Hydraulic press

straighteningbendingfor steel

A new generation of straightening, forming & bending presses for the aerospace manufacturing BLISS-BRET has developed and built over many decades straightening & forming presses for steel and aerospace industry. Recently, BLISS-BRET received an order for the development and construction of a production unit with a new type of straightening press, intended for the forming of hi-tech aluminium aircraft wing structures. The new production unit had to replace old equipment and should improve ergonomics, production speed, production costs and safety. In addition, the parts, with multiple complex shapes, must remain free of surface damage during the forming operations. BLISS-BRET accepted this challenge and together with its client and its suppliers, they developed a new generation of hydraulic presses, type PHR with slide-angle control, that combines versatility, precision and speed. The integration of a custom made handling manipulator completed the production unit. Forming, bending and straightening - hydraulics High precision and versatile hydraulic functions assure the bending, forming and straightening of the aluminium aircraft structures. Ergonomic positioned displays, allow the operator to control the production parameters such as slide position and hydraulic pressure. The slide angle is adjustable and remains unchanged during slide down stroke. Even if high decentralized forces are reacting on the slide, the slide angle does not change! The set pressure is accurate up to 0,5% of the maximum nominal pressure and the slide positions is realised with a precision of 0,01 mm.