And again knowing where to stretch metal is more difficult than stretching it because stretching metal only involves making it thinner and thereby laterally broader.
How to stretch sheet metal by hand.
Using protective gloves hold the free end of the metal sheet with one hand and with the other hand use a mallet or hammer to begin bending the sheet down and around the curved radius of the wood form.
Now that you know your bend allowance take your protractor and draw a clear line with your marker across the point at which you will bend your sheet metal.
Using the hammer and dolly method a dent crease or dimple can be made smooth again without the use of a welder or body filler.
Cut it bend it shrink it and stretch it.
After all there are only four things you can do to metal.
Having the right tailor made tools for shaping shrinking and stretching metal you re about to undertake can help you properly and quickly repair damaged sheetmetal and bodywork.
Mark your bend lines.
You can do this by hitting it between a body hammer and a dolly or with a planishing hammer or other type of power hammer.
Start at one end and slowly work down to the other.
Stretcher the opposite of the shrinker mentioned above.
Then use your bend allowance to draw your second bend line the intervening distance between your bend lines bend radius.
The metal worker finds the dent in the metal then places the dolly on the back side of the damaged area.
With a combination of these manipulations you can create anything from flat sheet and you.
This is a mechanically operated tool that puts the metal between two flat textured jaws and pulls the metal apart slowly each time the lever or.
Metal can also be stretched in a similar method by using a sandbag and plastic mallets to quickly stretch metal and make shapes.