# Determining the Expanded Length of Bending Workpieces by Experimental Method

Determining the Expanded Length of Bending Workpieces by Experimental Method can be a time-consuming and iterative process. However, it is necessary to ensure that the stamped and bent workpieces meet the required specifications and have satisfactory accuracy. It is important to follow the procedure accurately to minimize the error that might occur.

The following is a step-by-step procedure for determining the unfolded length of a stamped and bent workpiece by the experimental method:

## 4 steps

• In step 1), the unfolded length of the workpiece can be calculated using the mathematical methods available, taking into account the material properties, mold conditions, and other relevant factors. This will give an estimated value of the unfolded length, which will be used to create the stamped and bent workpiece.
• In step 2), the stamped and bent workpiece should be made using the calculated expansion size. Care should be taken to ensure that the material grade and thickness are consistent with the requirements specified in the drawings.
• In step 3), the stamped and bent workpiece is placed on the bending die for trial punching. This will help to identify any potential problems with the workpiece, such as incorrect size, shape, or positioning. If there is any discrepancy, it will be necessary to make corrections to the stamped and bent workpiece and remake it.
• In step 4), the extruded part of the workpiece is measured to see if its size matches the requirements specified in the drawing. If there is any deviation, it is necessary to correct the size of the stamped and bent workpiece according to the measurement results. The corrected stamped and bent workpiece can then be trialed punched again, and the measurement process repeated. This cycle continues until a satisfactory part is obtained.

This process can be comprehensive and iterative, but it is necessary to ensure that the stamped and bent workpieces meet the required specifications and are accurate. It is critical to follow the process carefully to minimize the error that may occur in the process.

## Final Words

The experimental method for determining the unfolded length of a stamped and bent workpiece can be time-consuming, but it is essential to ensure that the workpiece meets the required specifications and has the desired level of accuracy. It is advisable to use this method only when required, whereas simple shapes, a small number of corners, and low precision requirements are ideal candidates for calculation methods to determine the unfolded length of the stamped and bent workpiece.