Which sheetmetal capability is NOT listed as a capability in the lab?

• A. SHEAR
• B. BRAKE (BENDING MACHINE)
• C. PUNCH PRESS FOR CREATING HOLES
• D. DEEP DRAWING/ STRETCH FORMING

Answer: (D)

The question tests what sheet metal processes are typically available in a general lab and which ones are more specialized. The lab’s listed capabilities cover basic, common operations: shear for cutting, brake bending for forming simple angles, and a punch press for creating holes. These are single-step, standard tools you’d expect to find in many shop labs.

Deep drawing and stretch forming, on the other hand, are more advanced forming processes. Deep drawing uses a draw die and a press to pull a blank into a hollow shape, often requiring multiple stages, specialized tooling, blank holders, lubrication, and precise control. Stretch forming involves enlarging and shaping sheets over a form with specialized equipment, like stretch frames, and is typically used for large curved panels in aerospace or automotive applications. Because these require distinct equipment, tooling, and process control not mentioned in the lab’s capabilities, deep drawing/stretch forming aren’t listed as available capabilities in this lab.