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Thread: Inertia Forming on a Lathe

  1. #1
    Supporting Member rgsparber's Avatar
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    Inertia Forming on a Lathe

    This video shows how to use friction to form a disk on the end of a rod.Inertia Forming on a Lathe-close-up.jpg



    Rick

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  2. The Following 33 Users Say Thank You to rgsparber For This Useful Post:

    Altair (Jan 18, 2015), aphilipmarcou (Mar 22, 2018), asterix (Dec 6, 2020), big o (Dec 19, 2017), blkadder (Oct 11, 2022), Canyonman44 (Nov 12, 2020), CedarSlayer (Jan 14, 2015), Christophe Mineau (Jan 14, 2015), Corm (Jul 19, 2018), dietmar g (Oct 11, 2022), Drew1966 (Oct 12, 2022), emu roo (Oct 5, 2022), Floradawg (Feb 2, 2022), high-side (Feb 20, 2019), Home-PC (Nov 13, 2020), Inflight (Jan 13, 2023), janders1957 (Mar 22, 2018), kbalch (Jan 13, 2015), lavern s (Jul 18, 2018), mwmkravchenko (Mar 23, 2018), nova_robotics (Feb 1, 2022), Okapi (Jul 19, 2018), oldcaptainrusty (Oct 12, 2017), Paul Jones (Jan 13, 2015), rlm98253 (Mar 21, 2018), schuylergrace (Oct 5, 2022), Scotsman Hosie (Mar 22, 2018), Shanty (Jul 18, 2018), thehomeengineer (Jan 15, 2018), Tonyg (Feb 21, 2019), Trojan Horse (Oct 12, 2017), UncleBob (Nov 2, 2018), volodar (Feb 21, 2019)

  3. #2
    kbalch's Avatar
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    Thanks Rick!

    Was the inertia welding technique you were seeking related to friction stir welding?

    I've added your Inertia Forming Method to our Lathes category, as well as to your builder page: Rick Sparber's Homemade Tools. Your receipt:


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  4. The Following 2 Users Say Thank You to kbalch For This Useful Post:

    big o (Dec 19, 2017), DietmarG (Feb 20, 2019)

  5. #3
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    Great post as usual, Rick! I hope you don't tire of sharing/educating us.

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    Supporting Member Christophe Mineau's Avatar
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    I love this trick Rick, thanks, will certainly find use for that, although my lathe cannot go as fast as yours ... maybe a little help with a torch ?
    Cheers !
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    Supporting Member Paul Jones's Avatar
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    Rick,
    You are right about adding this to our bag of tricks and finding a future use. We may need to use Christophe's suggestion of assisting with a touch.
    Thanks, Paul

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    Pretty neat trick. Thanks for sharing Rick.

    Al

  9. #7
    Supporting Member rgsparber's Avatar
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    I've already used this trick to make blind threaded inserts. Article is out but have not submitted it to Homemadetools yet.

  10. #8
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    Quote Originally Posted by rgsparber View Post
    This video shows how to use friction to form a disk on the end of a rod.Click image for larger version. 

Name:	close up.jpg 
Views:	697 
Size:	88.1 KB 
ID:	2754



    Rick
    Hi Rick - not sure whether Jon has experienced this but in my up to date Firefox, this is second time an embedded YT video didn't show. Fortunately the URL showed in this reply so went direct to watch. I'd have expected a YT video to have ''embed'' within the URL usually, or be in an iframe.

    Nice idea with the forming method - certainly more regular finish than ordinary peening.

    Chris
    ===

    Edit - to add - now the video shows here! Maybe because I have visited it on YT.
    Ain't technology great - until it goes wrong!
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  11. #9
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    Good job. Neat video short and to the point. Very useful information. Thanks for your time and efforts sir.

  12. #10
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    Nice work and it shows another capability to be had from a lathe. Thanks for the good idea.

    A word of caution. Touching the workpiece before the lathe stops turning can lead to some interesting cuts and wearing a ring is a real bad idea in a machine shop.

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