Which of the following machines is used to finish wired edges prepared during metal shaping?

• A. Burring rolls
• B. Wiring rolls
• C. Flanging dies
• D. Crimping rolls

Answer: (B)

The choice regarding the machine used to finish wired edges prepared during metal shaping is indeed wired rolls. These rolls are specifically designed to take formed metal edges and improve their finish by shaping or smoothing them to achieve a desired profile or contour. This is particularly important in metalworking processes where edges must be carefully finished to ensure proper fitting, safety, and aesthetic quality.

Wired edges often require further refinement to eliminate sharpness and provide a clean, professional appearance, which is precisely what wiring rolls are engineered to do. They apply pressure and shape the material in such a way that the edges achieve the required curvature and flatness without compromising the metal's integrity.

The other options refer to different machines or processes that serve distinct functions in metal shaping. For instance, burring rolls are primarily focused on removing sharp edges, while flanging dies are used to create flanged edges or shapes in metal sheets. Crimping rolls, on the other hand, are generally used to create crimped joints or connections between materials rather than finishing wired edges. Thus, the functionality of wiring rolls makes them the optimal choice for finishing wired edges.