Mr.Jerry Wagner , Could you give me a ED's copy? Regards, Jin Hong -----Original Message----- 发件人: Jerry Wagner <[log in to unmask]> 收件人: [log in to unmask] <[log in to unmask]> 日期: 1999年12月3日 22:43 主题: Re: [TN] Why SPC is not used more >ED I have a copy of your article very well said > >> -----Original Message----- >> From: Ed Cosper [SMTP:[log in to unmask]] >> Sent: Thursday, December 02, 1999 2:52 PM >> To: [log in to unmask] >> Subject: [TN] Why SPC is not used more >> >> Lou has a made a very good point. In one article I wrote for PC Fab some >> years ago on SPC, I made a similar comment. Oh the subsequent wailing and >> gnashing of teeth!! >> >> I stated in this article that one of the first things and effective SPC >> program will highlight is incompetence. The problem is simple. Once you >> highlight a concern, someone now is expected to fix it. In many instances, >> those responsible may not be able to fix it. This presents a significant >> problem to many in our industry that may have been promoted into positions >> that they are simply not qualified for. >> >> I know many may challenge my position on this but I suspect when were >> alone >> and no one is around, we all can relate to individuals to which my >> scenario >> applies. >> >> Just my opinion and that's all it is. >> >> Ed Cosper >> >> >> >> ----- Original Message ----- >> From: Lou Hart <[log in to unmask]> >> To: <[log in to unmask]> >> Sent: Thursday, December 02, 1999 5:01 PM >> Subject: Re: [TN] SPC Information >> >> >> Thanks, Bob, for your comments on SPC. Your last point is critical - gage >> error. If you don't have a good gage, give up right away. By good, I >> mean >> not that it is able to determine that something does or does not meet >> spec, >> rather, that it can discriminate between parts or coupons or any test >> sample >> that actually comes off the production line. There's a book by Don >> Wheeler, >> Evaluating the Measurement Process, that deals with this point. >> >> SPC is not a cookie cutter approach. You need some engineering sense. I >> dare say no one who has used SPC found a recipe for it in his or her >> industry in a book. It's a tool. I can go out and buy a box of wrenches, >> but that doesn't make me a car mechanic. >> >> I'm interested to hear from others on the new IPC document on SPC in >> assembly, am still eagerly awaiting my copy. >> >> Why is SPC not used more widely? It's been around 70 years, easy to use, >> and it helps. Hate to sound cynical, but maybe it's because with SPC any >> operator can see and prove when engineering and management has given him >> an >> incapable process. >> >> Lou Hart >> >> ############################################################## >> TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c >> ############################################################## >> To subscribe/unsubscribe, send a message to [log in to unmask] with >> following >> text in >> the body: >> To subscribe: SUBSCRIBE TECHNET <your full name> >> To unsubscribe: SIGNOFF TECHNET >> ############################################################## >> Please visit IPC web site (http://www.ipc.org/html/forum.htm) for >> additional >> information. >> If you need assistance - contact Gayatri Sardeshpande at [log in to unmask] or >> 847-509-9700 ext.5365 >> ############################################################## >> >> ############################################################## >> TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c >> ############################################################## >> To subscribe/unsubscribe, send a message to [log in to unmask] with >> following text in >> the body: >> To subscribe: SUBSCRIBE TECHNET <your full name> >> To unsubscribe: SIGNOFF TECHNET >> ############################################################## >> Please visit IPC web site (http://www.ipc.org/html/forum.htm) for >> additional >> information. >> If you need assistance - contact Gayatri Sardeshpande at [log in to unmask] or >> 847-509-9700 ext.5365 >> ############################################################## > >############################################################## >TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c >############################################################## >To subscribe/unsubscribe, send a message to [log in to unmask] with following text in >the body: >To subscribe: SUBSCRIBE TECHNET <your full name> >To unsubscribe: SIGNOFF TECHNET >############################################################## >Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional >information. >If you need assistance - contact Gayatri Sardeshpande at [log in to unmask] or >847-509-9700 ext.5365 >############################################################## ############################################################## TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c ############################################################## To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TECHNET <your full name> To unsubscribe: SIGNOFF TECHNET ############################################################## Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information. If you need assistance - contact Gayatri Sardeshpande at [log in to unmask] or 847-509-9700 ext.5365 ##############################################################