A frog-shaped molded cavity is machined at 80,000 RPM with the BIG DAISHOWA RBX spindle speeder.
enters into the stop block through the position pin, and into a turbine drive. The turbine drive then transfers the torque and speed to the cutting tool. New to both Flurry and Saegert, they invited BIG DAISHOWA representative Neal Wilson to demonstrate the RBX7 Air Power Spindle on their machine. Spindle speeds easily reached 60,000 and approached 80,000 without losing control or breaking the small cutters. The difference in surface finish made a major first impression. “The difference was
clear, an astronomical difference,” Flurry stated. “When compared to parts coming off the coolant speeder, one was a mirror, one was a foggy mirror.”
manufacturing area during the regular workday.” Coolant was the call and initial results were promising. RPMs exceeded 40,000, feed rates reached 60 IPM and instead of 75 hours, plates were being machined in 20-25 hours. Mission accomplished, right? Not quite. “We had certain troubles with it,” Flurry said about the coolant- driven speeder. “The coolant had to be filtered very well. Coolant pumps wouldn’t always cooperate, and it wasn’t equipped with a full duty-cycle motor. If we were running lights out, I felt obligated to come back several times throughout the night. I was uneasy about it. We needed something more reliable.” Enter recently hired machinist, Justin Saegert. He suggested using an air-driven speeder instead of the coolant-driven style. In this scenario, the machine spindle does not rotate at all, the machine is merely moving the tool from one position to another. The drive is within the tool itself. The air
The difference was clear, an astronomical difference, Flurry stated. When compared to parts coming off the coolant speeder, one was a mirror, one was a foggy mirror.
A delicate .031 " ball mill is used to machine each half of the lure’s mold cavity.
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