Tip-Tiger

       In a complete mining process, the stress on the working surface of the bucket teeth varies at different stages of operation. When the tooth tip initially contacts the material surface, due to its high speed, the tooth tip of the bucket teeth undergoes intense impact. When the yield strength of the bucket teeth is low, plastic deformation occurs at its tip. As the digging depth increases, the forces acting on the bucket teeth change. When the bucket teeth cut through the material, the relative motion between the teeth and the material generates a significant positive compressive pressure on the surface, leading to substantial friction between the working surface of the bucket teeth and the material. If the material is hard, such as stones or concrete, the friction will be significant. The repeated action of this process causes varying degrees of surface wear on both the working surfaces of the bucket teeth, resulting in relatively deep grooves. The normal pressure on the front working surface is significantly greater than that on the rear working surface, leading to severe wear on the front surface. It can be concluded that normal pressure and friction are the main external mechanical factors contributing to the failure of bucket teeth, playing a crucial role in the failure process. Therefore, the composition of bucket teeth affects their service life.