There are several types of activities that are difficult to imagine without using a roll-formed profile: roofing, construction, window replacement, prefabricated structures, and so on.. Products can be purchased from third-party manufacturing organizations or you can buy your own bending machine and make them yourself.
Hand-operated mechanisms, often used by small companies, do not always cope with the tasks set: the production speed is not enough for the efficient operation of other departments, and the thickness of the processed material, which is only 0.7-1.0 mm, is not suitable for serious load-bearing structures. In this case, a hydraulic bending press will help, the power and speed of which will provide the enterprise with everything necessary..
Hydraulic press operation.
The hydraulic listogib machine has two working tools: a stationary die and a punch pressing on the workpiece, fixed on a traverse (rigid metal movable beam). The movement of the traverse from top dead center (TDC) to bottom (BDC) occurs in two stages — free fall and working stroke. Free fall is not an entirely accurate name, each movement of the traverse is due to the hydraulic system, it is just that the tool approaches the workpiece at high speed. The working stroke is much slower, and at the end it freezes altogether. The traverse remains in BDC for some time until the resulting part finally takes a new shape..
After that, the punch of the bending machine is slightly raised, releasing the part from pressure and abruptly returns to its original position. The operator removes the part manually or an automatic system is triggered, then a new workpiece is loaded. Pressing the two start buttons starts a new cycle. The technology of operation is quite simple, if you do not go into details: before pressing, the ends of the traverse are synchronized for uniform action, sensors constantly monitor the position of the tool and the absence of foreign objects in the working area, precisely calculated force and exposure time allow you to get a high-quality part of the desired shape on a hydraulic bending press.
Equipment features.
Powerful hydraulic bending presses are rarely truly mobile, the hydraulic unit and heavy construction make them too massive. This technique has to be installed permanently, and it can only be operated in heated rooms — the oil in the hydraulic system is not intended for use at low temperatures. This essentially distinguishes hydraulic bending machines from their lightweight manual counterparts, which can be held directly on the construction site and easily rolled from place to place..
The capabilities of the hydraulic bending press, expanded due to the increased thickness of the processed material, successfully compensate for the listed disadvantages: it is installed in a permanent production facility of the company, where the equipment is effectively used at full capacity. The production of thick-walled (up to 3.5 mm) corners and channels, widely used in construction, takes a few minutes, and it is not so difficult to deliver them to the site.
Applied tools and accessories.
The main tool of hydraulic bending machines is a pair for pressing, consisting of a matrix and a punch. Special, increased requirements are put forward for their quality:
hardness (to increase service life and precise work);
rigidity (for even pressing and the production of quality products);
smoothness (the workpiece slides over the surface during bending, it is important to avoid scoring on the paintwork).
High-quality dies and punches, which are ideally installed on a hydraulic press brake, can only be purchased from the manufacturer of the existing equipment. Additional devices that allow you to establish the production of new parts or make the work more efficient, it is also advisable to purchase only high-quality ones. Such products will last a long time, quickly pay off and be really useful. Hand tools must be used after a complete stop of the press, so that the operator’s health is not threatened by sudden movement of the working parts..
