High-quality cold-rolled or hot-rolled steel sheets and strips are selected as raw materials. Based on product drawing requirements, steel with appropriate grade, thickness and surface condition is chosen. Incoming raw materials undergo rigorous chemical composition and mechanical property testing to ensure compliance with relevant industry standards and customer specifications.

Steel strips are precisely fed into the stamping die working area via automatic feeding equipment. High-precision sensors and servo control systems ensure consistent feed pitch and accurate positioning. For complex parts, multi-station progressive die designs are employed to achieve continuous, high-efficiency production cycles.

Specialized dies are installed on stamping presses, applying pressure to metal sheets through the interaction of punch and die to induce plastic deformation or separation. Depending on part requirements, single or compound processes such as blanking, piercing, bending, drawing and flanging are applied to obtain semi-finished or finished parts with required shapes and dimensions. Stamping offers high production efficiency, excellent dimensional accuracy and good consistency.

After stamping, part edges may have burrs or irregularities. Burrs are removed through vibratory finishing, barrel polishing or dedicated trimming dies, resulting in smooth and safe edges to ensure reliable subsequent assembly and usage. For precision parts, precision trimming processes control burr height within customer-specified ranges.

Key dimensions of stamped parts are inspected through sampling or 100% inspection using calipers, profile projectors, CMM and other measuring equipment. Statistical process control methods monitor production stability, ensuring each batch meets drawing requirements and quality standards. Qualified parts proceed to the next process or are packaged and stored.