Makino releases new EDBV3 fast-hole drill EDM

New machine tool specializes in aerospace blade and vane machining.

Comments Off November 16, 2012 at 1:59 pm by

Makino has announced the release of their new EDBV3 Fast Hole Drill EDM, which
Is designed for discharge machining of cooling air holes and shaped diffuser holes in blade and vane segments.

A wide range of hole shapes and sizes can be created within a single set-up, which helps reduce the required tool variety and overall cycle times.

Brian Pfluger, Makino’s EDM product line manager said of the new machine, “The need for EDM drilling with advanced capabilities in blade and vane components has grown substantially due to new engine production requirements, as aerospace manufacturers strive to improve engine performance and reduce fuel consumption.”

“Its 2-axis rotary table combined with automatic tool and guide change systems enable manufacturers to reliably machine complex features fully unattended.”

The EDBV3 has X-, Y- and Z-axis travels of 370mm, 270mm and 500mm (14.5 inches, 10.6 inches and 19.6 inches), respectively, and worktable dimensions of 250mm-by-270mm, with a maximum work piece weight load of 5kg (optional 15kg payload available). Its rotary C-Axis head features an EROWA compact chuck that enables automatic changing of electrode diameters down to 0.2mm (0.008”), and can spin up to 1000rpm.

All EDM drilling on the EDBV3 is performed fully submerged under water for higher part quality, improved stability and faster processing speeds.

The machine uses a single-electrode processing approach, which reduces cost compared to custom multi-electrode holders and standardizes the tool holders with a more flexible system.

For unattended burning of varying cooling hole diameters, the machine uses automatic tool change (ATC) and automatic guide change (AGC) systems.

The EDBV3 uses a rigid guide-arm assembly to hold, locate and support the die guide, which can be alternately used as a programmable axis (W-axis). An integrated “middle-guide” system can be applied for small-diameter electrodes, preventing whipping, bending and vibration. Additionally, the middle-guide “fingers” automatically retract as the electrode tube reduces in size, using as much of the electrode length as possible.

The standard configuration of the EDBV3 includes a 24-station tool carousel system and 24 holder assemblies to fully tool up the machine. The tool carousel can be exchanged as a palletized magazine for extended hours of automated operation.

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