Sheet Metal Design

  1. Hole and Cutout Design
    1. Hole Size Requirements
      1. Minimum Diameter Rules
        1. Thickness Relationships
          1. Punching Limitations
            1. Drilling Considerations
            2. Hole Spacing Rules
              1. Center-to-Center Distance
                1. Edge Distance Requirements
                  1. Structural Integrity
                    1. Tool Clearance
                    2. Hole-to-Bend Relationships
                      1. Minimum Distances
                        1. Distortion Prevention
                          1. Sequence Planning
                            1. Quality Considerations
                            2. Cutout Design
                              1. Corner Radius Requirements
                                1. Stress Concentration Avoidance
                                  1. Manufacturing Feasibility
                                    1. Tool Wear Considerations
                                    2. Special Hole Features
                                      1. Countersinks
                                        1. Counterbores
                                          1. Threaded Holes
                                            1. Slotted Holes

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                                          5. Bending Design Rules

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                                          7. Notch and Tab Design