The shape and orientation of the steel wire cut shot have a great influence on the abrasive

　　The size, shape and orientation of cut wire shots have a great influence on abrasive wear. They affect the load and stress from elastic to plastic contact and cause changes in critical fracture indentation dimensions and groove dimensions.

　　Conversely, if the wire cut shot load and hardness are constant, the contact area is also constant, depending on the size and shape of the abrasive. The value of d/A increases when the apex angle of the pyramid, the apex angle of the cone, and the radius of the sphere decrease. The 4/4 value of a sphere is often smaller than that of a pyramid or cone, so the wear rate of sharp abrasive grains is higher than that of round blunt abrasive grains, especially because the indentation depth F of the cone is larger, and it is easy to exceed t (critical indentation depth ), resulting in the occurrence and propagation of cracks.

　　It seems to be very difficult to quantitatively calculate the wear rate based on the size and shape of the abrasive under actual working conditions, although it is currently being explored. Because in any environment, the size of the abrasive is always within a certain range, and the size, shape, and orientation are not uniform, and in the process of wear, the abrasive still has flaky cracks, and the contact area of the steel wire cut shot usually only accounts for the total area. 10~30% of that. The wear rate of cut wire shot depends not only on the size, shape and orientation of the abrasive, but also on the properties and friction coefficient of the surface layer of the material.

　　Therefore, the shape and orientation of the cut wire shot have a great influence on the abrasive, so we must pay attention to it.