The EDBV3 features XYZ-axis travels of 370 x 270 x 500 mm with a 250 x 270-mm worktable able to handle a maxi- mum workpiece load of 5 kg with an optional 15 kg payload available. The rotary C-axis head features an EROWA compact chuck that enables automatic changing of electrodes down to 0.2-mm diameter and is able to spin up to 1000 rpm. For untended burning of varying cooling hole diameters, the ATC and AGC systems combined into a common assembly provide simple and precise automated exchanges in 30 seconds. The EDBV3 uses a rigid guide-arm assembly to hold, locate and support the die guide, which can be alternately used as a programmable W-axis. An integrated middle-guide system can be applied for small diameter electrodes prevent- ing whipping, bending and vibration. The middle-guide fingers automatically retract as the electrode tube reduces in size, us- ing 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. Software technologies used in Makino’s fine-hole sinker EDM machine and the Model Plan system are integrated into the controller, providing input screens with direct G and M- code programming formats. An electrode length management system provides electrode wear tracking and automatically exchanges electrodes when lengths become too short. ME For more information from Makino, go to www.makino.com, or phone 800-552-3288.
Turbo Milling Fir Tree Profiles F
ir tree profile machining for turbo machinery is benefiting from a technique that uses trochoidal machining strategies
in Delcam’s PowerMILL software for five-axis machining. The milling approach has been patented by Iruba, a German provider of engineered solutions. The technique was recently demon-