Page 28 - MetalForming September 2014

Rapid Die Changes
Force from the magnetic clamping system comes through the poles surround- ed with the blue resin. The poles are distributed to hold the smallest tools as well as the largest tools.
hydraulic or mechanical clamps were used.
For the lower tool, though, magnets were not an easy
option. With the tools on paral-
lels, it was possible to clamp with magnets, but the investment would be much higher than if the tools were on plates. The number of tool changes per shift in this application did not justify the cost to use the more expen- sive magnetic clamping required for parallel-mounted tools.
And, because clamp height varied by as much as 1 in. from tool to tool, hydraulic clamps were not possible without substantial tooling changes
BELOW THE HOOK
burg, VA) with 13,400 lb. of clamping force and height-adjustable from 3.5 to 7 in., which eliminated the need for separate height heel blocks. Their design allowed a wide clamp-height range by adjusting the height of the bolt which passes through the forged
that meant higher costs.
That left mechanical clamps, which
have seen recent noteworthy upgrades in technology. For its new Aida press, Atlas went with adjustable mechanical clamps (Model S40 clamps from Lenzkes Clamping Tools, Christians-
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26 MetalForming/September 2014
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