Foundry Defect Welding is the specialized process of restoring castings that contain defects formed during the metal casting process. Instead of scrapping expensive cast components, welding is used to repair and recondition them to meet required dimensional and structural standards.

At Trishul Welding Solutions Pvt. Ltd., we provide expert foundry defect identification, welding repair, finishing, and requalification for cast iron, cast steel, SG iron, aluminium, bronze, and other cast materials.

Materials We Repair Through Defect Welding

  • Cast Iron (CI)

  • Ductile / SG Iron

  • Cast Steel

  • Alloy Castings

  • Aluminium Castings

  • Bronze & Brass Castings

  • Manganese Steel (with specialized process)

Our Foundry Defect Welding Process

  • Defect identification (visual, grinding, DPT, radiography if required)

  • Proper removal of defective area

  • Preheating (if applicable) for CI/SG iron & cast steel

  • Selection of correct filler rod/electrode

  • Controlled welding with minimum heat input

  • Peening between weld passes to relieve stress

  • Slow cooling in insulation or furnace

  • Grinding/Machining to final size

  • Quality inspection & testing

Benefits of Our Foundry Defect Welding Services

  • Saves cost by repairing expensive castings

  • Restores structural integrity

  • Extends service life of cast components

  • Prevents downtime in manufacturing

  • High welding accuracy and finishing quality

  • Ability to handle small, medium, and heavy castings

Industries We Serve

  • Foundries & casting units

  • Automotive & heavy engineering

  • Pumps & valve manufacturing

  • Agriculture & earthmoving equipment

  • Railways & defence

  • Chemical & process industries

  • Power generation & utilities