本规范涵盖使用等离子弧定向能量沉积（PA-DED）添加剂制造工艺在Ti-6Al-4V基板上制造的预制件，其沉积宽度和厚度达到5.5英寸（140 mm），并经过沉积后应力消除热处理。这是一种线喂添加剂制造工艺。如果首席执行官要求，预制件可能需要后续加工，以满足其预期最终零件应用的要求。

This specification covers preforms fabricated up through 5.5 inches (140 mm) inclusive in deposition width thickness (see 8.2.5) using a Plasma Arc Directed Energy Deposition (PA-DED) additive manufacturing process on a Ti-6Al-4V substrate that are subjected to post-deposition stress relief heat treatment. This is a wire fed additive manufacturing process. If required by the CEO, preforms may require subsequent machining to meet requirements for their intended final part application.