aluminium composite signage Bending with a press brake
We can bend Aluloyal /fr and Aluloyal with a press brake. The bend ability depends on the thickness and the core material. Aluloyal /fr has a larger bendable limit than Aluloyal has. The smallest bendable radius (internal radius) with press brake is as follows:
1."Traverse" and "Parallel" show the bending direction toward the Rolling (coating) direction painted on the protective film.
2.The smallest bendable radius means the limit at which visible wrinkles appears on the aluminum surface of Aluloyal aluminium composite signage . Cracks will appear at a slightly smaller radius than this value.
3.Use the top die (punch) with an almost similar radius to the desired radius. If the radius is much smaller, the bending radius partially goes beyond the above limit, and cracks may occur.
4.Use a urethane pad for the bottom die, or place a rubber mat between Aluloyal and the bottom die.
5.Use a scratch-free top die. Polish and wipe the top die. Do the ending work without peeling off the protective film of Aluloyal aluminium composite signage .
6.When we carry out the bending work at a low temperature e.g. 15°C, the coating surface may change to haze-like appearance. Warm the panel to 20°or higher, and the haze-like appearance will disappear.
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