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Factors that harm the accuracy of sheet metal bending workpiece and solutions

  • Time of issue:2024-05-21 10:42
  • Views:

Factors that harm the accuracy of sheet metal bending workpiece and solutions

(Summary description)In recent years, along with the many applications of sheet metal stamping processing technology, bending workpieces has become a major sheet metal processing method, and the precision of bending processing has become a key parameter for considering the quality of workpiece production and processing, so what are the influencing factors that jeopardize the precision of sheet metal processing? How to improve the precision of the bending workpiece?

  • Time of issue:2024-05-21 10:42
  • Views:
Information

In recent years, along with the many applications of sheet metal stamping processing technology, bending workpieces has become a major sheet metal processing method, and the precision of bending processing has become a key parameter for considering the quality of workpiece production and processing, so what are the influencing factors that jeopardize the precision of sheet metal processing? How to improve the precision of the bending workpiece?
In order to further improve the bending accuracy of sheet metal bending workpiece, sheet metal processing plant of the editor will analyze the important factors related to the harm of bending accuracy, and summarize to enhance the accuracy of the workpiece bending processing countermeasures, for each sheet metal parts people to provide reference.
Factors and solutions that jeopardize the precision of sheet metal bending workpieces

Sheet metal stamping
Hazard 1: CNC lathe deflection deformation
In the process of bending and processing of large precision workpieces, the flexural deformation of the machine tool is a problem that must be considered. Suffer from the harm of the bending machine's own structure, its working category as a whole presents a slight inclination, resulting in the roller in the horizontal direction is not proportional to the theme of activity, the record value and the specific offset there is a certain difference between the value of the middle part of the value of a slightly larger, which leads to bending processing, the long and short direction of the angle of view of the change, resulting in the middle of the angle of view of the problem of the severity of the harm of the bending process production accuracy.
Solution: Reduce the deflection of the CNC lathe itself
Need to set up a slanting wedge structure on the lower mold, according to the slanting wedge structure to compensate for the precision damage caused by the flexural deformation. In the actual processing, taking into account the material of the workpiece, the characteristics of the difference, the degree of deformation is slightly different, in order to achieve a high degree of accuracy of the deformation compensation must be carried out several times to detect, obtain a good compensation method, and then carry out the mass production of manufacturing, to ensure that the accuracy of workpiece processing.
Hazard 2: Unevenness of the sheet
When carrying out sheet metal bending processing, the sheet to be processed as a homogeneous body, isotropic physical properties and the same thin thickness. However, in fact, there is a certain difference in the thickness uniformity of the plate, which will have an impact on the bending accuracy of the plate. This element is evident in gap bending, where the specific direction of displacement of the upper roller may be offset from the direction of travel, resulting in a certain angular deviation.
Solution: Selection of uniform material plate
As mentioned above, material unevenness is a key factor in determining the accuracy of workpiece bending, resulting in uncertainty in the rebound force of the bending process. For this problem, should start from the selection of plate, try to select the material uniformity of high-quality plate as the workpiece bending material. In addition, it should start from the manufacturing of the plate, relying on cutting-edge metallurgical industry, casting technology to complete the improvement of the quality of the plate, to enhance the overall homogeneity of the plate. Thank you for reading, I hope my sharing is helpful to you.

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