




下載本文檔
版權(quán)說(shuō)明:本文檔由用戶提供并上傳,收益歸屬內(nèi)容提供方,若內(nèi)容存在侵權(quán),請(qǐng)進(jìn)行舉報(bào)或認(rèn)領(lǐng)
文檔簡(jiǎn)介
1、Control Phase 30-Jul-03,Six Sigma Green Belt,Project Description,Project Title: The coil resistance of X15-150 Green Belt: JB Zhu Department: BEL ME Champion / Manager: BH Koh / KS Park End customer: Seagate,Project Description,Problem Statement: The resistance of X15-150 coil is close to upper limi
2、t per winding result, and customer complained three times the resistance out spec. days. Goal/Objective Statement: Currently, the resistance of X15-150LP coil is close to upper limit. But, since we built small quantity samples every lot, so the readings of resistance are consistent and the Cpk is go
3、od. So I will study the mean at the first stage instead of the Cpk, the target is to make the mean of each winding match the spec. mean. For long term target, it is to make the Ppk greater than 1.5 and the resistance match the spec. mean. Other Benefits: 1. Improve the DPPM and prevent scrap. 2. Imp
4、rove the process capability and eliminate customer complain.,Team Member,NameOrganization JB ZhuME Actuator and coil - Leader/Data analysis CL YangME Actuator - Actuator ME JX GuoME Actuator - Coil Post Zhi Ping LiME Coil - Coil winding LY YangME Coil - Measurement,Update Trend Chart,Below is the la
5、test trend chart. This trend chart is based on the coils are all wound by 0.201mm wire. The target of last time is 5.814, per the baseline which is 5.863 this time, the target does not met. Per this trend chart, update the target as 5.82.,Project Timeline,PhaseDeliverablesPlan Due DateActual Complet
6、e Date DTrend Chart April 2, 2003April 04, 2003 + MFishboneMarch 31, 2003March 29, 2003 GR&RApril 01, 2003April 02, 2003 FMEAApril 08, 2003April 07, 2003 + ATrend ChartApril 30, 2003May 5, 2003 Multi-VariMay 7, 2003May 10, 2003 Hypothesis TestsMay 7, 2003May 10, 2003 ANOVAMay 8, 2003May 12, 2003 + I
7、DOE PlanJune 16, 2003June 16, 2003 DOE AnalysisJune 23, 2003June 23, 2003 Revise SettingTBD + CUpdate Trend ChartJuly 28, 2003July 28, 2003 Process Control PlansJuly 29, 2003July 29, 2003 +,Improve phase result,Recall the result from Improve Phase The KPIVs found from Improve phase are: Coil ID & Wi
8、nding Tension Revised setting 0.201mm wire with 2.5N winding tension Reconfirmation run result. Because we have no 0.200 mm wire on hand so we use 0.201mm wire, and the winding tension is 2.5N to reconfirm the setting. 5.8013-0.2270*0.201+0.119*2.5-0.0167*0.201*2.5=6.044 But the actual resistance is
9、 5.689, that suggest the equation is not adequate, there may be other noise factor which will also affect on the coil resistance.,Process Control Plan,Since number of turns is fixed factor, and the wire ID is determined per each lot wire, so the winding tension is the main KPIV will be monitored in
10、future. Current, the technician tests the winding tension every shift. For wire replacement and program adjustment, will also test the winding tension. Current does not monitor the wire ID per each spool, there is just IQC audit each lot. The technician who is responsible for the product will also r
11、esponsible for the monitoring and take action.,Control Chart,Conclusion,Per the control chart at last page, the UCL is 5.901 and the LCL is 5.826. The coil resistance are all measured at coil winding level. Because the coil leads cant be cut at the right length at coil winding level, there must rema
12、in about 20mm for each lead for coil post process convenience. So the actual resistance will be less than the measured value. Will consider to have a compensation next time when make the trend chart.,Issues / Barriers,The experiments are limited by the wire, the special ID wire must be ordered specially, so the cost will increase largely. And the lead time will be too lo
溫馨提示
- 1. 本站所有資源如無(wú)特殊說(shuō)明,都需要本地電腦安裝OFFICE2007和PDF閱讀器。圖紙軟件為CAD,CAXA,PROE,UG,SolidWorks等.壓縮文件請(qǐng)下載最新的WinRAR軟件解壓。
- 2. 本站的文檔不包含任何第三方提供的附件圖紙等,如果需要附件,請(qǐng)聯(lián)系上傳者。文件的所有權(quán)益歸上傳用戶所有。
- 3. 本站RAR壓縮包中若帶圖紙,網(wǎng)頁(yè)內(nèi)容里面會(huì)有圖紙預(yù)覽,若沒(méi)有圖紙預(yù)覽就沒(méi)有圖紙。
- 4. 未經(jīng)權(quán)益所有人同意不得將文件中的內(nèi)容挪作商業(yè)或盈利用途。
- 5. 人人文庫(kù)網(wǎng)僅提供信息存儲(chǔ)空間,僅對(duì)用戶上傳內(nèi)容的表現(xiàn)方式做保護(hù)處理,對(duì)用戶上傳分享的文檔內(nèi)容本身不做任何修改或編輯,并不能對(duì)任何下載內(nèi)容負(fù)責(zé)。
- 6. 下載文件中如有侵權(quán)或不適當(dāng)內(nèi)容,請(qǐng)與我們聯(lián)系,我們立即糾正。
- 7. 本站不保證下載資源的準(zhǔn)確性、安全性和完整性, 同時(shí)也不承擔(dān)用戶因使用這些下載資源對(duì)自己和他人造成任何形式的傷害或損失。
最新文檔
- 智慧辦公解決方案技術(shù)框架與效果評(píng)估
- 數(shù)字化教育的商業(yè)前景與市場(chǎng)機(jī)遇分析
- 教育政策東西方理念的碰撞與融合
- 基于人工智能的教育機(jī)器人商業(yè)價(jià)值探索
- 抖音商戶直播分享按鈕優(yōu)化制度
- 江西省廣豐縣聯(lián)考2024年化學(xué)九年級(jí)第一學(xué)期期末統(tǒng)考模擬試題含解析
- 貴州省仁懷市2024年化學(xué)九年級(jí)第一學(xué)期期末學(xué)業(yè)質(zhì)量監(jiān)測(cè)模擬試題含解析
- 蘇州衛(wèi)生職業(yè)技術(shù)學(xué)院《地理專業(yè)英語(yǔ)》2023-2024學(xué)年第一學(xué)期期末試卷
- 2024年湖北省武漢武昌區(qū)四校聯(lián)考化學(xué)九年級(jí)第一學(xué)期期末達(dá)標(biāo)測(cè)試試題含解析
- 2025屆潮安龍湖中學(xué)九上化學(xué)期末達(dá)標(biāo)檢測(cè)試題含解析
- 校園清廉建設(shè)活動(dòng)方案
- 檢查檢驗(yàn)結(jié)果互認(rèn)工作管理制度
- 光伏電站安全生產(chǎn)管理制度匯編
- 農(nóng)村小學(xué)生科技活動(dòng)方案
- 電腦設(shè)備報(bào)廢管理制度
- 2025年北京高考物理試卷真題(含答案解析)
- 英語(yǔ)教學(xué)課件Unit 6 Useful numbers課件6
- GB/T 45823-2025光伏單晶硅生長(zhǎng)用石英坩堝高純內(nèi)層砂
- 2025至2030中國(guó)建設(shè)工程質(zhì)量檢測(cè)產(chǎn)業(yè)市場(chǎng)深度調(diào)研及發(fā)展趨勢(shì)與投資報(bào)告
- 胸痛醫(yī)療質(zhì)控中心2025年工作計(jì)劃
- 2025至2030年中國(guó)糖精鈉行業(yè)市場(chǎng)運(yùn)行態(tài)勢(shì)及發(fā)展戰(zhàn)略研究報(bào)告
評(píng)論
0/150
提交評(píng)論