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Author Topic: Landing gear Mild steel rod mig weld  (Read 237 times)

Offline MikeB

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Landing gear Mild steel rod mig weld
« on: December 25, 2019, 07:12:27 PM »
Has anyone the ability to mig weld a landing gear as I need to complete a build

Offline IanF

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Re: Landing gear Mild steel rod mig weld
« Reply #1 on: December 25, 2019, 08:16:20 PM »
That must be some hefty landing gear.  :laugh:

What I do with wire UCs is to bend them so the parts to join together are parallel then wrap together with wire and silver solder the lot together.

( you should have asked Santa for a mig welder 😀 )
« Last Edit: December 25, 2019, 08:18:07 PM by IanF »
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Offline MikeB

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Re: Landing gear Mild steel rod mig weld
« Reply #2 on: December 28, 2019, 10:59:10 AM »
I think someone has given me a bum steer, the undercarriage is not heavy.

Cheers I Will let you know how I get on.

Is silver solder simply solder without lead??

Have a nice New Year

Mike


Offline IanF

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Re: Landing gear Mild steel rod mig weld
« Reply #3 on: December 28, 2019, 11:21:23 AM »
Right

Clean both areas with a pc of wet and dry around 80 grade. Wrap each joint tightly with copper wire (you can strip out some earth wire if you need)
Use plumbers solder with separate flux.
Use a high power soldering iron at least 60 to 100 watt, or a mini blowtorch heat the joint apply the flux then the solder applying heat and solder until it fills the gaps. Let cool .. clean up and check.

Try it out on a bit of scrap u/c first. You should have some 😉

Some others may use a different method, so they may post theirs.

Here is an article how to do it with piccies
https://www.modelairplanenews.com/soldering-wire-landing-gear-the-easy-way/#visitor_pref_pop



« Last Edit: December 28, 2019, 11:27:59 AM by IanF »
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Offline Mike Deans

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Re: Landing gear Mild steel rod mig weld
« Reply #4 on: December 28, 2019, 03:42:29 PM »
I have in the past brazed two wires together using a blow torch and rods already coated with flux, as Ian has mentioned practice first. One other thing comes to mind make sure the two pieces are in correct alignment/spacing, use a temporary jig if need be.

Mike
Happiness is flying and landing in one piece

 

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