Re: Is zero defects possible?
Sorry for the typographical error.
What I meant was we are dealing with around 300 parts each having minimum 25 to 30 parameters that have to meet customer spec....
We maintain around 100-150 ppm for customer but at our final inspection stage and the different stages of process we are maintaining 5000 ppm.
a)How can we work towards zero defect?
b) Is zero defect only at customer end?
Thanks......
Don't overthink this. You can make zero defect a goal for any processes you want, and it can be internal or at the customer end. The external customer end might be the first goal to achieve.
How to work toward it is by controlling each process and process output better.
1. Define each process clearly. What criteria are important? (cl 4.1.c)
2. Align the criteria between each supplier and customer (internally). (cl 4.1.b)
3. Measure these criteria (cl 4.1.e). Track your performance for each. Communicate to the people involved so they can see how they are doing. Press for improvements.
4. Check the failures in each process. Eliminate special causes. Investigate root causes and eliminate them. Train people to higher skills so they are PROFICIENT, not merely competent.
5. Continue to do this, over and over. It is the PDCA cycle, over and over. A continuing spiral of improvement.