With the rapid growth of wind power projects in China,Large grinding ring 3 m forgingproduction, size, quality, etc.Large grinding ring 3 m forgingofRing grinding process is a kind of forging classification, with the rapid development of the forging industry, the development of ring grinding process used in the forging industry more and more, mainly with the ring grinding machine to forge. The ring grinding machine is divided into vertical and horizontal types. Most small and medium-sized ring grinding machines adopt inclined vertical type for the convenience of operation, while large ring grinding machines adopt horizontal type for the sake of working translation and convenient transmission.

Large grinding ring 3 m forgingofGrinding ringprocess involvesPlastic processing theory, material mechanics, theoretical science, fluid mechanics, mold design, computer numerical simulation and many other fields, so there are many influencing factors and technical difficulties.Large grinding ring 3 m forgingofGrinding ringProcessIt is carried out on a special reamer. There are generally four kinds of rollers on the reaming machine: active roller, driven roller, guide roller and control roller. The heated ring blank is sleeved on the driven roller, and the driving roller surface carries the ring blank rotating side and is fed radially by oil pressure, so that the blank is compressed and extended, the wall thickness is reduced, and the inner and outer diameters are increased at the same time. The guide roller always rests againstLarge grinding ring 3 m forgingThe remaining rollers rotate by friction. According to production experience, the angle between the guide roller and the main axis should be greater65°, control andLarge grinding ring 3 m forgingThe diameter increases and moves outward. Its function is to make the workpiece rotate smoothly and reshape the workpiece. WhenLarge grinding ring 3 m forgingWhen the outer diameter reaches the required size, the workpiece contacts with the control roller and sends a signal to make the driving roller return, and the reaming ends. The motor only drives the active roller to rotate, and the other rollers are passively rotated. The angle between the control roll and the spindle shall be greater55°。Large grinding ring 3 m forgingofGrinding ringProcessThe appropriate expansion ratio and the amount of pressure per turn must be used to ensure that the entire reaming process always meets the bite conditions of the blank, so that the rolling can be stable.