US 12,569,895 B2 · Systems, compositions, and methods for producing sharp edges

Abstract

The present disclosure is directed to systems, compositions, and methods for manufacturing objects with sharp edges having a high strength and hardness. To form the sharp edge, an object can be subjected to a compressive force that locally deforms the object to create the sharp edge. In some embodiments, deformation can occur by passing the material through a system of one or more opposed tapered rolls having one or more tapering angles for deforming the material. The tapered rolls can rotate and drive the material downstream to a next opposed pair of tapered rolls. The tapered rolls deform the material by changing the material microstructure, compressing the grains of the material in a predetermined location to create a more homogeneous microstructure. The local modification of the resulting microstructure increases the homogeneity as well as the hardness and strength of the material and prevents cracking and/or chipping of the material.

Claims20

Dependent claims

A deformed material, comprising:

a length of metallic material having a substantially homogeneous microstructure in at least a deformed portion thereof that terminates in a sharp edge that is formed from a notch, with the homogeneity of the metallic material increasing across the length of the metallic material such that the homogeneity is highest at the notch, the substantially homogenous microstructure having a plurality of deformed grains of a substantially uniform size that are smaller in size than the grains in one or more of a non-deformed portion of the length of metallic material and the grains in the deformed portion prior to deformation.

Dependencies are inferred from the claim text.

Systems, compositions, and methods for producing sharp edges

Life of this patent

Systems, compositions, and methods for producing sharp edges

Life of this patent

Abstract

Claims20