Fuse metal together by directing huge amounts of energy into small areas.
Sifts residue from tablet processing machines to salvage usable tablets and powder for reprocessing: Selects sieve according to size tablet being processed. Dumps residue from pail into sieve and picks out foreign matter and usable tablets. Places tablets in container and discards foreign matter. Shakes sieve to sift powder onto paper and pours powder into container. Weighs residue and records weight and identifying information on worksheet.