Dr. Michael Fletcher
Articles by Dr. Michael Fletcher
More Manufacturers Take a Closer Look at Wire Arc Additive Manufacturing (WAAM)
Unlike powder-based additive manufacturing, this second method of additive manufacturing uses a standard high-deposition process and readily available materials. Wire arc additive manufacturing (WAAM) is particularly cost-effective for prototypes and small-batch production runs.
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.
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