Power press machine manufacturer and supplier 2022? Yingxin World Press Machine Company has exporting center in Shanghai with professional team to follow up logistic and document process, which also saves a lot of time in middle process. More than 65 years experiences focusing on producing power press machines. Read even more info on power press machine. Through this partnership of shared experience and ideas, we are confident that we can realize your current and future requirements on WORLD press machine.
In order to choose the lowest onnage specifiction,itis best to plan for a bening radus larger than the thickness of the material, and use the free bending method as much as posible When the bending radius is large, it often does not affect the quality of the finished part and its future use. Bending accuracy requirements are a factor that needs to be carefully considered. It is this factor that determines the need to consider a CNC bending machine or a manual bending machine. If the bending accuracy is required to be ±1 and cannot be changed, the CNC machine must be focused.
Main features: Adopt all-steel welded structure, with sufficient strength and rigidity; Hydraulic drive, the oil cylinders at both ends of the machine tool are placed on the sliding block to directly drive the sliding work; The slider synchronization mechanism adopts torsion shaft for forced synchronization; Using mechanical block structure, stable and reliable; The stroke of the slider can be adjusted quickly by motor, fine-tuned manually, and the counter is displayed; Oblique wedge-type deflection compensation mechanism to ensure higher bending accuracy.
As far as free bending is concerned, punch and die are procese at 85 or les (saler i better). When using this set of molds, pay attention to the ga beteen the male mold and the female mold at the bottom of the stroke, and the excessive bending that is sufficient to compensate for the springback and keep the material at about 90°. Generally, the springback angle of the free bending die on the new bending machine is s2, and the bending radis is equa to 0.156 times the opening distance of the die. For the bending of bottomed concave molds, the mold angle is generally 86 ~ 90°. At the bottom of the stroke, there should be a gap slightly larger than the thickness of the material between the male and female molds. The forming angle is improved because the bottomed die has a larger bending tonnage (about 4 times that of free bending), which reduces the stress that usually causes springback in the bending radius.
The reason for this is the significantly lower modulus of elasticity of aluminum compared to stel. However, i ore to realise reaterdegrees o defration, sale straightenig rolls must be used. With high-strength steels, on the other hand, a conflict of objectives arises. On the one hand, their high yield strengths require enormous forming forces and torques; on the other hand, small straightening rll diameters are als ned here to ahie asufficent egeo p lstificaton.The straightening o both aluminum and high-strength steels therefore requires a forming geometry adapted to the respective product. This is essentially determined by the number, diameter and spacing of the straightening rolls. Find even more information on pressmachine-world.com.