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The new AU-1440iA Z800 submerged wire EDM From Absolute Machine Tools is engineered to process large as well as smaller parts with accuracy, speed and convenience. The machine's X-axis capacity of 55.11" (1378mm) with 39.1" (787mm) in Y and Z enable it to handle workpieces up to 68.5" x 42.5" x 31.29" (1712mm x 1062mm x 782mm) in size.
The machine structure, designed via Finite Element Analysis (FEA), includes a Meehanite cast honeycomb-type base, highly-ribbed column mounted with oversized UVZ axis, and a reinforced lower-arm to increase stiffness. To maximize durability, the 5.9" (148mm) U and V axes are protected in a cabinet located above the working area. All castings are stabilized to ensure maximum strength, reliable high precision and long durability when machining workpieces as heavy as 7,473 kg (16,440 lb.). The rigid structure and 20mm C1 Class U-V ball screws provide repeatable precision at the high flushing pressures necessary for high-speed cutting.
A precision hardened-stainless-steel workpiece-mounting table offers easy accessibility and is designed to function as a standard clamping system, permitting a wide range of workpieces to be fixtured quickly and accurately. The worktable can also accommodate any commercial clamping system.
AccuteX's exclusive automatic wire threading (AWT) system enhances machining speed by accomplishing fast submerged rethreading at the break point. When wire breakage occurs, rethreading takes place without dielectric drainage/refilling, resulting in spark-to-spark times as low as 15 seconds. The system also includes a scrap wire disposal unit.
A 64-bit Widows CE Based PC CNC system drives machine axes via closed loop, direct coupled AC servomotors, with 8 millionths resolution confirmed by a Heidenhain linear glass scale feedback system. The patented structure of the machine's Hiwin linear guideways reduces up to 90 percent of friction and vibration to produce unwavering accuracy of motion. Resulting positioning accuracy is ±0.00012" and repeatability ±0.00008" in X and Y.
Steve Ortner, president and owner of Absolute Machine Tools, said, "The AccuteX AU-1440iA Z800 EDM enables shops to easily process both large and smaller parts. The machine's strength, speed, and accuracy assure maximum flexibility and productivity."
Related Glossary Terms
- computer numerical control ( CNC)
computer numerical control ( CNC)
Microprocessor-based controller dedicated to a machine tool that permits the creation or modification of parts. Programmed numerical control activates the machine’s servos and spindle drives and controls the various machining operations. See DNC, direct numerical control; NC, numerical control.
- electrical-discharge machining ( EDM)
electrical-discharge machining ( EDM)
Process that vaporizes conductive materials by controlled application of pulsed electrical current that flows between a workpiece and electrode (tool) in a dielectric fluid. Permits machining shapes to tight accuracies without the internal stresses conventional machining often generates. Useful in diemaking.
- stiffness
stiffness
1. Ability of a material or part to resist elastic deflection. 2. The rate of stress with respect to strain; the greater the stress required to produce a given strain, the stiffer the material is said to be. See dynamic stiffness; static stiffness.
- threading
threading
Process of both external (e.g., thread milling) and internal (e.g., tapping, thread milling) cutting, turning and rolling of threads into particular material. Standardized specifications are available to determine the desired results of the threading process. Numerous thread-series designations are written for specific applications. Threading often is performed on a lathe. Specifications such as thread height are critical in determining the strength of the threads. The material used is taken into consideration in determining the expected results of any particular application for that threaded piece. In external threading, a calculated depth is required as well as a particular angle to the cut. To perform internal threading, the exact diameter to bore the hole is critical before threading. The threads are distinguished from one another by the amount of tolerance and/or allowance that is specified. See turning.
- wire EDM
wire EDM
Process similar to ram electrical-discharge machining except a small-diameter copper or brass wire is used as a traveling electrode. Usually used in conjunction with a CNC and only works when a part is to be cut completely through. A common analogy is wire electrical-discharge machining is like an ultraprecise, electrical, contour-sawing operation.
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