MoldMaking Technology

MAR 2013

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Wire EDM with Cylindrical Drive Motor Mitsubishi���s MV Series with cylindrical drive motor is built on the latest technology in machine construction; the X and Y axis ways and drives are directly mounted to a one-piece, T-shaped case casting, providing the most rigid and thermally stable platform driving the table and column independently, according to the company. This style of direct axis mounting removes all squareness and accuracy issues that come with a stacked table design, providing higher rigidity and smoother movement for more reliable, precise cutting. A redesigned auto-threader concept delivers improved threading capabilities, with upper rollers that travel with Z-axis, creating a constant distance to the upper guide. This allows nearly 14 inches of annealed/straightened wire length, improving threading reliability on tall parts, submerged threading and rethreading through the gap after a wire break. A large air gap between the shaft and the forcer in the cylindrical drive minimizes heat output and the effect of metallic shop dust on the system. Other EDMs are built using flat plate linear drives, constructed from iron core magnetic coils on the primary side, and permanent magnets on the secondary side. For more information from Mitsubishi Laser/MC Machinery Systems, Inc. of Wood Dale, IL, phone 630-616-5920 or visit Mitsubishi-laser.com Laser Welder The Lase One from Equipment Sales Co. repairs plastic injection molds, rubber processing molds, and die casting molds and dies made of aluminum, steel and beryllium copper. The Lase One is an affordable alternative to expensive laser welders, the company states. It is suited for repairs on aluminum molds used for prototype or production runs and also traditional steel molds. This limited heat (pulse pulled plasma arc) process minimizes mold and die deformation and results in easier and cleaner finishing. Typical applications are parting lines, corners, edges, pin holes, scratches, machining errors, etc. The Lase One pays for itself by saving molds and dies, the company adds. All units are shipped complete with accessories, repair materials and instruction manual. The Lase One is safe and easy to use by persons without previous welding experience, according to the company. For more information from Equipment Sales Co. of Sioux City, IA, phone 800-255-6046 or visit equipmentsalesco.net Pallet System The Yama Seiki AV860 APC is based on a high rigidity structure and a threeaxes, high precision linear guide way design to provide strong performance and precision. The AV series high accuracy and efficiency capabilities make it the most capable and cost effective VMC on the market, the company reports. Equipped with an automatic pallet changer system, it greatly reduces cycle times to save costs. The APC system is driven by a servo motor that deploys 4 pc tapered positioning blocks and powerful hydraulic clamping force to eliminate gap, cutting vibration, while assuring accurate pallet positioning. The pallet working table size is 31.5���x18.1���, a rotation angle of 180��, table loading of 441 pounds, and has a pallet changing time of seven seconds. The high torque belt type spindle design provides 10,000 RPM with a FANUC alpha 12i motor that outputs 20 HP. Utilizing a 24 ATC that is standard, it provides short tool change time in three seconds and is designed for reliability. X, Y, and Z travel measures at 33.9���x23.6���x23.6���, with rapid traverses of the X, Y axes at 1890 IPM and Z axis at 1260 IPM. All casting components are created using the Finite Element Method (FEM) analysis to ensure optimal machine design and structural rigidity, the company adds. For more information from YAMA Seiki USA, Inc. of Chino, CA, phone 909-628-5568 or visit yamaseiki.com moldmakingtechnology.com 51

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