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Workshop and fixit stuff

Started by Dave, July 10, 2017, 07:26:50 PM

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hermes2015

I know about J-B Weld. I wonder how it will survive years of outdoors conditions. I think I will trust the aluminium brazing more.
"Who is to say that pleasure is useless?"
― Charles Eames

Dark Lightning

I think that you are correct, though J-B Weld advertises being able to repair cast iron engine blocks. In any event, the frame I made lives indoors in a desert environment. It'll (hopefully) never even get water on it.

billy rubin

i use jb weld to fix leaking gasoline tanks and anywhere i need a tough but not brittle epoxy.

reattaching brackets to motorcycle sidecovers, most recently

ive done cylinder heads with cracked bolt holes too


more people have been to berlin than i have

hermes2015

Thanks for your input, guys.

I just had a thought (a rare event in my life) that I should post a question regarding the long term stability of epoxy adhesives in the sculpture forum over at Creative Spark, where I am a member.

https://creativespark.art
"Who is to say that pleasure is useless?"
― Charles Eames

jumbojak

I've used those alumaweld type rods before. It's tricky to get right and doesn't wet as neatly as traditional brazing but it does work.

"Amazing what chimney sweeping can teach us, no? Keep your fire hot and
your flue clean."  - Ecurb Noselrub

"I'd be incensed by your impudence were I not so impressed by your memory." - Siz

hermes2015

Quote from: jumbojak on June 03, 2022, 01:19:33 AMI've used those alumaweld type rods before. It's tricky to get right and doesn't wet as neatly as traditional brazing but it does work.

I haven't had a chance to try it. Have you ever joined stainless steel to aluminium? I want to bond M6 stainless steel nuts to 5mm aluminium sheet. Everyone stresses the need to brush the surfaces well with a stainless steel brush or even sandpaper. I think it would be good to "tin" both surfaces as well.
"Who is to say that pleasure is useless?"
― Charles Eames

jumbojak

Quote from: hermes2015 on June 03, 2022, 04:59:29 AM
Quote from: jumbojak on June 03, 2022, 01:19:33 AMI've used those alumaweld type rods before. It's tricky to get right and doesn't wet as neatly as traditional brazing but it does work.

I haven't had a chance to try it. Have you ever joined stainless steel to aluminium? I want to bond M6 stainless steel nuts to 5mm aluminium sheet. Everyone stresses the need to brush the surfaces well with a stainless steel brush or even sandpaper. I think it would be good to "tin" both surfaces as well.

I have not. But I have used rivnuts. They would work perfectly it your nuts will be hidden.

"Amazing what chimney sweeping can teach us, no? Keep your fire hot and
your flue clean."  - Ecurb Noselrub

"I'd be incensed by your impudence were I not so impressed by your memory." - Siz