noun
thread rolling; form rolling
A metalworking process that forms threads or profiles by pressing a rotating die against the workpiece, rather than cutting. Used in manufacturing of bolts, screws, and similar parts.
転造は切削に比べて材料の無駄が少ない。
Thread rolling produces less material waste compared to cutting.
このボルトは転造で作られている。
This bolt is made by thread rolling.