Brazing help!!

[MAGIC MUFFLER]

Hi guys,

Anyone here do brazing on small jobs for repair?  I have a bicycle head badge here from 1899 that needs

a little brazing work done to help the restoration. It's a rare beautiful badge and I'll never find another one.

I thought to ask here because this is outta my league and I see guys here doing this stuff.

Thank you

Bill

[Greg Myers]

Are you asking for advise or some one to do the work for you ? Either way brazing is no different than soldering except for the material and the temperature. 

[MAGIC MUFFLER]

I've actually never done it before and thought it would be better to have someone do it who really understood those temps so I don't melt it!!!!!

[Greg Myers]

Good idea for something like that

[Yenkocamaro]

Your head badge is probably too thin for Brazing, I've done brass, and copper Brazing, and the metal you are brazing, has too be red hot, for it to flow, and you have to worry about warpage and melting, depending on how thin the material is.  Its probably, a stamped plate, right? Have you considered making a mold?

 

Cheers,

Lance

[Ace-Garageguy]

Lance has an excellent point. The heat required for brazing can rapidly destroy a thin-gauge stamped steel part, and if the part is brass or copper, forget it. What's the material, and can you post a photo of the badge so we can see the damage that needs to be corrected?

Making a composite mold of the badge, as suggested by Lance, really isn't that difficult. Specific resins are manufactured for just that purpose...to make press-dies (1/8 inch thick steel tank-wheel centers have been pressed successfully)...and I've personally used them to reproduce aluminum parts accurately.

Edited March 1, 2016 by Ace-Garageguy

[Old Buckaroo]

Without a picture it is hard to tell what you need done.   I have some really old law badges and the mounts on them were soldered. I also have some "peso " chonchos and the same with them.

[MAGIC MUFFLER]

Here's one picture to get an idea but I can get better pics in the next day or so if need be.

1) One piece on the top has a split - needs to be brought back together.

2) the letter "M" is missing the center drops of the letter and have to be made.

This is much too difficult for any skill level I have!

 

Thanks guys for all who are helping assist..

 

[Old Buckaroo]

Billy, I would try making contact with the member "10thumbs"  he is very talented and does "lost wax casting" perhaps he could help you out.

http://www.modelcarsmag.com/forums/profile/13335-10thumbs/

[Ace-Garageguy]

Sean's giving you good advice. You'll need someone with pattern-making skills to repair the missing letter, and who can also make a mold and cast a replacement part. This is WAY beyond a simple "brazing" repair. Good luck with this interesting project.

[Greg Myers]

Isn't this board great ? Good guys everywhere you turn. 

[MAGIC MUFFLER]

Thank you so much guys.  You're right …… isn't this board great!!!!!!

I'll see where I get and hopefully get this rare beauty restored.

Cheers