Edge Distance For Holes In Sheet Metal

Therefore the minimum distance between the extruded hole to edge if maintained.

Edge distance for holes in sheet metal.

Supplying 3d models without considering these factors increases the. A look at the formula for the edge distance or setback that is required when drilling rivet holes near the edge of a metal sheet. Extruded holes very close to the part edge can lead to sheet metal deformation or tearing. For holes the minimum distance between the hole s edge is 2 times the material thickness plus the hem s radius.

The minimum distance between holes is directly proportional to the size and shape for the hole feature and the material thickness. Though these calculations can help you approximate the minimum distance you ll need to place between a hole and the edge or bend in sheet metal different situations call for different specifications. The strength of riveted met. Recommended minimum distance between holes between forms and from edges of sheets if holes and forms are placed any closer to each other or to edges of sheets than is given below they may distort each other or the material.

Minimum 2 times material thickness between hole and edge of sheet. The minimum distance the edge of a hole should be from a form is three times the material thickness plus the bend radius. Minimum 2 times material thickness between holes. Center of extruded holes a 5 hole dia 2t extruded hole and bend edge c 3t r d 2.

Extruded hole to part edge b 3t d 2. If rivets are placed to close to the edge of the sheet the sheet is apt to crack or pull away from the rivets. For bends the minimum distance between the inside edge of the bend and the outside of the hem should be 5 times material thickness plus bend radius plus hem radius. If they are placed too far away from the edge the sheet is apt to turn up at the edge.