How can Manhart (Guangdong) CNC Machine Tool Co., Ltd. reduce material fracture during the bending process?

Reducing the risk of material fracture during the bending process can be considered from the following aspects:
1. * * Material Selection * *: Firstly, selecting materials with appropriate thickness, moderate hardness, and good plasticity is crucial. Avoid using materials with internal defects, as this can improve the bending resistance of sheet metal and reduce the risk of cracking.
2. * * Optimize process parameters * *: Select appropriate bending process parameters based on the properties and thickness of the sheet metal material. This includes bending angle, lower mold opening size, bending speed, etc. Ensure that the sheet metal is uniformly stressed during the bending process, reduce local stress concentration, and thus reduce the risk of cracking.
3. Lubrication: Good lubrication is crucial during the bending process. Choose the appropriate lubricant and ensure that it is evenly distributed on the surface of the mold and sheet metal. This can reduce the friction between the sheet metal and the mold, reduce stress concentration and frictional heat, and thus reduce the risk of cracking.
4. Maintenance of molds: The accuracy and wear of molds have a significant impact on the bending effect of sheet metal. Therefore, regular inspections and maintenance of molds are necessary to ensure their accuracy and smoothness, and to avoid sheet metal cracking caused by mold issues.
5. Pre treatment of wood: If it is a wooden board material, correctly handling the texture direction of the board to make the wood texture perpendicular to the crease can minimize the cracking of the board. Meanwhile, wood processing and appropriate drying can make the wood harder and reduce the possibility of cracking during bending.
6. * * Control bending angle * *: When bending, if the bending angle is too large, the material is prone to cracking. Therefore, it is recommended to control the bending angle when bending, as smaller bending angles provide better protection for the material.
7. * * Use protective tape * *: Before bending, protective tape can be placed at the crease of the material. This can reduce the possibility of material damage during the bending process, while also protecting the surface quality of the material.
In summary, reducing material fracture during the bending process requires starting from multiple aspects such as material selection, process parameter optimization, lubrication, mold maintenance, wood pretreatment, bending angle control, and the use of protective tape. This can improve the stability of the bending process and the quality of the material, thereby effectively reducing the risk of material fracture.