Basic knowledge of cutting machine

Nothing more than, with bottom die forming the required pressure about four times larger than the free bending. Bending machine in the bottom of the stroke, between the upper and lower mold should have a slightly larger than the material thickness of the gap. Bending radius is bigger, often does not affect the quality of the pieces and its use in the future. For free bending and bending, refer to the upper die and lower die whole opening free in the bottom of a stroke, and compensate the springback and keep the material around 90 ° of flexion. Because enough pressure ( Is about 10 times of free bending) Force on the front end contact materials, basically avoid the springback. So generally free up and down mold bending processing, mold Angle generally is 86 ~ 90 °. In the process of bending, shy of V groove size should be 8 times the thickness of the metal material. If the bending radius is close to or less than the thickness of the sheet material thickness, shall be with bottom die forming. To improve the forming Angle, with curved bottom concave die in large tonnage ( About four times that of free bending) And reduce the bending radius range usually cause the springback stress. Usually, free bending die on the new cutting machine of springback Angle 2 ° or less, is shy of lower die of bending radius of 0. 156 times.
。
the bending radius of cutting machine parts: in the process of the bending products, fold the corner radius of bending machine workpieces is also a factor to consider. To choose low tonnage specifications, the good is greater than the thickness of the material of bending radius to plan, and as far as possible by free bending method. For example, using 12 V groove bending announces the size 1 mm. 5 mm mild steel, parts about bending radius R = 1. 9mm。 Stamping bending and with bottom bending die are the same, nothing more than just the upper die front-end processing became the bending radius of the need, and the bottom of the stroke whole upper and lower die clearance is less than the thickness of the material. Using free bending, bending radius for V groove announces the size of 0. 156 times.








growth trend of fiber laser intended?