During the grinding process, the surface layer of the workpiece will be the cutting force, the compression force and friction of the grinding wheel. Especially the latter two effects, the plastic deformation layer and hardened layer of the surface layer formed are very directional. The metamorphic layer affects changes in the residual stress on the surface.
During the grinding process, the particles at each moment are equivalent to a cutting edge. However, in many cases, the front angle of the cutting edge is negative, and the grinding effect is to compress the surface of the workpiece (ploughing action), so that the surface plastic deformation layer. Increasing the degree of deformation of the deformation layer dulls the grinding wheel and increases the grinding feedrate.
At the instantaneous temperature at which the grinding heat of the working surface of the workpiece of the bearing makes the surface layer of the workpiece, the elastic limit of SKF drops sharply at a certain depth, and even loses the degree of elasticity. On the surface of grinding forces, in particular, the influence of compression and friction, caused by free stretching, base metals, surface compression (more plows), plastic deformation of the surface layer. The high temperature plastic deformation does not change, and it increases with the increase of the surface temperature of the workpiece during the grinding process.
Sometimes microhardness and metallographic analysis can be used to find that the hardness of the surface layer due to processing deformation is increased.
In addition, after grinding, forging of the surface decarburization layer and heat treatment heating, if not completely removed, the residue on the surface of the workpiece will also lead to soft surface, contributing to the early failure of SKF imported bearings.
SKF imported bearings, deep groove ball bearing parts manufacturing process documents can generally be divided into three categories: main process documents, process documents and tube inductive consumer process documents.
Secondly, what is the basis for the documentation of the deep groove ball process?
SKF imported bearings, deep groove ball bearings in accordance with: product design paper, product-related national standards, enterprise standards, external norms and rules, special customer requirements, equipment, technology and management level of science and technology enterprises, production scale and production layout.
Finally, is the process of deep groove ball bearings?
SKF imported bearings, deep groove ball bearing technology: mandatory, basic, operability, corporate image, etc.
SKF imported bearings, this bearing deep groove ball series is more famous has very strict control, the general bearing is not up to this level, so in each person's own choice, must see clearly.
