Recently, the Finishing Department identified one of their Herbie's
It seems Texas Die Casting had spent numerous hours
sorting one customers appliance valves for nicks on the seal beads.
It was our #1 cause for sorting. Furthermore, our customers
frequently found seal bead nicks as well. A team of interested
employees met to determine the cause and cure.
The initial thoughts were that they came from the Die Cast
Department (its' not our fault), or possibly from trim or shot blast.
An experiment was conducted which proved the majority of the seal
bead damage occurred at the shot blast area. Again, the causes had
to be explored. The potential causes were listed as not enough
ballast, too many parts, too few parts or just the handling of the
The cure turned out to be adding more parts to the shot blaster
to avoid the parts falling so far while tumbling. This resulted in
the nicks on the seal beads going away, as well as a productivity
gain of 32%.
Another great TOC success story!