About Us

Alireza Samimi Mottaghi founded the Professional Welding Clinic and has over 20 years of experience in welding, quality assurance, and quality control.

BS in Industrial Metallurgy Engineering (Material Science)—Graduated: March 2001


  • Certified International Welding Engineer (Weld Australia)
  • International Welding Engineer (IWE Diploma)
  • European Welding Engineer (EWE Diploma)-EWF
  • CSWIP 3.2 (Senior Welding Inspector)-TWI
  • Certified Welding Supervisor on Pressure component (Weld Australia)
  • Welding Supervisor AS1796 (Pressure Vessel)-CERT10-Weld Australia
  • Certified Welding Supervisor on steel Structures (AS 2214-Weld Australia)
  • Welding Supervisor AS2214 (Steel Structure)-Weld Australia
  • Certified Coating Inspector (NACE)
  • Welding Inspection and Metallurgy, API 577
  • Liquid Penetrant Testing (PT) ASNT Level II
  • Visual Welding Inspection (VT) ASNT Level II
  • Magnetic Particle Testing (MT) ASNT Level II
  • Radiographic Testing (RT) ASNT Level II
  • Authorized welder examiner according to ISO9606 (Weld Australia)
  • Lead Auditor: ISO 9001
  • Lead Auditor: ISO 14001
  • Lead Auditor OHSAS 18001
  • Internal auditor: ISO 3834
  • OSHA (Health AND SAFETY) Certificate

Lecturing Experiences

  • Part 2,4.6 of IWE Courses (Quality control during manufacturing in International welding engineering course)
  • Welding inspection according to CWI.
  • Designer of questions for IWS courses in WTIA Australia

The effect of rate of cooling on the segregation Sn on alloys of Cu-Sn
Review of the mismatches in welder qualification standard “EN 287-1” from 2003 to 2010 (Advance Welding Seminar ASIA WELDING FEDERATION in Indonesia, 2011)
Review of the mismatches in welder qualification standard “ISO 9606”


  • Cooperation with WTIA (Weld Australia) for providing exam questions and marking the exams
  • Cooperation with clients, such as:
    • (ITALY) ANSALDO ENERGIA (Welding Engineering/Inspection/Quality control activities for Steam and Gas Generators)
    • GENERAL ELECTRIC (Welding Engineering/Inspection activities for Hydro Generators)
    • SIEMENS (Welding Engineering and Inspection activities for Tank, Steam and Gas Generators, and oil Compressors)
    • ALSTOM (Welding Engineering/Inspection activities for Hydrogen)
    • ELIN (Welding Engineering/Inspection activities for Hydro) Generator
    • TUGA (Welding Engineering/Inspection activities for Turbine and compressors)
    • OTC (Welding engineering and inspection activities for piping and compressors)
    • FARAB (Welding engineering and inspection activities for Steel structures)
    • Norway (DNO) (welding engineering and inspection activities for Pipeline gas, oil and piping)
    • Orica (NDT)
    • RMS (Steel Fabrication and Bridge work)