In RCM thread ?Colander Repair? (December 2009), I reported the failure of the spot welds holding the three feet onto my wife?s favorite colander, ideal for draining just-cooked pasta, that she had had for at least 30 years.
After much discussion on RCM, I settled on using solid stainless (18/8) steel rivets from McMaster-Carr. The repair was made in January 2010, and has held until now, when the two welds on one foot let go. The third weld had been failed and was drilled out and riveted in 2010. The foot now rotates freely around that rivet. This will not last. So replaced all the welds with rivets, from the box of 100 rivets purchased in 2010.
Drilled using a #41 drill (tight fit) and Mobilmet cutting oil. Took a lot of deburring - the bowl metal is very gummy. Installed rivets using an 8-ounce ball peen hammer and a piece of 1? diameter 4149 stock with one end turned flat to serve as the anvil. Wash the cutting oil off using very hot water and lots of dish detergent.
Joe Gwinn