How To Shrink Sheet Metal With Heat

Start by placing the sheet metal over the bowl so it covers the bowl and lays as flat as you can hold it.

How to shrink sheet metal with heat.

You do not want to heat a new area of metal before the preceding area has cooled so be patient. This works the other doesn t. The bulge can then be tapped down flat with a hammer and dolly to thicken the metal in that spot. Heat to blue only and shrink that much.

Welding suppliers carry a wide. Once red hot quickly work the area with hammer and dolly to gather the metal into the centre of the cherry then deliver a swift blow to the centre of the heat shrink to push the metal back into itself. Propane can do the same thing although it is a much more crude method. Start by heating a small area around the size of a dollar coin in a tight circular motion working into the centre to give the metal a cherry.

If you ve done it right this action will cause the metal to pucker on the edge and give you a little ripple or ridge. Need a fix for oil canning auto body panels. Before you start working the precious metal on your hot rod try heating and hammering some scrap. In this very short video i will show you how to repair shrink sheet metal and stiffen body panels the easy wa.

Heating up metal and throwing cold water on it may shrink it a tiny bit but it makes distortion and hard steel. At 550 degrees f you can shrink the aluminum without affecting the temper or hardness. Then take your teardrop mallet and make one hard blow on the metal driving down and towards the outside of the bowl. A common recommended fix is to use oxy acetylene heat to create a localized hot spot that bulges the metal above the mean surface of the panel.

Because of this you need to check the surface temperature with heat crayons. This takes away some of the stretch.