[PSUBS-MAILIST] Cutting circlip grooves

Tue Oct 13 16:13:32 EDT 2015

Hi Hugh,thanks for the advice. Am finding out a lot on line or the hard way.Got the lathe, milling machine,tungsten tool holder & gauges.The big mistake I made was buying a lathe with 100mm jaws, thinking itwould hold 100mm diameter aluminium rod. I am sure I told the guy I neededit to machine 100mm rod. He is now emailing China to try & find a bigger set of jaws orchuck that will fit my machine. Am also ordering a following steady rest, as the propellershaft I am making bows in the middle slightly when machining.Cheers Alan
      From: Hugh Fulton via Personal_Submersibles <personal_submersibles at psubs.org>
 To: 'Personal Submersibles General Discussion' <personal_submersibles at psubs.org> 
 Sent: Wednesday, October 14, 2015 8:28 AM
 Subject: Re: [PSUBS-MAILIST] Cutting circlip grooves

#yiv6388169323 #yiv6388169323 -- _filtered #yiv6388169323 {font-family:Calibri;panose-1:2 15 5 2 2 2 4 3 2 4;} _filtered #yiv6388169323 {font-family:Tahoma;panose-1:2 11 6 4 3 5 4 4 2 4;} _filtered #yiv6388169323 {}#yiv6388169323 #yiv6388169323 p.yiv6388169323MsoNormal, #yiv6388169323 li.yiv6388169323MsoNormal, #yiv6388169323 div.yiv6388169323MsoNormal {margin:0cm;margin-bottom:.0001pt;font-size:12.0pt;}#yiv6388169323 a:link, #yiv6388169323 span.yiv6388169323MsoHyperlink {color:blue;text-decoration:underline;}#yiv6388169323 a:visited, #yiv6388169323 span.yiv6388169323MsoHyperlinkFollowed {color:purple;text-decoration:underline;}#yiv6388169323 span.yiv6388169323EmailStyle17 {color:#1F497D;}#yiv6388169323 .yiv6388169323MsoChpDefault {font-size:10.0pt;} _filtered #yiv6388169323 {margin:72.0pt 72.0pt 72.0pt 72.0pt;}#yiv6388169323 div.yiv6388169323WordSection1 {}#yiv6388169323 Alan,Welcome to machining.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.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.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    

From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of Alan James via Personal_Submersibles
Sent: Tuesday, 13 October 2015 8:08 p.m.
To: Personal Submersibles General Discussion
Subject: [PSUBS-MAILIST] Cutting circlip grooves  Hi, I need to cut a few external circlip grooves in stainless 316 rod.One is 1.1mm wide (3/64") & the other .7mm (1/32") wide. The shaft is 10mm & 8mm diameter.I have a lathe tool that fits tungsten inserts & am wondering that IF I can get an insertthe right width, whether the tungsten would be too brittle for that.Another option may be a dremmel drill & disk if I can set it up on the lathe carriage & if they havegrinding disks that diameter.Any suggestions, comments appreciated.Thanks, Alan
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