As the steel technologies have increased the possibilities to make new and improved materials with excellent mechanical and corrosion properties, the need for matching advancements in weld properties has become increasingly apparent. Slag-melt reactions particularly relating to Cr and Si hold some key information for driving these improvements.
Magnesium is becoming an increasingly important material in the aerospace and automotive industries due to its low density, high resistance properties and ability to meet ever increasing targets to lower vehicle mass. Hot tears or basically cracks can occur when mush zones are separated from incoming liquid metal or when there is a uniaxial tensile load applied to the mushy region of the cast. Continue reading
The Plasma Transferred Arc welding technique is an evolutionary development of the more widely used Gas Tungsten Arc Welding process. Using a constrictor nose to harness and concentrate very high energy and restricting the electric arc using various gas control methods, PTAW is highly effective for specific welding cases. Continue reading