Why Straightening Machine Matters for Metal Post‑Drawing Treatment

After cold drawing, metal bars and tubes often generate bending, twisting or shape distortion caused by drawing stress and material resilience. A straightening machine undertakes the post‑processing task to correct such geometric defects.

Straightening machines apply multi‑point mechanical pressure or rolling force to deform workpieces slightly in reverse direction, eliminating bending deformation and achieving required straightness. It can handle round bars, square bars and tubular workpieces. Good straightening performance guarantees follow‑up cutting, turning and other machining procedures.

Without effective straightening, semi‑finished metal materials will cause tool shaking, inaccurate cutting length and high scrap rate in subsequent processes. Operators should adjust roller gap and pressing force according to material diameter and hardness. Proper maintenance keeps straightening rollers in good condition, delivering straight, stable blanks for downstream manufacturing.