A method is disclosed for forming a brake rotor including a desired custom marking having a predetermined size and shape. The peptizer typically comprises a heteroaryl or a heterocyclic compound, other than morpholine as disclosed in assignee’s prior applications. At least one portion of the bimetallic strip has one of the metallic components removed by such means as chemical or electrochemical etching, mechanical milling, skiving, or grinding, the remaining component being connected to the collector and the other end of the strip serving as the terminal. A cutting die has a shearing punch configured to move along the single direction to sequentially engage the angled cutting edges to shear off an angled portion of the end section.