8D格式及案例
COMAX TECHNOLOGY CO., LTD.
Customer Complaint Corrective & Preventive Action Report (8D)
----- FILE NO.: T-DSL-02-001B2 ------------------------------------------------------------------------------------------------------------- CAR NO: CAR-030411-E --------------------
| Customer Name 客戶名稱JIAN TAY | Shipping Q’ty 出貨數量180K pcs | |||
|---|---|---|---|---|
| Part No.產品料號C121 | Failure rate 不良率1.0% / FQC | |||
| Shipping Date 出貨日期04-03-2003 | Complaint Date 抱怨日期04-07-2003 | |||
| DISCIPLINE 1: Use Team Approach (團隊組成) | DATE: 04-08-2003 | |||
| Team Leader: Edwin Lai Team member(s): Morgan Jair; Stanley Ji; Rambo Chao; Hence Huang; Leo Liu; Leo Lu; Teawe Zhang; Victor Zhou | 執行者不列入 | |||
| DISCIPLINE 2: Describe The Problem (問題描述) | DATE: 04-08-2003 | |||
| There is a break or crack on the left ear of body of connector product C121 (Discovered by customer) | ||||
| DISCIPLINE 3: Implement And Verify Containment Action (防堵措施) | DATE: 04-08-2003 | |||
| 1. Sorting out the defected product from the rejected lot and the stock of customer. 2. Sorting out the defected product from the assembly lines of customer by Comax inspectors 3. Sorting out the defected product from the assembly lines of Comax. 4. Returning all of the stored products of Comax to assembly lines to sort out the defected product (it has been finished on 9 Apr) | 防堵五要→客倉、在途、客線、我線 & 我倉。 | |||
| DISCIPLINE 4: Define and Verify Root Cause (定義及驗證根本原因) | DATE: 04-08-2003 | |||
| 1. The conner of ear of body has been hit by the head of push-bar of the sub-auto assembly machine. 2. In the continuous assembly procedure, the head of push-bar will hit the conner of ear of the next body, because the width of the head of push-bar of the assembly machine is same as the height of the C121 body. (Attached file NO.1: the photo of the assembly machine, and push-bar is before improved) 3. The inspection with 100% for cracked product is failed on picking the defects out, it make some defected product flew out to the customer. | ||||
| DISCIPLINE 5 Choose and Verify Permanent Corrective Action (永久對策) | DATE: 04-08-2003 | |||
| 1. Cutting off 2 m/m of the width of the head of push-bar of the sub-auto assembly machine to protect the next body from hitting by the push-bar. (Attached file NO.2: the photo of the assembly machine, and push-bar is after improved ) 2. The inspector for appearance checking will according to SOP and SIP to execute it strictly, avoiding the defected products be judged in wrong or leakage than flew out to customer. (Attached file NO.3: the criteria of Appearance inspection ) 3. For the better guarantee of the products quality, Comax Technical Center to enhance the strength to protect the ear of body from break or crack, and to change the thickness of ears from 0.6mm to 0.8mm. At the same time, we push logo as “COMAX” on the body. ( Attached fileNO.4 , the products drawing after enhance) 4. Pushing a break test inspection on the injection process, and the specification of the break force of the both ear is more than 2.0kg. ( Attached file NO.5 , the SIP of this inspection) 5. Adding a sensor on the entry gate of sub-auto assembly machine to avoid the next body getting into machine too early then be hit by push-bar ( Attached file NO.6 , the photo of the added sensor) | 對策六要→起點改善、工治具替助、判定標準、辨識標記、隔離處置、產品設計改善。 | |||
| DISCIPLINE 6: Implement Permanent Corrective Action (執行永久對策及效果確認) | DATE: 04-17-2003 | |||
| 1. The enhanced body of C121 is on mass production from Apr 14, and there isn’t any defect again in lot of 35K pcs. 2. According to the reading of thermal shock test, the strength of enhanced body is better than before. (Attached No.7: The thermal shock test) | ||||
| DISCIPLINE 7: Prevent Recurrence & Standardization (預防再發生及標準化) | DATE: 04-17-2003 | |||
| 1. Attached No 2 : The sub-auto assembly machine be improved 2. Attached N0.4: The enhanced body of C121 3. Attached No.5: The SIP for the break test inspection on the injection process 4. Attached No.6: The added sensor | ||||
| DISCIPLINE 8: Congratulate Our Team (恭賀團隊) | DATE: | |||
| QA Manager: Rambo Chao | QA: Hence Huang | Checked By: Victor Zhou | Prepared By:Hence Huang | |