At Panek Precision Inc., a Northbrook, Ill., machine shop, 21 shiny new robots hum as they place metal parts into cutting machines and remove the parts after they are done. It’s a tedious and oily task once handled by machine operators who earn about $16.50 an hour.

http://m.us.wsj.com/articles/robots-work-their-way-into-small-factories-1410979100?mobile=y