EDM Drill's Revised Design Increases Machining Speed
Makino’s EDBV3 is an EDM drilling machine designed to produce cooling film holes in blade and vane turbine engine component details. The machine applies fully submerged operation to enhance machining speed and accuracy for stable breakthrough operations, especially when machining into a hollow internal cavity. Capable of detecting breakthrough within 1 sec., the machine uses the company’s digital ES200A generator to increases power up to 80 A.
The revised machine design streamlines production applications and increases machining speed. The rapid feed rate of the X, Y and Z travels has been doubled to 10 m/min, reducing positioning time. The machine’s integrated two-axis rotary table has been reconfigured to place the workpiece closer to the center of rotation, which reduces positioning distance, and the indexing speed has been improved from 3 to 10 rpm. Additional improvements include a longer Z-axis stroke, enhancements to the automatic toolchanger (ATC) and an optimized machine layout.
The Hyper-i control delivers a common interface for all of the company’s EDMs.
Thread milling and tapping are two methods for machining threads in a hole. Tapping is more popular, but thread milling has several advantages that might be important in your application.
The recipe for best results is simple: Start with a rigid machine, add a high pressure through-the-spindle coolant system, then combine these with the right drill geometry plus the right speeds and feeds.
Recent tap geometry refinement and advances in coating technologies have made the chip-less, cold-forming operation suitable for a wider range of workpiece materials.