Welding Tips and Tricks

Hello all of expert welding.

i had some problem in exciter shaft DC motor, i need to welding shaft. the defect of will be weld in shaft tip.
maybe all expert any sugesstion how to welding procedure

Thanks, Regards
Achmad

Do you need to build up a section of the shaft so it can be machined back to the original size? Or is it broken?

achmadarifudinh wrote:Hello all of expert welding.

i had some problem in exciter shaft DC motor, i need to welding shaft. the defect of will be weld in shaft tip.
maybe all expert any sugesstion how to welding procedure

Thanks, Regards
Achmad

This simple to do
Do not weld all one side then turn the shaft

Just start your weld bed then turn shaft weld like a screw by 1/4 turn

Some worn shafts more than one bed
Add extra thick this will help keep shaft straight and a good finish
Do not try filling after machining

Do not try welding in lathe it turns to fast and will do damage to the lathe
If start do this type a lot you build simple lathe that very slow
It would look like what a wood lathe you use the tool rest for the MIG gun

https://m.harborfreight.com/12-inch-x-3 ... 34706.html

Dave


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weldin mike 27 wrote:Do you need to build up a section of the shaft so it can be machined back to the original size? Or is it broken?

Maybe we need build up the shaft by welding and then machining to original dimensional. do you any suggestions what the standard or other refference sir.

Thanks, regards
Achmad

Do not weld all one side then turn the shaft

Just start your weld bed then turn shaft weld like a screw by 1/4 turn

Some worn shafts more than one bed
Add extra thick this will help keep shaft straight and a good finish
Do not try filling after machining

Do not try welding in lathe it turns to fast and will do damage to the lathe
If start do this type a lot you build simple lathe that very slow
It would look like what a wood lathe you use the tool rest for the MIG gun

https://m.harborfreight.com/12-inch-x-3 ... 34706.html

Dave


Sent from my SAMSUNG-SM-J320A using Tapatalk[/quote]
Any refference or standard sir, for welding this method ??
Thanks, Regards.
Achmad

https://youtu.be/GQ9wAtZVopQ here's a video that Jody made on the subject

https://youtu.be/0TqvEXS3f88 and another

weldin mike 27 wrote:https://youtu.be/0TqvEXS3f88 and another

Again, many thanks for your information. I'ts been very helpful.

One question sir, i weld SS 410 as base material with SS 304 wire rod on the shaft. Its required to heat treatment after welding to reduce hardness in HAZ area to get more ductility of shaft ??
Maybe you can suggest how much temperature for, or any kind method.

Thanks, Regards.
Achmad Arifudin H

Sorry mate, I can't offer you any technical info on the stainless steel. However every, check out the Esab website, Avesta website, sandvik welding for great technical tips.

You may want to rethink that filler choice, your setting your self up for failures.

http://www.harrisproductsgroup.com/~/me ... ection.pdf

Edit

And watch your preheat

http://www.tempil.com/assets/1/31/weldi ... _chart.pdf

Edit 2

Found this in my save file
https://www.nickelinstitute.org/~/Media ... _9002_.pdf

Poland308 wrote:You may want to rethink that filler choice, your setting your self up for failures.

http://www.harrisproductsgroup.com/~/me ... ection.pdf

Edit

And watch your preheat

http://www.tempil.com/assets/1/31/weldi ... _chart.pdf

Edit 2

Found this in my save file
https://www.nickelinstitute.org/~/Media ... _9002_.pdf

Wow, thank you so much sir