Precision Machining Technology (MindTap Course List)
2nd Edition
ISBN: 9781285444543
Author: Peter J. Hoffman, Eric S. Hopewell, Brian Janes
Publisher: Cengage Learning
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The bending speed of a universal bending machine must be adjustable for both the rapid traverse and feed motions. A load-depended flow control valve can be used for rapid traverse, after a given distance had been travelled, the bending operation must be carried out at a non-load depended and adjustable speed.
The return stroke over the same distance must be controlled by the same valve. A flow control valve should be connected up in such a way that flow passes through it in the same direction during the feed and return stroke motions
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