QUESTION: Which welding process might a medical equipment manufacturer select for welding an
aluminum workpiece, without filler metal, that requires a strong joint?
POSSIBLE ANSWERS:
Oxyfuel welding
O Laser beam welding
O Flux-cored arc welding
O Shielded metal arc welding

The welding process the equipment manufacturer should select for welding an aluminum workpiece, without filler metal is;

Laser beam welding

Explanation:

Laser beam welding (LBW) is a welding process that is used, usually without the addition of filler metal, for joining two or more metals pieces or thermoplastics together with the use of a concentrated and focused source of heat that results in the fusion of the material pieces and a strong weld

The laser beam can be used to weld a material unto itself, which makes it a useful process in the medical and jewelry industries for welding small items together without the addition of filler materials

For welding an aluminum workpiece, without filler metal, the equipment manufacturer should select laser beam welding.