Vacuum Arc Remelt Process
Vacuum Arc Remelting offers improved part performance, and is required for many aerospace applications including landing gear, flap tracks, airplane engines and missile components. During Vacuum Arc Remelting (VAR), also known as Consumable Electrode Vacuum Melting, an electric arc is struck at the tip of an air melted ingot. The ingot, which is sometimes called an electrode, melts within a vacuum sealed crucible. As the melting electrode drips into the bottom of the vessel, the surface area of each falling drip is exposed to the environment of the vacuum, which removes any residual gasses from the alloy. The chemical and physical uniformity of the material is significantly improved when melting in this way. Dissolved gasses such as hydrogen, nitrogen and oxygen are removed and the frequency of non-metallic inclusions is reduced. The resulting remelted material has much improved mechanical properties, including greater tensile ductility as well as superior impact and fatigue resistance, particularly in the transverse direction.
Our melt shop houses 6 VAR furnaces capable of producing VAR ingots up to 40" in diameter and approximately 45,000lbs in weight. Other standard sizes include 20", 24", 30" and 32" diameter ingots. We have full product testing available including immersion UT. For pricing and deliveries on VAR ingots, please call us at 330-580-9600 ext 312, or submit a request for quote electronically. |
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