Metal shaping

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[[Image:DSC00409_%28Small%29.JPG]]
 
[[Image:DSC00409_%28Small%29.JPG]]
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HAMMER FORMS
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A hammer form is usually two pcs of wood or other materials used to sandwich a piece of metal in order to bend it to shape. Body filler and cement can also be used. These materials can be used for a complex shape.
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In the pics below, high density polyethylene sheet was used along with a 1/8" thick steel plate. This panel could have been done on the bead roller but was done with a hammer form for a more accurate shape. The plate was used to achieve a nice defined edge.
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[[Image:IMG_3413_(Medium).jpg]]
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The steel plate was used to mark out the blank on the sheet.
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[[Image:IMG_3414_(Medium).jpg]]
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The top piece of plastic is cut on an angle to allow for hammer clearance. The pieces in the pic below are arranged in the order in which they will be bolted together.
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[[Image:IMG_3416_(Medium).jpg]]
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[[Image:IMG_3417_%28Medium%29.jpg]]
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The hammer blows in the pic below are directed almost straight into the material with a slight downward trajectory. Tapping the edge into itself allows the material to shrink. This was done all the way around the sheet.
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[[Image:IMG_3418_%28Medium%29.jpg]]
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[[Image:IMG_3423_%28Medium%29.jpg]]
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The piece came out a little deformed as the edges on this piece were bent at different angles and shrunk at different amounts. The hand shrinker/stretcher are good for adjusting these edges.
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[[Image:IMG_3425_%28Medium%29.jpg]]
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[[Image:IMG_3428_%28Medium%29.jpg]]
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The slapper and post dolly were used to flatten out the curled edges.
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[[Image:IMG_3426_%28Medium%29.jpg]]
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The finished panel sitting in place on the car.
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[[Image:IMG_3385_%28Medium%29.jpg]]

Revision as of 20:19, 14 November 2011

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