【正文】
以便追蹤管制n 系統(tǒng)、次系統(tǒng)或組件名稱及號碼:指出分析的範圍層次n 設(shè)計責(zé)任:填入 OEM廠、部門及組別;假如供應(yīng)商已知也填上n 製訂者:姓名、電話號碼、公司名稱n 車型年份 /車種:填入被此項合析影響的車型年份及車種別n Key date:計畫完成日期 (不應(yīng)晚於設(shè)計發(fā)行日期 )n FMEA date:初版及修訂日期n 核心小組:授權(quán)執(zhí)行工作的所有成員 (建議包含一份各員姓名、部門、電話號碼的清單 )DFMEA失效模式效應(yīng)分析n ITEM/FUNCTION3 填入項目 /名稱,簡要的所有功能描述,工作環(huán)境的資訊n 潛在失效模式3 何種狀況下,組件、系統(tǒng)、次系統(tǒng)可能無法符合設(shè)計的企圖3 以技術(shù)用語或物理現(xiàn)象描述,而不是客戶描述問題的方式3 審查各種類似的資料,激發(fā)敏銳性3 考慮特定操作條件下或某些使用限制 /特性3 可採用團隊的腦力激盪法n 潛在失效的效應(yīng)3 對功能的影響3 客戶察覺的現(xiàn)象3 典型的失效效應(yīng):噪音、異味、粗糙、無功能、不穩(wěn)定DFMEA失效模式效應(yīng)分析n 嚴重性3 潛在失效效應(yīng)影響的程度3 唯一降低嚴重程度的方法是改變設(shè)計3 評估準 則 (核心小組應(yīng)事先同意且維持一致性 )n 分級3 用來將組件、系統(tǒng)、次系統(tǒng)所需額外製程管制予以分級 (eg. Critical, Key, Major, Significant)3 政府法規(guī)或安全項目3 重要功能、使用配合、外觀特性3 諮詢客戶的意見 /方法DFMEA失效模式效應(yīng)分析DFMEA失效模式效應(yīng)分析Effect Criteria: Severity of Effect RankingHazardous Very high severity ranking when a potential failure mode affects safe vehicle operation 10Without and/or involves nonpliance with government regulation without warning. warning: Hazardous Very high severity ranking when a potential failure mode affects safe and/or involves 9with nonpliance with government regulation with warning .warning: Very High: Vehicle/item inoperable, with loss of primary function. 8High: Vehicle/item operable, but at reduced level of performance. Customer dissatisfied . 7Moderate: Vehicle/item operable, but Comfort/Convenience Item(s) inoperable. Customer experiences 6 disfort.Low: Vehicle/item operable, but Comfort/Convenience item(s) operable at reduced level of 5 performance. Customer experiences some dissatisfaction .Very Low: Fit Finish/Squeak Rattle item does not conform. Defect noticed by most customers. 4Minor: Fit Finish/Squeak Rattle item does not conform. Defect noticed by average customer. 3Very Minor: Fit Finish/Squeak Rattle item does not conform. Defect noticed by discriminating 2 customer.None: No Effect. 1n 潛在失效的原因或機構(gòu)3 呈現(xiàn)出設(shè)計缺陷3 導(dǎo)致失效的後果3 盡可能列出所有想得到的原因 /機構(gòu)3 典型失效原因:v 錯誤的材料規(guī)範v 不當(dāng)?shù)膲勖僭O(shè)v 應(yīng)力超限v 潤滑能力不足v 環(huán)境保護不良3 典型失效機構(gòu)v 彎曲變形、磨損、腐蝕、疲勞、搖晃DFMEA失效模式效應(yīng)分析DFMEA失效模式效應(yīng)分析