Understand the Lubrication in Cold Forging
Cold forging is a high-precision metal forming process performed at room temperature, offering excellent material utilization and near-net-shape capability. However, it involves high contact stress and severe friction, making lubrication and surface condition critical to tool life, forming stability, and product quality. This article reviews cold forging fundamentals, lubrication mechanisms, surface roughness effects, and common lubricant types, along with selection principles for different materials and temperatures. It highlights how proper lubrication improves efficiency, reduces wear, extends die life, and enhances overall manufacturing performance.