How To Bend Sheet Metal For Ductwork

To remove irregularity or improve uneven bends place a hardwood piece lengthwise along the bend and hit the bend with increased strength using a heavy duty hammer or mallet.

How to bend sheet metal for ductwork. To form the operator marks the bend line on the sheet as a guide then lines it up with punch tip and performs a shallow bend. How do you bend a flat sheet of metal into a rectangle or l section if there is a profile rollformed on the two vertical edges of the blank as it approaches the braking station. Simple sheet metal bender using a hand roller clamps and plywood. Monkeys spinning monkeys by kevin macleod.

A second bend is made across this initial one leaving an x impression on the sheet. Slide the backing up and over the pipe. Cross braking is done using benders like this one from roto die. If the ducts are going to be concealed all seams need to be taped or caulked.

Leave backing on the tape on metal ductwork. Peel off part of the backing. Cut a piece of foil tape to length.