The bending process in sheet metal processing is said to be the process that most sheet metal parts have to go through. Today, I’m going to present to you the introduction about the bending process:
Basic explanation of technology of bending in sheet metal processing
In the bending process of sheet metal processing, pressure equipment and special molds are used to process the sheet metal in three dimensions. Due to different materials, thicknesses, lengths, and widths of the sheets, as well as the different shapes and angles of formation, the tonnage and dimensions of the bending machines of the pressure equipment are also different. The height, shape, and V-amplitude of the upper and lower molds are also different, and their special mold shapes are also different.
The bending process can be divided into three categories: partial bending, closed bending, and embossed bending. Local bending: The method of right bending and obtuse bending is to choose the upper mold which is smaller than 88 degrees and the lower mold with V=12t (groove width V, material thickness t). Closed bending: Use the method of bending at right angles and obtuse angles of 90 degrees. Choose V=6~12t for the lower mold near the bend. Bending: Use a 90-degree upper mold for right-angle bending. (Standard right-angle bending). Choose V=5~6t for the lower bending mold.
If the bending speed of sheet metal processing is to be increased during the bending process, the gear switch can be operated in a single or continuous operation. However for safety reasons, single operation is usually used. When bending long parts, the angle in the middle is usually large. We can adjust the CC axis to change the middle angle to achieve the same angle as the left and right sides. In the bending process, please pay attention to the principle of center bending, which is the important prerequisite to ensure bending accuracy.
One end of the bending machine is not allowed to bend, or the angle will not be good and this will damage the machine. It is not allowed to cut off the power supply for a short period of time. Turning off the oil pump is fine. This can save electricity costs, avoid reprocessing the origin during work, save time, and improve production efficiency. To complete the product or stop machine operation, firstly place the lower mold in the lowest position, turn off the oil pump, and then turn off the power supply. If this batch of products has been completed, you need to remove the mold, put it back on the mold rack, and return to the control panel.