process is not capable. A value between 1.0 and 1.33 is considered barely capable, and a value greater than 1.33 is considered capable. But, you should aim for a Cpk value of 2.00 or higher where possible.

What is a Cpk study?

Process capability index (Cpk) is a statistical tool, to measure the ability of a process to produce output within customer’s specification limits. In simple words, it measures producer’s capability to produce a product within customer’s tolerance range.

What does a Cpk of 1.67 mean?

Excellent, Capable
CPK >1.67 (Excellent, Capable)

Is CPK a good measure of capability?

What Cpk Value Should You Aim For? In general, the higher the Cpk, the better. A Cpk value less than 1.0 is considered poor and the process is not capable. A value between 1.0 and 1.33 is considered barely capable, and a value greater than 1.33 is considered capable. But, you should aim for a Cpk value of 2.00 or higher where possible.

When to use CPK?

Cpk is one of the common metrics used for measuring process capability. You use it to measure whether your product is within the limits set by the customer . It is known as the ‘Process Capability Index’.

What is a good CPK level?

Creatine phosphokinase (CPK) is an enzyme that can be found in the heart, brain and skeletal muscle. A high level of CPK is not a good sign and is an indicator of heart attacks, strokes and other serious diseases.

What is CPK statistics?

Process capability index (Cpk) is a statistical tool, to measure the ability of a process to produce output within customer’s specification limits.