not sure what you mean by "prevent any rejected parts"...are you asking for a sampling plan that will only accept the lot when there are no defects in the lot?
in any case you must give us at least the defect rate you want to ACCEPT 95% of the time (or some other confidence level, 95% is typical). This is the AQL. If your Cpk value is OK with you you might want to use this as your AQL level...this means you will accept most lots made at this defect rate.
On the other hand if you want to ensure that you REJECT a certain defect rate 95% of the time, you are stipulating a RQL.
so....we need you to stipulate either an AQL, RQL or even both.
in any case you must give us at least the defect rate you want to ACCEPT 95% of the time (or some other confidence level, 95% is typical). This is the AQL. If your Cpk value is OK with you you might want to use this as your AQL level...this means you will accept most lots made at this defect rate.
On the other hand if you want to ensure that you REJECT a certain defect rate 95% of the time, you are stipulating a RQL.
so....we need you to stipulate either an AQL, RQL or even both.