When grinding titanium plates with silicon carbide and alumina grinding wheels, the abrasive debris is easy to attach to the surface of the grinding wheel, the grinding force is large, and the grinding wheel is severely worn, which reduces the surface quality of the workpiece.
1) The relationship between grinding force and each grinding parameter. Selecting reasonable grinding parameters to control the size of the grinding force to improve the quality of the grinding is the key to the grinding of titanium plates. The grinding force in the grinding process of titanium plates is composed of cutting and conflicts. The shares held vary. The chip deformation force is the most important in the grinding of titanium plates, accounting for about three times the conflicting force in the grinding force. But compared with the usual metal data, its conflict force accounted for a much larger share. This has a great relationship with the nature of the titanium plate material. The titanium plate has a small elastic modulus, low thermal conductivity, high chemical activity, stickiness and toughness. Grinding wheels are severely adhered during grinding, resulting in increased conflict forces. The conflicting force is less affected by the linear velocity of the grinding wheel, and is greatly affected by the grinding depth. Therefore, it is necessary to control the grinding force, because the appropriate grinding depth and grinding linear speed are selected. In the grinding of titanium plate, the conflict coefficient is added with the linear velocity. In conflict theory, the relationship between the conflict coefficient and relative sliding. Only when the load becomes larger, the collision coefficient tends to increase with the increase of sliding speed. In grinding, each abrasive grain is subjected to considerable stress. All conflict coefficients are greatly affected by changes in grinding parameters.
2) The linear relationship between the chip deformation force and the grinding depth. Because of the existence of scale effect, it starts from the basic principles of fracture mechanics. In fact, the grinding process is the process of crack expansion. The scale effect is mainly caused by the chip deformation force in the grinding force. The relationship between the metal removal rate and the normal grinding force does not only depend on the workpiece data and the dressing condition of the grinding wheel, because the same has the effect of scale effect.
3) Grinding depth has a great influence on the metal removal ratio, because of the effect of scale effect. The influence of the workpiece speed is much smaller, so that the normal force is nonlinearly related to the metal removal ratio.
Summarize the above: Grinding titanium plate data should select grinding parameters: speed 45M/S, cutting depth 0.01-0.02mm.