In the field of metal processing engineering, spinning is a new technology for chipless forming of metal products. This molding technology has the advantages of good deformation conditions, good product performance, small dimensional tolerance, high material utilization rate, and wide range of products. However, when the CNC spinning machine is processing, the mold will be deformed. Many people don't know much about it. In fact, as long as the deformation law of metal spinning is mastered, this deformation can be prevented. So how to prevent the problem of mold processing deformation.
1. The mold structure design of CNC spinning machine should be reasonable, the thickness should not be too disparate, and the shape should be symmetrical. The mold should master the law of deformation and reserve machining allowance, and a combined structure can be used for large and complex molds.
2. Reasonably select the heating temperature and control the heating speed. For complex molds, slow heating, preheating and other balanced heating methods can be adopted to reduce the heat treatment deformation of the mold.
3. Under the premise of ensuring the hardness of the CNC metal spinning machine mold, try to use pre-cooling, graded cooling quenching or warm quenching process. For some complex molds, pre-heat treatment, aging heat treatment, quenching and tempering nitriding heat treatment can be used to control The precision of CNC spinning machine mold.
4. When repairing defects such as mold blisters, pores, and wear in metal spinning processing, use cold welding machines and other repair equipment with small thermal impact to avoid deformation during the repair process.