[TheForge] rivets

Wed Mar 26 21:21:01 2003

I was using 5/16"rivets and riveting hot since I had to make a tool anyway,
thought I should make it for the air hammer, but it didn't work very well.
Randy Mundt
----- Original Message -----
From: "RIES NIEMI" <[email protected]>
To: <[email protected]>
Sent: Wednesday, March 26, 2003 2:01 PM
Subject: Re: [TheForge] rivets


> Are you riveting hot or cold?
> As far as I know, only aluminum rivets are done cold with a pneumatic
> riveter, and even then only pretty small ones.
>
> We have been setting a lot of rivets lately, mostly with a 30 ton
hydraulic
> press cold, stainless up to 1/4" diameter, brass and copper up to 1/2".
Some
> of them wont fit in the press, so we do them by hand, and we heat up the
> rivet with a torch, then use a hand set tool to beat them with a hammer.
>
> If you remember from your old cartoons, rivets on skyscrapers were set
hot-
> lots of them seemed to end up down the back of peoples pants- little rivet
> forges were always balanced on I beams fifty stories up.
>
> Check out this company:
> U.S. Industrial Tool and Supply Company
> WWW.ustool.com
> 188-4-USTOOL
>
> They sell all kinds of nifty riveting and sheet metal tools for aircraft
> mechanics, including lots of back up bars for riveting, which are always
> used, even in hot riveting steel rivets- Maybe you werent using a backup
> bar?
> Also, were you using the rivet length of  one and a half times diameter
> sticking out the back? thats what I use for a round head. If the rivet is
> too long, the head always gets ugly looking.
>
> > Has anyone had any experiance riveting w/ an air hammer, the hand held
> > variety?
> > I have a chipping hammer you know a little jackhammer about 18" long,
thought
> > I would use it for riveting so cut of the chisle end on the tool ,
heated it,
> > and drove a rivet head into it to make a heading tool. the way my rivets
were
> > located I couldn't get a straight shot at them so put an offset in the
tool.
> > I thought I was going to rivet like nobodys business,wrong.
> > I bent rivets and formed heads off center like nobodys business.Finally
wound
> > up doing most of the rivetting w/ a hand hammer and punch and using the
air
> > hammer for the final shaping of the head.  I'm sure  the offset in the
tool
> > didn't help matters, but it sure seemed like I was hitting the rivets
straight
> > on. Any Ideas?
> > Randy Mundt
> >
> >
>
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