Home / Experts / Dr. Michael Fletcher

Dr. Michael Fletcher

Dr. Michael Fletcher is CEO of Delta Consultants and an independent consultant for Huntingdon Fusion Techniques HFT, Email

Articles by Dr. Michael Fletcher

Welding New Nickel Alloy

Inconel 740H and other new superalloys provide major improvements in mechanical properties and corrosion resistance at elevated temperatures, but they still need careful purging during welding in order to preserve these characteristics.

Seven Tips for Inert Gas Weld Purging of Pipes

Effective weld purging can only be achieved by making sure that any residual oxygen is displaced from the purge zone prior to and during welding to prevent significant loss of corrosion resistance and a reduction in joint strength. Here are some insights on how to properly conduct and monitor this process to ensure compliance.

Calendar & Events
AmCon Orlando
April 27 - 28, 2021
Orange County Convention Center – Orlando, FL
Greater Chicago Design-2-Part Show
August 3 - 4, 2021
Schaumburg Convention Center – Schaumburg, IL
MD&M West
August 10 - 11, 2021
Anaheim, CA
rapid + tct
September 13 - 15, 2021
Chicago, IL
September 13 - 16, 2021
Chicago, IL
Wisconsin Manufacturing & Technology Show
October 5 - 7, 2021
West Allis, WI