What is another term for cold drawing?

Cold drawing is a metalworking process that involves pulling metal through a die to reduce its diameter and improve its mechanical properties. The key characteristics of this process are that it occurs at room temperature and results in not only a decrease in cross-sectional area but also an increase in strength through strain hardening.

Referring to the term "hard drawn," it specifically refers to the outcome of the cold drawing process. The metal is described as "hard drawn" because the process enhances its hardness and tensile strength due to the significant deformation it undergoes. This term accurately captures the essence of the cold drawing operation, emphasizing its impact on the mechanical properties of the material.

In contrast, the other options, while related to different aspects of material processing, do not adequately describe the cold drawing process itself. For example, "cold lap steel" refers to a term used in specific fabrication contexts but does not match the definition or result of cold drawing. "Strain hardening" is a broad concept applicable to various cold working processes but does not directly synonymize with cold drawing specifically. "Oxidized steel," on the other hand, pertains to a type of corrosion treatment and is irrelevant to the cold drawing process. Thus, "hard drawn" is the most precise alternative