Copper rivets

Help Support HMEM:

Lakc

Well-Known Member
Joined
Aug 22, 2009
Messages
984
Reaction score
44
Recently, I have been rather unsuccessful with some copper rivets, until I tried annealing them first. Do you always have to anneal rivets, or just the ones that have sat around too long and hardened?
 

Lakc

Well-Known Member
Joined
Aug 22, 2009
Messages
984
Reaction score
44
During the first swaging operation, instead of the body of the rivet expanding when "hammered into itself", it just wanted to bend over.
 

misfitsailor

Active Member
Joined
Dec 1, 2011
Messages
39
Reaction score
30
When I copper riveted a PMR boiler I had to anneal repeatedly.
 

Jasonb

Project of the Month Winner!!!
Project of the Month Winner
Joined
Mar 30, 2008
Messages
2,417
Reaction score
430
Location
Surrey, UK
I've never found the need to anneal them but I don't use multiple tools just set the rivit then straight onto the end with the snap and a few good blows.
 

Lakc

Well-Known Member
Joined
Aug 22, 2009
Messages
984
Reaction score
44
When I copper riveted a PMR boiler I had to anneal repeatedly.
Yep, wound up laying each rivet on a firebrick and torching until a pretty golden color made them nice and soft. Only took a few seconds for each one.
I've never found the need to anneal them but I don't use multiple tools just set the rivit then straight onto the end with the snap and a few good blows
I had these rivets laying around for a few years. I dont know if they age harden, but annealing certainly made working with them much more enjoyable.
 

wackyvorlon

Member
Joined
Aug 28, 2012
Messages
19
Reaction score
3
Some copper alloys do age harden. Depends what they're made of.
 

abby

Well-Known Member
Joined
Apr 13, 2009
Messages
404
Reaction score
115
This thread is about copper rivets , apart from brass I have never come across "copper alloy" rivets , what would they be used for ?
Copper work hardens and will be in that state after the rivets are manufactured , like any other copper anneal them before use by heating to red heat and cooling.
 

Latest posts

Top