Sheet Bending

Sheet bending is a common processing method in sheet metal fabrication, so what specific forms of bending it, today I would like to introduce to you in graphic form.

1, L shape bending

L shape bending according to the angle is divided into 90 ° fold, and non-90 ° fold, the name of the angle in accordance with the into within the angle. 90 ° bending deformation coefficient for the material thickness of 0.4 times.

2, N shape bending

N shape bending according to the value of l and h dimensions and take different processing methods, one is directly divided into two fold molding, the other is to add shims backfold flattening, in general, N-fold in the H for the more important size.

3, Z shape bending

Z shape bending according to the forming angle is divided into straight edge break and beveled edge break, processing method according to the height of the break, straight edge break when the break height h is less than 3.5 times the thickness of the material using a break die or easy die forming, more than 3.5 times the thickness of the material using a normal positive and negative two fold to complete. Beveled edge break when the beveled edge length l is less than 3.5 times the material thickness, using the break difference mold or easy mold forming more than 3.5 times the material thickness, using the normal one positive and one negative fold to complete

4, Hem: It is also known as the reverse fold flattening, its forming process is completed by two steps: first bending to about 35 degrees, this step for the insertion of deep, and then pressed out of the hem. Operation should pay attention to the parallelism of the large surface after forming.