|
Application |
|
Staking aluminum captured fasteners on an automated staking
press |
Service Conditions |
|
1. |
Cold forming aluminum fasteners |
|
2. |
Production rates of over 100 forming operations per minute |
|
3. |
Light lubrication provided |
|
4. |
High speed staking operation results in high impact loads
and high contact pressures during forming |
|
Problems |
|
1. |
Existing Tungsten Carbide tooling galls causing rejects and
downtime |
|
2. |
Mix of steel and aluminum in rejects prevents recycling |
|
3. |
Existing carbide dies must be hand polished with diamond
paste to remove galled aluminum and restore staking surface
on die. |
|
Solution |
|
Replace staking dies with Accuratus yttria stabilized
zirconia |
|
Results |
 |
Galling eliminated |
| |
Downtime significantly reduced; it is now a scheduled
maintenance item during tooling change over |
| |
Lubricant usage reduced easing cleaning operations |
| |
Easily repolished when necessary using existing polishing
techniques |
|
Added Note |
|
• |
This substitution has also been made on staking dies for
plated electrical connectors with the same dramatic results. |
|
| |
