QFR No - 7000838557
Defect Details
| NC No. | 7000838557 |
| NC Date | 25/05/2022 |
| NC Submission Date | |
| Part No. | S2HT52107B |
| Part Name | OUTER SPRING K0PG |
| Supplier Name & Code | 101225-HELICAL SPRINGS |
| ETL Plant | 1136-ETL Suspension Sanand |
| Defect Details | NOT AS PER SPECIFICATION-Grinding Angle Less than 270 ° |
1. Problem Description
| Defect Description | Grinding angel found less i.e. observed 190, 185, 220 degree against the spec of 270 degree min. |
| Detection Stage | Receipt |
| Problem Severity | Function |
| NG Quantity | 1820 |
| Is Defect Repeatative? | No |
| Defect Sketch / Photo | 3jd0wsglcjllsqocql1hxmsz.jpg |
Supplier Communication Details
| Quality Head Email ID | ravindra@helicalsprings.in |
| Plant Head/CEO Email ID | shaikhmoin@helicalsprings.in |
| MD Email ID | ataneja@helicalsprings.in |
2. Stock Details & action taken for NG parts
| Location | ETL End | Warehouse | Transit | Supplier FG | Supplier WIP | Total |
|---|---|---|---|---|---|---|
| Total Qty |
1820
|
0
|
0
|
0
|
4000
|
5820
|
| Check Qty |
1820
|
0
|
0
|
0
|
4000
|
5820
|
| NG Qty |
1820
|
0
|
0
|
0
|
0
|
1820
|
| Scrap | 0 |
| Rework | 0 |
| Under Deviation | 1820 |
| Containment Action |
|---|
| Check all material found ok at helical end found ok. |
3. Process Flow
| Process Flow Description |
|---|
| RM>Coiling> SR1>Grinding>Shot peening >Correction>Powder Coating>PDI>Packing> Dispatch. |
4. Process Details
| Process / Operation | Grinding |
| Outsource | No |
| Machine / Cell | Grinding M/c |
| Machine / Cell No. | NA |
5. Problem Analysis
| Type | Possible Cause | Fact Verification | Jud |
|---|---|---|---|
| Machine | not feasible to maintain | grinding angle 250 deg | O |
6. Inspection Method Analysis (Current)
| Inspection Method | Instrument |
| Other Inspection Method | |
| Check Point at Final Inspection | Yes |
| Checking Freq. | Sampling |
| Sampling | No |
| Sample Size | 5 nos |
7. Root Cause Analysis (Occurance)
| Why 1 | Grinding angle less observed |
| Why 2 | grinding angle not achieved in grinding |
| Why 3 | due to length variation, the grinding angle less |
| Why 4 | grinding angle required is 250 deg min |
| Why 5 | -- |
| Root Cause (Occurance) | grinding angle required is 250 deg min |
Root Cause Analysis (Outflow)
| Why 1 | Grinding angle less observed |
| Why 2 | Not arrested in existing sampling due to less in no. |
| Why 3 | -- |
| Why 4 | -- |
| Why 5 | -- |
| Root Cause (Outflow) | Not arrested in existing sampling due to less in no. |
8. Countermeasure ( Occurrence , Outflow & System side Actions )
| Type | Countermeasure Details | Responsibility | Target Date | Actual Date | Status |
|---|---|---|---|---|---|
| Occurance | Drawing modified and updated for Grinding angle | ETL-HELICAL | 30/05/2022 | 08/08/2022 | Completed |
9. Inspection Method After Customer Complaint
| Change In Inspection System | No |
| Change Details | No change |
| Inspection Method | Other |
| Other Inspection Method | visual |
| Check Point at Final Inspection | Yes |
| Checking Freq. | Sampling |
| Sampling | No |
| Sample Size | 10 nos |
10. Evidance of Countermeasure
| Occurance (Before) |
Drawing with grinding angle 270 deg min 151_Occurance_Before.pdf |
| Occurance (After) |
Drawing with grinding angle 250 deg min 151_Occurance_After.pdf |
| Outflow (Before) |
Acceptance criteria - 270 deg min 151_Outflow_Before.pdf |
| Outflow (After) |
Acceptance criteria - 250 deg min 151_Outflow_After.pdf |
11. Horizontal Deployment
| Horizontal Deployment Required | No |
| Applicable Machine / Model / Plant | no |
12. Document Review
| Documents | Drawing, ControlPlan, WISOP, InspCheckSheet |
| Specify Other Document | OPL |
13. Effectiveness Of Action
| Reviewed Quantity | 0 |
| Reason for submission | Grinding leas |