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Cincinnati Lead Screw Repair


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  #1  
Old 04-27-2018, 12:40:35 PM
restore49 restore49 is offline
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Default Cincinnati Lead Screw Repair

Built new nuts and would like to flip screw 1 1/8 not hardened and use the Not worn chipped end. Was thinking cut flip drill 1/4" pilot holes bevel and continuous mig weld??
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Old 04-27-2018, 02:22:20 PM
Thaumaturge Thaumaturge is offline
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Default Re: Cincinnati lead screw repair

Main problem is going to be accurate alignment of course. Especially with those unequal diameters. Simple v-block alignment wouldn't work. I'd suggest you go deep on your pilot holes and use O1 drill rod slugs for alignment, or even thread and use all-thread. Do multiple opposing tacks before long welds. Maybe constuct alignment jigs for each end. Another problem is likely to be you will lose your lathe while working on it, unless you have multiple lathes...
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Last edited by Thaumaturge; 04-27-2018 at 03:53:20 PM. Reason: Dang spelun
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Old 05-01-2018, 12:21:15 PM
restore49 restore49 is offline
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Default Re: Cincinnati Lead Screw Repair

Success - pin 1/4 center - bevel 45 - clamp sides two fixtures - tack weld(more like root pass) - continuous weld. .080 deflection - spot heat cool method , with help from pipe weight hang out on end - now .002 Total.
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Old 05-01-2018, 12:25:10 PM
restore49 restore49 is offline
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Default Re: Cincinnati Lead Screw Repair

Thanks Thaumaturge:
Used a twin friends machine to finish turning.
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