Power press machine factory in China? World has been committed to the development and production of power press machines since it was established in 1953. More than 100 experienced engineers are working in the three R&D centers, one in Shanghai, one in factory and another one in Ningbo. See more information on pneumatic press machine. Working together for customer success. Since the foundation of the Yinxin world press machine company, one of the foundation principle has been to work closely with our customers. This provides the opportunity to continually assess and improve the levels of service we offer and to create the most innovative products available.
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.
Hydraulic press brake machines are divided ito manual bending machines, hydraulic bending machines and CNC bending machines. Manual bending machines are divided into mechanical manual bending machines and electric manual bending machines. According to the synchronization method, hydraulic bending machines can be divided into: torsion axis synchronization, machine-hydraulic synchronization, and electro-hydraulic synchronization.According to the movement mode, hydraulic bending machine can be divided into up-moving typ and down-moving type.
When free bending is used, the bending radius is 0.156 times the opening distance of the die. During the free bending process, the opening distance of te die shoul b 8 tms te thickness of the metal material. For example, when using 1/2 inch (0.0127 m) open distance to form 16 gage mild see, the bendig adis o the par is about0.078 inches. I h bndig radius is almost as small as the material thickness, a bottomed die must be formed. However, the pressure required for forming a bottomed die is about 4 times greater than that of free bendingIf the bendig radius is less than the thickness of the material, a punch wit afrontend filet radus smaller than the thickess of the material must be used, and the imprint bending methoc must be used. In this way, 10 times the pressure of free bending is required.
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. Discover extra details at pressmachine-world.com.