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How to dimension cross break sheet metal.
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A cross break in sheet metal is when multiple obtuse bend angles of approximately 170 are made across a flat section thin metal.
159 solidworks sheet metal tutorial cross break reason real examples single and multiple faces 4 duration.
The crossing ridges stiffen the face of the metal and help prevent is from buckling under a load.
You can edit the cross break sketch to move corners and change relationships.
Cross breaks are most commonly in an x shape forming a slight pyramid shape in the metal without overly distorting it.
Crowning is controlled on modern brakes with internal hydraulic systems which can help equalize pressure.
The dimensions of a part with a cross break are not changed.
When you create a drawing of a sheet metal part with a cross break the flattened view is labeled with the bend direction bend radius and bend angle.
A question we sometimes get in the solidworks sheet metal course is how to insert a 3d cross break.
Since each metal fabricator has its own tooling bend factors and equipment to develop the flat blank it is better to fully dimension to formed views for that manufacturer.
Cross break light bends added to sheet metal in order to stiffen its surface.
Your manufacturer may not be able to match dimensions when creating the actual sheet metal part due to tooling and equipment limitations.
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The functionality seems to be there in the solidworks cross break command on the sheet metal toolbar but upon inspection the cross break it inserts is merely cosmetic.
Cross braking is a technique performed using a press brake.
When used correctly this bending method offers a very cost effective way of strengthening your parts.