1 __ Case
2 __ Case 3
Histories - FASTCO
(Courtsey of FASTCO Industries,
Inc.Grand Rapids, MI)
- Qualty department at FASTCO loves NAGSIM.2D
because it is able to show customers how the part will be formed.
The metal flow is predicted so accurately that the quality staff
is able to discuss forming issues among themselves and their
customers even before manufacturing any part or build any tool.
An example is the part shown on right. Simulation of the forming
operations showed that there would be a slight underfill in
the middle of part shoulder. FASTCO relayed this concern to
its customer before building the tooling. Because the customer
did not feel that the underfill was of any consequence, the
part was manufactured according to the designed sequence. The
final part, as shown in picture, shows the undefill predicted
by the simulation. As the manufacturing concern was already
addressed, FASTCO saved several hours and pounds of scrap.
Tool Life :
- On the part shown on right, FASTCO was
experiencing premature failure of the extrude pin of a rectangular
section. To analyze the forming operation, FASTCO simulated
the process in NAGSIM.2D assuming plane strain conditions. Through
simulation, FASTCO was able to know what was happening as well
as why it was happening. The pin was then redesigned to allow
the part to be extruded without any resistance from the pin.
This particular design change was simulated in order to verify
the intent. As a result of this design change, pin life increased
from 2000 to 45000 pieces per pin