A grinding roll wheel includes an annular body having a front surface, a rear surface, a circumferential surface, and a central cavity. Tungsten carbide is layered or otherwise attached onto a circumferential surface. The tungsten carbide can be applied to the circumferential surface with a MIG weld, a weave weld, or a stringer bead. The grinding roll wheel of the present disclosure may be implemented into a roller mill for comminuting feed material. Grain, ore, gravel, plastic, and the like may be used as the feed material. If grain is used, flour may be produced by comminuting the grain.

A method for producing a machining segment from a first powdered matrix material and first hard material particles arranged according to a defined first particle pattern, includes: applying a powdered supporting material as a supporting layer with a melting temperature higher than the first matrix material, arranging the first hard material particles according to the defined first particle pattern in the supporting material with a depth of penetration, applying a first layer of the first matrix material to the first hard material particles and the supporting material and fusing the first layer by a powder bed fusion method, and performing a sequence of a plurality of steps N times, N1, wherein, in a first step of the sequence, a layer of the first matrix material is applied to the layer structure, and in a second step of the sequence, the layer of the first matrix material is fused by the powder bed fusion method and connected to the layer structure.

The present disclosure relates to an abrasive article including a body having a bond material including metal and a micro-porosity within the bond material with an average pore size (D50) of not greater than 10 microns and a pore size standard deviation of at least 0.2 microns, and the body further includes abrasive particles contained within the bond material and having an ellipticity of not greater than 1.18 or an average toughness of at least 11257 cycles.

The disclosed technology includes a cutting tool comprising segments arranged around a periphery of a cutting tool. Each segment, of the plurality of segments comprising a first portion comprising a first material having a first hardness, a second portion comprising a second material having a second hardness, the second hardness being less than the first hardness, and a transition region. The transition region can include at least part of the first material and at least part of the second material. The transition region can have an overall third hardness that is less than the first hardness and greater than the second hardness. A first segment and a second segment of the plurality of segments can be attached to the periphery of the cutting tool such that at least the first portion of the first segment is aligned in a cutting direction with the second portion of the second segment.