EDM Drill Provides High Production, Unattended Operation
IMTS 2018: Current EDM Inc.’s FT300 five-axis CNC EDM drilling machine features the Siemens 840Dsl control.
Current EDM Inc.’s FT300 five-axis CNC EDM drilling machine features the Siemens 840Dsl control. The fully enclosed machine is designed for production facilities in which machines are placed side-by-side in rows. It is operable and serviceable from both the front and rear machine panels. Moving-gantry design and a stationary worktable increase weight capacity and reduce operator reach for ergonomic part handling.
The machine suits high-tolerance work in the aerospace, medical, automotive and cutting tool industries. Table travels are 12" on the X axis and 6" on the Y axis, with a part-weight capacity of 30 lbs at the tilt-rotary table. Precision slides and a 6" diameter, 10" high cylindrical work envelope enable accurate positioning and drilling of complex parts such as turbine engine components, nozzles, valves, injectors, medical/dental devices and cutting tools. Drilling aspect ratios greater than 300:1 can be achieved with DI water.
The machine features a 24-station electrode changer for high production and unmanned operation. EDM milling expands capabilities by enabling the machining of three-dimensional shapes such as gates and diffusers. A sensitive servo and finely tuned power supply enable the machine to drill with consistent speed, wear and depth control. It won’t bend or collapse long, thin electrodes, and exit-hole break-through speed is optimized for rapid hole-to-hole cycle time.
A shop specializing in wire EDM for large mold components now offers EDM “turning” of small, intricate parts. Despite the potential risks involved in early adoption of new technologies, the shop believes this practice gives it a leg-up on the competition and lets it gain experience with alternative machining techniques before offering them to customers.
Modular workpiece fixturing plays a vital role in this shop’s quest to win larger, more difficult wire EDM jobs.
Wire EDM units that swivel a horizontally guided electrode wire in a CNC-controlled E axis give this shop the workpiece clearance and flexibility to produce complex, high-precision PCD-tipped cutting tools.