What should you assess when grading the appearance of a brazed joint?

When grading the appearance of a brazed joint, it is essential to assess factors that indicate the quality and integrity of the joint. Evaluating burns, squareness, or oxidation provides critical insight into both the visual aesthetics and the potential structural integrity of the joint.

Burns may indicate excessive heat during the brazing process, which can weaken the connection or lead to a failure in certain materials. Squareness refers to the alignment of the joint, which is important for ensuring that the components fit together properly and function as intended in the final application. Oxidation is a sign of contamination that can occur during brazing, leading to poor bonding and reduced strength.

Collectively, these elements not only affect the joint's appearance but also serve as indicators of the brazing process's effectiveness and the durability of the joint in service. Therefore, assessing these characteristics is crucial for determining the overall quality of a brazed joint.