The use of rolling tools to improve the finish of the metal surface is a relatively straightforward machining method. The thickness of metal workpieces has always been an important process for many metal workpieces, such as hydraulic cylinders, jacks, automobile wheels, etc. Due to long-term working collisions, a higher finish can greatly increase the collision strength of the product and increase the direct life of the product. It has also been explained in the mechanics that the smoother the product, the faster the mechanical collision and rotation, the more labor-saving. Therefore, how to improve the surface roughness has always been a subject of our meticulous research.
Rolling tools are widely used in machining. If turning tools, boring tools, milling cutters, etc., are also applied to many different machine tools, such as lathes, drilling machines, boring machines, etc. The cutting tool itself is mostly machined by cutting, so as to meet the size and process requirements of the product workpiece. Today we introduce a special machining tool, which breaks the original cutting method and uses the principle of extrusion to achieve plastic deformation of metal products. The purpose of use is mostly to improve the surface finish and surface hardness of metal workpieces. Related reading: The use and structure of the inner hole extrusion knife
The hydraulic cylinder is one of the main components of the hydraulic tool holder Z. The traditional processing method is: blanking → quenching and tempering → turning reference surface → rough boring → turning (repair reference surface) → fine boring → fine turning → (finish reference surface) )→Heng (divided into two steps: rough honing and fine honing). The process has the following shortcomings: (1) The process route is long and takes a long time; (2) Because the honing head wears severely during honing, the honing head needs to be replaced constantly, which increases the cost of honing; (3) Honing pollution is serious , Due to the need to use aviation kerosene for cooling and lubrication during honing, air pollution is caused and the health of workers is seriously affected. The route of the boring-rolling compound process widely used by factories now is: blanking→tempering→turning (reference surface)→rough boring→turning (repairing reference surface)→boring and rolling. After the boring and rolling composite process replaces push boring and honing, the work efficiency is greatly improved, the process route is also greatly shortened, and the cost is reduced. After the boring and rolling composite process is adopted, the hardness and strength of the surface of the bore in the cylinder are improved, the surface roughness is reduced, and the service life of the cylinder is prolonged. This process can not only guarantee the quality, but also obviously improves the processing efficiency and reduces the processing cost.