High quality bending press machine factory in China? Fast delivery standard machines stock for sale: Standard C frame single crank press and eccentric press are always some units stocking for sale. 2 weeks to 30 days lead time for customized order. Big press line such as car body parts stamping line could be ready for shipment within 4 months after order. Discover additional details at https://www.pressmachine-world.com/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.
Even if there are shelves full of molds, don’t assume that these molds are suitable for the newly purchased machine. The wear of each mold must be checked by measuring the length from the front end of the punch to the shoulder and the length between the shoulder of the female mold. For conventional ols, the deviation per foot should be about t0.001 inches, and the total length deviation should not be greater than t0.005 inches. As for the precision grinding mld, the accuracy per foot should be ±0.0004 inches, and the total accuracy should not be greater than ±0.002 inches. It is best to use fine grinding molds for CNC bending machines, and conventional molds for manual bending machines.
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.
In particular, the resilience stress stat,the flatness and the cuting quality are very important quality characteristics that must be considered for the materials n the staightening and feeding technology. Remarkably, these criteria play a decisive role i te qualit of the final product even befre te final molding. In production, for reasons of cost and time, the aim is to achieve an ever-higher degree of automation, which can only be achieved if the semi-finished products have perect latness, a lowlevel o residual stress. lf these requiremets are not met, this can have a negative effect on handling and further processing or even make it impossible. Discover additional details on pressmachine-world.com.
