High-Speed Punching, Forming & Shape-Cutting Combined in
Amada EMLK3610NT.

Two fabrication technologies in a single machine—punching and laser cutting—make possible the high fabricating speeds, short setup times, and unlimited shape-cutting capabilities offered by Amada's EML K3610NT. This multi—functionality makes the machine ideally suited for the high production of short-run sheet metal parts, particularly those that incorporate forming or require many holes.

Capable of handling full-size 4' x 8' or 5' x 10' sheets without repositioning, the punch-laser combines the power of Amada's innovative 33-ton Electric Motor (EM) turret punch press with the unlimited shape-cutting capabilities of a laser.

The press is capable of 400 HPM on 1" centers. Its laser's RF-excited, fast axial flow 4000W Continuous Wave (with enhanced 5000W Pulse) provides the high-capacity needed to process the most challenging sheet metal applications. The result, a highly productive system that requires minimum setups and affords extremely quick turnarounds.

The EML's punching technology features enhanced positioning precision which allows for the improved capability to program dwell at the bottom of the forming stroke. This allows for the precision forming of louvers, embosses, ribs, dimples and tabs, as well as the ability to perform tapping and hardware insertion operations. In addition, given the large clearance between the upper and lower turrets, the machine can process parts with forms and tabs approaching one full inch. This gives part designers the flexibility to increase form heights which can yield greater rigidity in final assemblies.

Productivity enhancements include a 58-station "King" turret, which includes two 4.5" and two 1.25" auto index stations. This flexible array of configurations allows users to establish sufficient standard tool configurations for virtually any shape. Should any shape be missing from the standard turret configuration, it can be easily cut with the laser. The laser's X-axis (3937 ipm) and Y-axis (3149 ipm) simultaneous axis speeds (5041 ipm) allow for fast positioning rates—quickness not normally achieved in a punch/laser combination machine. The EML K3610NT integrates its laser resonator, electrical cabinet and machine into a single unit, producing a compact floor-space footprint of only 232" x 248".

The complex hydraulics systems normally associated with punch presses have been eliminated in the EML. Instead, the press incorporates twin, direct-drive motors to control the punch action of the ram, while also precisely controlling the overall movement of the striker. This eliminates the need for peripheral items such as the hydraulic unit reservoir, hydraulic chiller unit and the hydraulic lines and the pumps these units require. Says Jason Hillenbrand, Amada's laser product manager, "By eliminating these items that can leak or even fail, users can realize significant savings in maintenance costs, while also reducing their energy consumption by nearly fifty percent."

The conventional "fixed beam" laser motion system that has been typically associated with punch/laser combination machines has been replaced by a "hybrid" laser motion system. In the "YL" axis, the cutting head moves only in the Y direction and the material moves only in the X direction. This eliminates unnecessary movement of the sheet, and results in faster laser processing speeds. Another improvement is the HS2003 high-speed capacitive cutting head. It is designed to sense all materials—even at extremely high cutting speeds. Its quick-change cartridge-style lens and one-touch nozzle greatly facilitate head setup. By combining the independent CNC controlled "B" axis for focus adjustment with the programmable high-pressure assist gas, setup time for processing differing materials and/or thickness can be cut to zero.

A simplified AMNC-F PC-based control provides a multitude of functions, including graphical representation, part editing, touch screen and/or full keyboard, and e-mail notification of vital information—finished programs, machine stoppage and maintenance reminders. By incorporating an AMNC control on all of its lasers, turret punch presses and press brakes, Amada has created continuity which facilitates employee cross-training. When used in conjunction with the vFactory™ feature, shop management is able to check a machine's operating history, observe patterns between shifts, or determine the exact production time required per part or job. With vFactory, shop owners can remotely monitor any of the Amada AMNC-controlled machines in their shop.

The EML K3610NT also features three low-profile clamps for reduced dead zones, a 17" X 50" trap door for automatic parts removal, and a wide range of load/unload automation options. In addition, the machine's all-in-one design makes it easier to install, taking approximately one-half the setup time as does a comparable unit.