Recently, we often encounter customers asking questions about aluminum bending when they buy aluminum sheets, such as what is the coefficient when bending 3mm aluminum sheets ~ what knives should be used? What is the bending coefficient of a 5mm thick aluminum plate? Why will the aluminum plate crack when bending? In fact, the aluminum bending coefficient is a rule, generally 0.8 times the thickness of the aluminum plate, such as 3mm, aluminum bending coefficient is 2.4, 5mm aluminum bending coefficient is 4. With a knife, then generally with a sharp knife is better, with a straight sword knife pressure is too large, the aluminum plate is easily have cracks.
Aluminum plate bending 180 degrees is the reason for cracking
- The side of the bending and the aluminum rolling direction parallel, so it is easy to crack, the bending direction to 90 degrees.
- 180 degrees bending angle is too much, to be greater than the minimum bending radius, the general bending radius is 1.5 times the thickness of the plate
- The reason for the material, with some aluminum plates is an alloy, toughness is not pure aluminum plate is good, easy to crack.
- The aluminum plate thickness is too thick, bending 180 degrees beyond the bending limit of the material.