Preliminary Process Capability Studies

Slide 221 of 241

Characteristics identified in the control plan

Usually 100 pieces minimum

May be 30 if run is less

Ppk 1.67 is acceptable unless otherwise specified

Ppk Š 1.67 requires action plan unless otherwise specified

Reference AIAG Fundamental SPC Reference Manual

1.0 at spec limit

+-3 sigma = 1.67
Allows ‘flop’ within spec limit

APQP Forum Discussions

	The. Deming PDCA Cycle	QMS Implementation	FMEA Information	APQP Information
Auditing Information	8-D Problem Solving	Statistics	Error Proofing (Poka Yoke)	Brainstorming
Identifying Waste	Pull Systems	Lead Time Reduction	Planned Maintenance	Quick Setup
Discovering Change	Process Capability - Cp vs. Cpk	Histogram. Animation	Process Loop Animation	Taguchi Loss Function
		Fishbone / Cause and Effects Animation