Summary of systematic solutions: Mold surface revolution: Ra≤0.1μm (mirror polishing) + DLC coating (HV≥2500) in key areas Plasma cleaning every 50,000 strokes to restore surface activity Tribological control: Use nanoparticle lubricant (particle size <100nm) Mold temperature is controlled at 50±5℃ (hot runner temperature control system) Material upgrade: Select ultra-deep drawing materials (r value >2.0, n value >0.25) Material cleanliness control (T.O≤15ppm, N≤30ppm) Intelligent monitoring: Deploy surface defect AI detection system (accuracy >99.9%) Real-time collection of stamping vibration spectrum (avoid 500- 800Hz resonance band) Special working conditions: High-strength materials (σ_b ≥ 1000MPa): Use hot stamping process (930℃ quenching) Preheat the mold to 300-400℃ (reduce flow stress) Stamping of welded plates: Add a flexible cushion layer (PU material, hardness 70A) to the laser welding area Differential lubrication by region (increase the coating amount in the weld area by 50%) Through comprehensive measures, the burr defect rate can be reduced to below 0.1%, the mold maintenance cycle can be extended by 3-5 times, and the product surface quality level can be significantly improved (reaching Class A surface standard).
