Relief Hole Sheet Metal

The previous notches can be used with a large bend radius if a relief hole or slot is used in the corner see bend reliefs.

Relief hole sheet metal.

In the corner relief propertymanager under scope select the sheet metal body to which to apply the corner relief. The minimum width of a bend relief is one material thickness or 1 50 mm 0 06 inch. Bend relief and collars near pierced areas strengthen sheet metal parts. Grain structure in the metal sheet is critical for avoiding cracks in sheet metal parts with lugs or tabs that are cut on.

You can add a corner relief to a single sheet metal body. If no relief distance is called out on the print and you are using a large bend radius with this type of notch then to be safe use a minimum distance of the material the bend radius. A 1 degree tolerance on all bend angles. To eliminate this a bend relief is added so the edge of the sheet metal is perpendicular to the bend.

Under corners click collect all corners to list all corners in the sheet metal body. Synchronous sheet metal is pretty cool even cooler than just normal synchronous modeling if you ll excuse that word. Click corner relief sheet metal toolbar or insert sheet metal corner relief. Relief cuts help parts avoid overhangs and tearing at.

While placing the holes in your drawing please keep in mind that you should not make. As per sheet metal design thumb rules the depth of bend relief should be greater than or equal to the inside bend radius of the bend and the width of the bend relief should be the same as the sheet metal thickness or more. Minimum hole size for sheet metal. Sweet relief how to avoid hole distortion in sheet metal parts sheet metal fabrication is an excellent method of making mechanical parts especially support brackets.

When designing parts for laser cutting one should not make holes smaller than the thickness of the material. They tend to be cheap light strong and easy to pack and ship. For example if you make a partial flange as above using all the defaults the software makes relief cuts at the end of the bends as shown to the right. In general a minimum bend relief is equal to the material thickness plus the inside bend radius.

In low carbon steel sheet metal the minimum radius of a bend should be one. Sheet metal parts may have sharp corners but designing a fillet of the material s thickness will make parts more cost effective. In this article i explain how to avoid hole distortion in sheet metal parts. Sheet metal parts with a minimum of 0 9mm to 20mm in thickness can be manufactured.