Ultra-High Precision Forming

This ultra-high precision, down-acting system uses advanced hydraulics to provide the ultimate in positioning accuracy, independent AC-servo motors to drive high efficiency, and bi-directional hydraulic pumps for an extremely fast approach, bending and return speeds for faster cycle times and more parts per hour.

The HD NT Series Servo/Hydraulic Press Brake from Amada America, Inc. (Buena Park, CA) is an ultra-high precision, down-acting system featuring advanced hydraulics that provide the ultimate in positioning accuracy. The machine uses independent AC-servo motors to drive high efficiency, bi-directional hydraulic pumps. This provides an extremely fast approach, bending and return speeds for faster cycle times and more parts per hour. It also provides unequalled ram positioning, with repeatability of ±0.00004 in.

Programmable ram tilting and 50 percent off-center bending capacity allows for quick set-up of multiple stage part bending. The hydraulic pump motors are on only when the ram is moving for low power consumption. Stable hydraulic oil temperature ensures consistent angular accuracy, with less hydraulic oil and fewer oil changes required. The machine operates at a very low noise level.

The Amada AMNC/PC is a PC control with touch-screen and network capabilities that offers multiple modes of data entry (angle, depth, 2D and 3D) for the utmost in programming flexibility. Through the Bend-Navi feature on the AMNC-PC control, or with Amada’s Dr. ABE Bend offline programming software, operators are provided with a 3D simulation of the bending process which reduces setup time and bend errors. A graphic tool library and tool set-up graphics assist operators in the quick setup of complicated parts.

Amada’s SDD database software provides for program storage on the control or on a server when the control is networked, providing secure storage of machine setup and program data. A bar code scanner provides simplified and immediate retrieval of stored programs. Adjustment of all machine axes can be accomplished through use of a control-mounted handwheel.

The machine uses innovative “one touch” punch holders to ensure faster tool set-up. Simply rotate a lever to lock and seat each punch into place so there is no need for wrench. The precision ground, sectionalized tools are easy to handle and eliminate shimming. Quick change dies eliminate any need to align the punch and die when a die is changed.

A CS clamp seats and secures punches with the turn of a single switch. One switch activates all of the punch holders across the bed of the machine. Sectionalized punches can be loaded and unloaded from the front of the holder. The drop-prevention mechanism increases safety and the punches stay secure in the holder with the clamps in the open position. A quick disconnect allows for easy removal of each punch holder. A safety mechanism allows for continuous clamping in the event of a power failure.

The system uses a high-speed, high-precision, probe-style BI-S Bend Angle Sensor to measure and adjust the bend angle on the fly and eliminate the need for test bending and adjustment of the initial bend angle. This eliminates scrap and reduces setup time. Automatic angle adjustment ensures high quality production bending even when material thickness and hardness varies from part to part. This sensor overcomes any environmental factor that effects bend angle to produce high accuracy bends – even if the operator lacks experience. This sensor comes standard on HD series brakes from 88 tons to 243 tons.

The system uses Dr. ABE Bend bending simulation software to free up press brake capacity by moving the set-up offline and reduce cost-per-part. This software selects tools and automatically creates tool layouts and bend sequences with a success rate of up to 80 percent. The technician can manually program the remaining parts offline. Set-up instructions stored on the network and are instantly available. The AMNC-PC control uses offline programs to reduce remaining internal set-up.

For improved safety and reduced labor costs, HD Series press brakes can be equipped with an automated Work Follower system that uses sensor technology to provide simple operation without the need for programming by the brake operator. After bending starts, an automated table follows and supports the material throughout the bending process to eliminate part deformation. Processing large parts previously required two operators, but the SF Series eliminates the need for a second operator while providing faster and safer transfer of material. The system provides easy handling and processing of various part geometries. www.amada.com