Calculate the RWL and the LI for the following task. As forgings exit a cooling bath, they are loaded into various tumblers for finishing. Each forging weighs 15 pounds and is lifted from a conveyor that is 36 inches high to a tumbler that is 48 inches high. The forgings are relatively small, so the hands are only 5 inches from the waist. The process completes a forging every 10 seconds. The coupling is considered fair, and the operator works a full 8-hour shift.

Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10

What is the heat treatment of metals? what is the benefit of it? why and how it's useful? answer in details, do not write by hand.

Wiy doeres rere okhn a pump whon working betwon the same pressure range?