Sheet metal processing with more germanium production process, bending process is one of them, and occupies the most important technology and technology, sheet metal processing in the bending process will also have a variety of problems.
First, A. problem: after bending, the workpiece will deform at the bend.
The reason for B.: deformation is mainly due to the fast bending speed, but the hand does not keep pace with the bending speed of the workpiece.
C. solution: reduce bending speed, hand work and workpiece at the same time.
Second, A. point: bending a longer workpiece, will appear angle one big, one small.
B. has this situation, usually in the following situations:
(1). The thickness of the material is not consistent and the end of the end is thin.
(2). The wear of the die is not uniform and the height of the two ends is different.
(3). The middle block is not balanced, not at the same level.
(1). Feedback to the laser or NCT, so that it should pay attention to the selection.
(2). Change the knife die.
(3). Adjust the middle block.
Third, A. problem: when bending Z, some workpieces will be deformed.
B. causes: This is mainly due to the position of the C for the post fixed position, bending B at the time, the workpiece bending up movement, collision in the fixed gauge, the post is squeezed. After the bending, the D is squeezed.
C. solution: after the use of the post pull function.
Fourth. A. problem: the bending size is small, and the positioning is not good. The upper die is easy to press on the back gauge.
B. causes: because t=0.8, press the principle of die selection, v=5 x 0.8=4mm.4v center to the edge of the distance of 3.5mm, and 2.9mm in the size of 2.9-0.8=2.1mm, bending size in the center line of V to the edge of the distance, can not be positioned at the front.
C. solution: 0 1 can be down model back loading. Add a pad (not more than 3T) before the fixed gauge, so that the back gauge back, avoid the upper die 0 2 if the other end size is more than 3, and the other end can be repositioned.