Transient Discharge Cold-Welding (TDC) designed for optical mold repair. It delivers ultra-low heat input with near-zero Heat-Affected Zone (HAZ)—no temper color or shadow—so the mold steel hardness and microstructure remain unchanged. The repaired area is EDM/milling/grinding/polish-ready, achieving optical-grade surfaces on PMMA/PC lenses, light guides and reflectors.
Key benefits: low-heat, no-shadow repair; on-site/local repair with minimal downtime; high bond strength, machinable and wear-resistant; easy to use (low fume, no flux, no argon); ideal for parting lines, pinholes/porosity, chipped edges, scratches and hole-edge damage.