QFR No - 8000893990
Defect Details
| NC No. | 8000893990 |
| NC Date | 01/10/2024 |
| NC Submission Date | |
| Part No. | F20602602B |
| Part Name | STEERING SHAFT - K201C |
| Supplier Name & Code | 101228-JAIN PRECISION AND FORGINGS PV |
| ETL Plant | 1118-ETL E-92,93 Suspension |
| Defect Details | THREADING NOT OK-M16 THREDING U/S |
1. Problem Description
| Defect Description | Threading Not Ok M16 |
| Detection Stage | Inprocess |
| Problem Severity | Fitment |
| NG Quantity | 6 |
| Is Defect Repeatative? | No |
| Defect Sketch / Photo |
Supplier Communication Details
| Quality Head Email ID | groupqaheadm134@gmail.com |
| Plant Head/CEO Email ID | jainpfl.m134@gmail.com |
| MD Email ID | jain@singlaforging.com |
2. Stock Details & action taken for NG parts
| Location | ETL End | Warehouse | Transit | Supplier FG | Supplier WIP | Total |
|---|---|---|---|---|---|---|
| Total Qty |
3400
|
0
|
0
|
500
|
150
|
4050
|
| Check Qty |
3400
|
0
|
0
|
500
|
150
|
4050
|
| NG Qty |
6
|
0
|
0
|
0
|
0
|
6
|
| Scrap | 6 |
| Rework | 0 |
| Under Deviation | 0 |
| Containment Action |
|---|
| Immediate check the pipe line stock at ETL as well as our end and provided color code identification on each part. |
3. Process Flow
| Process Flow Description |
|---|
| 1) Inward Insp 2) Cutting 3) Flaring 4) Boring & Facing 5) Bush Pressing 6) Welding 7) CNC - Bush boring , Threading & Facing 8) CNC - Turning 9) Buffing 10) Powder Coating 11) Inward Ins. 12) Final Inspection 13) Oiling 14) PDIR Inspection 15) Dispatch. |
4. Process Details
| Process / Operation | CNC - Bush Boring & Threading |
| Outsource | No |
| Machine / Cell | CNC |
| Machine / Cell No. | CNC |
5. Problem Analysis
| Type | Possible Cause | Fact Verification | Jud |
|---|---|---|---|
| Tool | ~~~ | ~~~ | O |
| Method | With adjusting thread gauging inspection | With adjusting thread gauging inspection | X |
| Man | Unskilled Operator | Less Awareness | X |
| Material | ~~~ | ~~~~ | O |
| Machine | Entry chamfer of threading no provision | Chamfer Was not given on drawing | X |
6. Inspection Method Analysis (Current)
| Inspection Method | Gauge |
| Other Inspection Method | |
| Check Point at Final Inspection | Yes |
| Checking Freq. | 100% |
| Sampling | No |
| Sample Size | 100/100 |
7. Root Cause Analysis (Occurance)
| Why 1 | M16 Thread Tight |
| Why 2 | Go gauge not engaging to thread |
| Why 3 | Chamfer of entry threading no provision |
| Why 4 | |
| Why 5 | |
| Root Cause (Occurance) | M16 entry threading chamfer not provided . |
Root Cause Analysis (Outflow)
| Why 1 | M16 Thread Tight |
| Why 2 | Mixed up, not inspected, parts in Ok lot |
| Why 3 | OK & not ok parts kept openly on inspection table . |
| Why 4 | No provision to keep |
| Why 5 | |
| Root Cause (Outflow) | Mix up not inspected parts |
8. Countermeasure ( Occurrence , Outflow & System side Actions )
| Type | Countermeasure Details | Responsibility | Target Date | Actual Date | Status |
|---|---|---|---|---|---|
| Occurance | On CNC machine bush boring Dia 14.50 mm Entry Chamfer included 1x45°. Program revised | Jitendra Sahu | 28/09/2024 | 28/09/2024 | Completed |
| Outflow | 1) Inspection Table modified with divisions 2)station wise parameter & Inspector defined . 3)All material at customer end cross checked | Sandeep Davane | 29/09/2024 | 29/09/2024 | Completed |
9. Inspection Method After Customer Complaint
| Change In Inspection System | Yes |
| Change Details | Visual Inspection has been added to check entry chamfer of thread. |
| Inspection Method | Gauge |
| Other Inspection Method | |
| Check Point at Final Inspection | Yes |
| Checking Freq. | 100% |
| Sampling | No |
| Sample Size | 100/100 |
10. Evidance of Countermeasure
| Occurance (Before) |
M16 entry threading chamfer not provided . 1125_Occurance_Before.pptx |
| Occurance (After) |
On CNC machine bush boring Día 14.50 mm Entry Chamfer included 1x45°. Program revised 1125_Occurance_After.pptx |
| Outflow (Before) |
Mix up not inspected parts 1125_Outflow_Before.pptx |
| Outflow (After) |
1)Inspection Table modified with divisions
2)station wise parameter & Inspector defined . 1125_Outflow_After.pptx |
11. Horizontal Deployment
| Horizontal Deployment Required | Yes |
| Applicable Machine / Model / Plant | PRF Steering Shaft |
12. Document Review
| Documents | ControlPlan, WISOP, InspCheckSheet |
| Specify Other Document | OPL , Q Alert |
13. Effectiveness Of Action
| Reviewed Quantity | 2000 |
| Reason for submission | No any threading related issue found after action taken. |