<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 12 (filtered medium)"><style><!--
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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Alan,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Welcome to machining.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>You need a variety of tooling, both external tool holders and internal boring bars with a range of tips. All are tungsten or Silicon carbide these days. Tips for steel, stainless steel, aluminium etc are all different these days although you can get some general purpose tips. Forget dremels. Decide on a supplier, Iscar, Sandvik, Seco they are not cheap but it is easy to ruin a job halfway through.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>You will also need a range of measuring equipment, set of micrometers 0-150mm, Telescopic gauges, dial indicators, etc. not to mention drills and taps. Also get a copy of machinery’s handbook.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>To grind high speed steel (HSS) tooling you need to read a few books or do a course at tech. Book in for a machining class and you can do a lot of homers there without having to buy tools. Next thing you need is then a milling machine. Hugh<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Personal_Submersibles [mailto:personal_submersibles-bounces@psubs.org] <b>On Behalf Of </b>Alan James via Personal_Submersibles<br><b>Sent:</b> Tuesday, 13 October 2015 8:08 p.m.<br><b>To:</b> Personal Submersibles General Discussion<br><b>Subject:</b> [PSUBS-MAILIST] Cutting circlip grooves<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div id="yui_3_16_0_1_1444719036288_2505"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue";color:black'>Hi, <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1444719036288_2505"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue";color:black'>I need to cut a few external circlip grooves in stainless 316 rod.<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1444719036288_2505"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue";color:black'>One is 1.1mm wide (3/64") & the other .7mm (1/32") wide. The shaft is 10mm & 8mm diameter.<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1444719036288_2505"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue";color:black'>I have a lathe tool that fits tungsten inserts & am wondering that IF I can get an insert<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1444719036288_2505"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue";color:black'>the right width, whether the tungsten would be too brittle for that.<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1444719036288_2505"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue";color:black'>Another option may be a dremmel drill & disk if I can set it up on the lathe carriage & if they have<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1444719036288_2505"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue";color:black'>grinding disks that diameter.<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1444719036288_2505"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue";color:black'>Any suggestions, comments appreciated.<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1444719036288_2505"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue";color:black'>Thanks, Alan<o:p></o:p></span></p></div></div></div></body></html>