Manual Roller Bending Machine


Manual Roller Bending Machine report

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Manual Roller Bending Machine

Manual Roller Bending Machine


Abstract: Hydraulic hand operated work piece bending is a machine which is used for bending the rod or work piece manually. By using hydraulic energy the pipe bending process can be carried out. The existing system is bending of pipes carried by men in a difficult way, but in the proposed system handled by hydraulic arrangement, which bends manually with the help of hydraulic jack. This project is designed with Hydraulic bottle jack and roller.Bending is a process by which metal can be deformed by plastically deforming the material and changing its shape. The material is stressed beyond the yield strength but below the ultimate tensile strength. The surface area of the material does not change much. Bending usually refers to deformation about one axis. Bending is a flexible process by which many different shapes can be produced. Standard die sets are used to produce a wide variety of shapes. Bending is done using Press Brakes. This project we are using the hydraulic power to bend the metal pipe. Because using this hydraulic system have good load capacity and good efficient. And also this project consumes no electrical power. So cost is less compared to electrical powered hydraulic systems. The plastic deformation of the bar is retained throughout the process. However, the elastic deformation is reversed as a section of bar leaves the area between the rollers. This “spring-back” needs to be compensated in adjusting the middle roller to achieve a desired radius. The amount of spring back depends upon the elastic compliance (inverse of stiffness) of the material relative to its ductility. Aluminum alloys, for example, tend to have high ductility relative to their elastic compliance, whereas steel tends to be the other way around. Therefore aluminum bars are more amenable to bending into an arc than are steel bars.