Sheet Metal Machining Size Guide
Here we present a basic guide to sheet metal fabrication including important design considerations to help improve part manufacturability, enhance appearance, and reduce overall production time.
|SIZE||39 in. x 47 in.||990.6mm x 1,193.8mm|
|BEND LENGTH||47 in.||1,193.8mm|
|FLAT PART||0.250 in. x 0.250 in.||6.35mm x 6.35mm|
|FORMED PART||0.500 in. x 0.500 in.||12.7mm x 12.7mm|
|Bends||+/- 1 degree||+/- 1 degree|
|Offsets||+/- 0.012 in.||+/- 0.304mm|
|Hole Diameters||+/- 0.005 in.||+/- 0.127mm|
|Edge to edge/hole; hole to hole||+/- 0.005 in.||+/- 0.127mm|
|Hardware to edge/hole||+/- 0.010 in.||+/- 0.254mm|
|Hardware to hardware||+/- 0.015 in.||+/- 0.381mm|
|Bend to edge||+/- 0.010 in.||+/- 0.254mm|
|Bend to hole/hardware/bend||+/- 0.015 in.||+/- 0.381mm|
|Features separated by two or more bends||+/- 0.030 in.||+/- 0.762mm|
Sheet Metal Material Thickness Chart
Because sheet metal parts are manufactured from a single sheet of metal, the part must maintain uniform wall thickness. Sheet metal thickness ranges from 0.024 in. (0.609mm) to 0.250 in. (6.35mm).
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