MOLDMAKING MACHINES
Pontillo feels that features that can be found in the spin- dle, guideways, and control of the DNM 500 HS make it ideal for machining high-precision tooling for molds The 15,000- rpm inline spindle found on the HS version offers superior surface fi nish, while the spindle head cooling system maintains accuracy with minimal thermal growth during the long, continuous operations typically required for mold making. The DNM’s roller-type linear motion guideways also make a signifi cant contribution by allowing for higher feed rates and interpola- tion, which is equally important when machining a mold. And fi nally, the DNM HS, which is equipped with a Fanuc 31 i control, offers additional look ahead, a must have feature in this industry. While TRA Medical manufactures plastic components for FMK Firearms as it does for many of its other service clients, FMK Firearms Inc. has its own facility. The two operations under the ownership and leadership of Jim Pontillo are equipped as follows: TRA Medical operates out of an 8000 ft2
C M Y (743-m2 ) CM
building and is equipped with one Doo- san 500 HS vertical machining center. FMK Firearms utilizes its own 7000 ft2 (650-m2
) building and is equipped with
three Doosan HP4000 horizontal ma- chining centers and two Doosan DNM 400 vertical machining centers.
Molds for Pistol’s Polymer Frame, Grip, and Backstrap
TRA Medical supplies all polymer components to FMK Firearms. Most notable and innovative is the shock absorbing backstrap for the 9C1pistol. Tooling used to produce these com- ponents are representative of the mold tooling machined on their Doosan DNM 500 HS. “The most unique feature of our pistol is the rubberized backstrap,” said Pontillo. “This backstrap not only reduces the recoil one feels when fi ring,
K MY CY CMY ERI AMERIC-MAY-2015-ME.pdf 1 4/6/2015 8:06:36 PM
it hugs and grips the palm of the shooting hand to provide a comfortable, positive grip. The result is a grip that seems to mold to the shooter’s hand, instead of having to mold your hand to fi t the grip.”
TOOLHOLDING SOLUTIONS ERI
We join MPA in celebrating 40 years of innovative solu- tions by introducing their expanded line of Angle Heads
Small Cavity Heads
Long Reach Heads
Adjustable Angle Heads
Dual Output Heads
www.eri-america •
info@eri-america.com 877-374-8005
October 2015 |
AdvancedManufacturing.org 97
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