yeah, bit of a burrlesque story.... Inge ----- Original Message ----- From: "Whittaker, Dewey (EHCOE)" <[log in to unmask]> To: <[log in to unmask]> Sent: Wednesday, August 30, 2006 4:01 PM Subject: Re: [TN] Deburring and Polishing Brushess Maybe we should pass this on to Rudy, because he obviously has a burr left somewhere. Dewey -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Franklin D Asbell Sent: Wednesday, August 30, 2006 5:29 AM To: [log in to unmask] Subject: Re: [TN] Deburring and Polishing Brushess Steve, That looks like a counterbore or milling bit...not good for drilling, but with the correct feeds and speeds will certainly not leave burrs... Franklin -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory Sent: Wednesday, August 30, 2006 7:20 AM To: [log in to unmask] Subject: Re: [TN] Deburring and Polishing Brushess Good Mornin'!! WINK-WINK... ;^) Check out: http://stevezeva.homestead.com/files/Sharp_drill_for_Habib.doc Interesting looking drill. It's something I've never seen before... -Steve Gregory- -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Hfjord Sent: Tuesday, August 29, 2006 12:56 PM To: [log in to unmask] Subject: Re: [TN] Deburring and Polishing Brushess Habib, I'll ask Steve Gregory to put a page on his webshow, wait until you see a wink from him here on TN. It's about a full carbon tool. Regards Ingemar Hernefjord ----- Original Message ----- From: "Habib Sahli" <[log in to unmask]> To: <[log in to unmask]> Sent: Tuesday, August 29, 2006 3:48 PM Subject: Re: [TN] Deburring and Polishing Brushess > Hello, > > I'm interested in burr-free drilling. > What is IMHO? > Could you please give more informations or links for documentations. > > Best Regards. > > > Habib SAHLI > Engineering Dept. > Tel : 00216 72 451 144 > Fax : 00216 72 451 333 > E.mail : [log in to unmask] > > > ----- Original Message ----- > From: "Brian Ellis" <[log in to unmask]> > To: <[log in to unmask]> > Sent: Tuesday, August 08, 2006 9:43 AM > Subject: Re: [TN] Deburring and Polishing Brushess > > >> IMHO, avoiding the production of burrs is a better technique than >> deburring. This implies as near-perfect drill bits as possible, with >> a controlled geometry to very tight tolerances, the correct >> rotational speed, pressure and advance and the use of the correct >> entry and exit materials. >> >> The use of abrasives, in any form, is not advisable, as they >> contaminate the surface with implanted particles, often swaged over, >> and the plastic matrix of brushes can cause polymer smearing. It is >> my experience that abrasive cleaning causes more harm than good. >> >> I touched on these matters in more detail in my book. (Section 7.2.3 >> for burr-free drilling, 7.2.4 for deburring and abrasive cleaning) >> >> Brian >> >> Baski Devre wrote: >> > Dear Technetters >> > As you know that prior to dry film coating or LPI soldermask >> > coating, surface preparation is so crucial. it can directly effect >> > dry film adhesion but we think that deburrinmg of the panels after >> > CNC drilling operation and prior to electrolytic copper plating is more crucial. >> > Does anybody have an application to deburr and polishing of the >> > panels after CNC drilling. If yes which type of brushes you use for >> > the first station to deburr and which type of brushes you use to >> > polish the bord just after the deburring process. >> > Best Regards >> > >> >> -- >> http://www.cypenv.org Cyprus environment/energy >> http://www.cypenv.org/worldenv World environment/energy >> http://www.cypenv.org/weather Cyprus weather >> http://www.cypenv.org/smf/index.php Environment/energy forums >> http://groups.yahoo.com/group/cypnature/ Cyprus nature forum >> >> --------------------------------------------------- >> Technet Mail List provided as a service by IPC using LISTSERV 1.8e To >> unsubscribe, send a message to [log in to unmask] with following text >> in the BODY (NOT the subject field): SIGNOFF Technet To temporarily >> halt or (re-start) delivery of Technet send e-mail to > [log in to unmask]: SET Technet NOMAIL or (MAIL) >> To receive ONE mailing per day of all the posts: send e-mail to > [log in to unmask]: SET Technet Digest >> Search the archives of previous posts at: >> http://listserv.ipc.org/archives >> Please visit IPC web site >> http://www.ipc.org/contentpage.asp?Pageid=4.3.16 > for additional information, or contact Keach Sasamori at > [log in to unmask] or 847-615-7100 ext.2815 >> ----------------------------------------------------- > > --------------------------------------------------- > Technet Mail List provided as a service by IPC using LISTSERV 1.8e To > unsubscribe, send a message to [log in to unmask] with following text in > the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt > or (re-start) delivery of Technet send e-mail to > [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing > per day of all the posts: send e-mail to > [log in to unmask]: SET Technet Digest > Search the archives of previous posts at: > http://listserv.ipc.org/archives Please visit IPC web site > http://www.ipc.org/contentpage.asp?Pageid=4.3.16 > for additional information, or contact Keach Sasamori at > [log in to unmask] or 847-615-7100 ext.2815 > ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e To 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