I Have The Power!! (Burnishing)

Comments · 1.5K

• AN

  @AngelsThirteen · 1 year ago

  Thank you for keeping us in your front pocket. It gets pretty awkward, uncomfortable, and frankly sweaty when we're all in the back pocket and you sit down.

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• BU

  @Buntskunk · 1 year ago

  Lubrication specialist with 35 years of experience in machine lubrication: if you like this tool, then use a hypoid gear oil with a good sulphur content or a similar oil. You have very high surface pressures. You want this on the workpiece, but your ball bearing will suffer as a result. As you are not removing any material but only pressing, very good lubrication is the key to success.

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• AR

  @Arcemer · 1 year ago

  Only real ToTheads are excited to see the scrap pile, so they can recognize offcut from old projects

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• AT

  @AtomBomb- · 1 year ago

  For whatever reason I thought it was a tap chucked in the collet at <a href="https://www.youtube.com/watch?v=7TLdCMB-Y2s&amp;t=222">3:42</a>. I can&apos;t tell you what type of infarction I had when it suddenly moved sideways but I&apos;m sure I&apos;m going to need to see a specialist about it.

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• SP

  @spark1989es · 1 year ago

  Always a good day when this old Tony brings us a new video

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• TR

  @troycongdon · 1 year ago

  Burnishing can be used for an axle (which rotates enough times to test the theory of infinite cycles for fatigue failure) to reduce the possibility of a fatigue crack nucleation site both by reducing the surface roughness and therefore the stress concentration and by putting the surface into compression. Grinding and polishing can only accomplish the first. <br><br>When roller burnishing train axles, one uses a set of what look like roller blade wheels made of hardened steel arranged like the cheap knurling took that comes with an import lathe tooling kit. I imagine that you could get a normal ball bearing spinning by using a lathe tool post grinder with the grind stone about 45 degrees off the axis of the bearing to shape the outer race to give it a crowned shape. This both lets you raise the pressure and work through a radius. Anything that is burnished shouldn’t have sharp inside corners because those create stress risers and defeat the purpose of burnishing in the first place. Instead the axle should have inside fillets.

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• CR

  @crackedemerald4930 · 1 year ago

  this old tony is so dedicated to his craft, he made his workshop messy JUST for that one clip!!

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• LE

  @leomonk974 · 1 year ago

  <a href="https://www.youtube.com/watch?v=7TLdCMB-Y2s&amp;t=134">2:14</a> must have been a wild feeling to get a compliment like that from someone else who knows sharp objects

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• CA

  @camillosteuss · 1 year ago (edited)

  IT`S ALIVE!<br><br>Edit - I would highly consider using a solid carbide ball or a ceramic ball instead of the regular high chrome steel ones... The reason why ceramic ball in steel races allows the bearings to run at around 30% higher speeds without decreased lifetime expectancy - is because steel does cold weld itself onto steel, just like gold cold welds to gold, and titanium has a tendency to so with steel, even if the surfaces are not absolutely perfect, in the right conditions, two metal parts will cold weld together... When you run a bearing that is all steel - there is the ever so slight amount of cold welding happening where the film of lubricant gets squozen(yup) out... The breaking of the cold weld leaves a pit(micro) in one surface(often the race) and leaves a small chunk in the other(often the ball) which gets squished into the metal doing even more damage over time(which is why you tend to see faint, fine, linear, concentric grooves as healthy wear pattern)... Nitride and carbide balls do not have a tendency of cold welding, and thus they eliminate one form of material wear action during use... In a burnisher - that same property should apply and should even further increase the quality of the finish(at cost of extra sensitivity, as cera and carbide balls are ever so brittle as fuck)... I never made a burnisher myself, nor have i got one to check the difference between steel and cera/carbide ball, but such is my speculation... <br><br>Best regards!<br>Steuss

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• FI

  @filopat67 · 1 year ago

  The ball bearing you used had scratched and dull surface finish. You need a bearing that is properly polished because it transfers it&apos;s surface finish into the workpiece.

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• JA

  @JackGladstoneHolroyde · 1 year ago

  Was just on a vintage ToT binge earlier while procrastinating on fixing my bike. Just got the fairing back on and ready to sit down and procrastinate on every other task on my list!

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• DA

  @danielkemp4860 · 1 year ago

  When the drill went into the parallel, I felt it in my heart 😭

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