C
Team,
A little help need, I am currently developing a PFMEA and in the document it was identified that the following has high RPN:
Sawing (RPN 126) - cutting of raw materials for specific measurement.
CNC Machining (RPN 80) - cutting of raw materials (precision) and casting.
Manual Machining - Lathe (RPN 80) - cutting of casting to form flanges
Problem - Dimensional or measurement error (oversized or undersized)
Tools use - caliper, micrometer and tape measure
Reference - Engineering Drawing (for dimensions)
Recommended Action - Perform sampling method by measuring 10th piece of cut parts.
Documents - fill in 1st Article Form
Machine - Semi-Automatic
Advantage - no oversized or undersized measurement escapee
Disadvantage - heavy documentation and operator inconsistency to fill up form
Suggestion - Measure 1st piece and last piece (but how can we guarantee that there is no measurement problem in the whole run since the start and end are to be recorded?)
Any valuable suggestion is highly appreciated.
Thank you and best regards.
A little help need, I am currently developing a PFMEA and in the document it was identified that the following has high RPN:
Sawing (RPN 126) - cutting of raw materials for specific measurement.
CNC Machining (RPN 80) - cutting of raw materials (precision) and casting.
Manual Machining - Lathe (RPN 80) - cutting of casting to form flanges
Problem - Dimensional or measurement error (oversized or undersized)
Tools use - caliper, micrometer and tape measure
Reference - Engineering Drawing (for dimensions)
Recommended Action - Perform sampling method by measuring 10th piece of cut parts.
Documents - fill in 1st Article Form
Machine - Semi-Automatic
Advantage - no oversized or undersized measurement escapee
Disadvantage - heavy documentation and operator inconsistency to fill up form
Suggestion - Measure 1st piece and last piece (but how can we guarantee that there is no measurement problem in the whole run since the start and end are to be recorded?)
Any valuable suggestion is highly appreciated.
Thank you and best regards.