Case History #3 - American Brands:"I would like to take this opportunity
to confirm that the Tymac-equipped 150 ton die casting machine is meeting
or exceeding our projected expectations."
- Patrick Bye,
American Brands was using a 150-ton die casting machine to make staplers, but they
were experiencing several problems. Many of the staplers produced suffered
from poor fill. Surface finish was also a big problem, requiring a lot of
treatment, if the part was salvageable at all. Overall, scrap rate was
Tymac was asked to perform an engineering analysis, and made several
recommendations, which American Brands followed, purchasing a SuperShot III, RTU-9000,
LCM-9000, and a die-temperature control unit.
Their scrap rate promptly dropped...to ZERO.
The following table shows machine improvements achieved with the new
Tymac equipment. This data was after only 2 weeks of running. Further
fine-tuning improved things even more.
| Shots/Hour, average
| Injection Velocity
| Fill Time
| Fill Velocity Variation, 3 sigma
| Stroke Length Variation, 3 sigma
| Final Pressure Variation
| Metal Temperature, average
| Locking tons required for zero flash
||over 150 (not possible)
Apart from the improvements produced on the machine itself, post-casting
processing was cut way down. This included buffing, painting, and
inspection. These were largely unneeded because flash and porosity had
both dropped to practically zero.
ACCO was so satisfied with the performance of Tymac's products, that they
swiftly converted another machine.
©2007 Tymac Process Automation LLC
Montague, NJ 07827
(P) 973-552-4080 (F) 973-293-7778