Analysis and Actions on Vendor Rating for Rejection Issues
Explore monthly rejection analysis and action plans for vendor rating improvement. Get insights on common defects, simulation tests, and root cause analysis for resolving rejection and return issues from customers.
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Presentation Transcript
Monthly rejection analysis and Actions on vendor rating, Monthly rejection analysis and Actions on vendor rating, Customer rejection / returns Customer rejection / returns Supplier Name:- ANANT ENTERPRISES Part category:- Bottom case F/AE/QA/53
Action plan for common defect on following parts Part Name:- K0LA Drum Defect:- Blow hole F/AE/QA/53
Defect phenomenon in K0LA DRUM F/AE/QA/53
STUDY OF CAUSE & SIMULATION TEST STUDY OF CAUSE & SIMULATION TEST Sr. No. 4M Probable causes Fact verification Test Result Remark 1 Operator skill Skilled operator. Found ok Ok Man 2 Operator process Knowledge Found ok Ok Operator have knowledge of process 1 Casting solidification timer Solidification time 100+10 second 100 sec Ok Die temp veriation Die temp found within specification. 359 C Ok 2 Machine Ejection not proper Casting ejection done smoothly Found OK Ok 3 Blow hole open after buffing on ingate near oil seal OD. Shrinkage feeding not proper Metal turbulence Not OK 4 1 Die cleaning process Die cleaning done as per decided frequency Found ok Ok 2 PM done as per the PM check sheet. Found ok Ok Die maintenance Method 3 Die coating Die coating done properly Found OK Ok 4 Air vents cleaning Air vents found OK Found OK Ok 1 Molten metal temperature. Molten metal temperature found OK 729 ~743 C Ok Inclusion / foreign particles in molten metal 2 Material Degassing done as per decided frequency Found ok Ok 3 Degassing not done effectively DI observed less than 2 DI 0.4 Found ok Ok F/AE/QA/53
Root cause analysis, Validation Part:- K0LA DRUM Defect:- Blow hole Why:- Shrinkage feeding not proper near oil seal area Why:- Turbulence create during molten metal pouring Why:- Ingate thickness more than requirement of casting section Root cause Validation - Ingate thickness more than requirement of casting section hence turbulence creates during molten metal pouring. - Turbulence resulted in to blow hole on ingate. F/AE/QA/53
THANKS F/AE/QA/53
