Chapter 10 Sheet Metal Design Chapter 10 Objectives
Chapter 10 Sheet Metal Design
Chapter 10 - Objectives • After completing this chapter, you will be able to perform the following: – Start the Autodesk Inventor sheet metal environment – Modify settings for sheet metal design – Create sheet metal parts – Modify sheet metal parts to match design requirements – Create sheet metal flat patterns – Create drawing views of sheet metal parts
Sheet Metal Fabrication • Sheet Metal Uses – Enclosures – Brackets – Structures or Frames
Sheet Metal Fabrication • Bend Tables • L=A+B-x Construction • L Unfolded Length • A Length of folded face 1 • B Length of folded face 2 • x Adjustment from bend table • Measurements A and B are to the intersection of the extended outer faces on either side of the bend. This intersection is used when the angle of the bend is less than or equal to 90 degrees.
Sheet Metal Fabrication • Bend Tables – L=A+B-x Construction • • L Unfolded Length A Length of folded face 1 B Length of folded face 2 x Adjustment from bend table • Use these measurements when the bend angle is greater than 90 degrees. The measurements are parallel to the face, and tangent to the outer surface of the bend. The same formula is used to determine the unfolded length of the part.
Sheet Metal Parts • Sheet Metal Design Methods – Folded State – Flat State – Disjointed Solids – Shelled Parts
Sheet Metal Parts • Sheet Metal Part Template(s) • Sheet Metal Environment
Sheet Metal Tools • Sheet Metal Styles – Stores sheet metal specific parameters of a part – Multiple sheet metal styles can be included
Sheet Metal Tools • Sheet Metal Styles – Bend Tab
Sheet Metal Tools • Sheet Metal Styles – Bend Transitions – Controls the intersection of edges across a bend in the flattened sheet.
Sheet Metal Tools • Sheet Metal Styles – Corner Tab – Relief Shape – Jacobi Corner
Sheet Metal Tools • Sheet Metal Face – Extrudes a closed profile a distance equal to the sheet metal thickness • Unfold Options • Relief Options
Sheet Metal Tools • Contour Flange – Created from an open sketch profile • Bends are added at sharp intersections
Sheet Metal Tools • Flange – Creates a sheet metal face and bend to an existing face – Extends the full length of the selected edge
Exercise 10 -1 • Creating Sheet Metal Parts
Sheet Metal Tools • Hem – Eliminate sharp edges – Strengthen an open edge of a face – Material is folded back over a face with a small gap
Exercise 10 -2 • Creating Hems
Sheet Metal Tools • Fold – Turns a flat pattern into a folded model – Add folds at sketched lines
Sheet Metal Tools • Bend – Child objects of other features • When two faced connect – Connect disjointed face
Exercise 10 -3 • Modifying Sheet Metal Parts
• Cut Sheet Metal Tools – Sheet Metal implementation of Extrude > Cut • Distance of the cut is equal to the Thickness parameter – Project Flat Pattern • Cut Across Bend • Define Distance
Exercise 10 -4 • Cut Across Bend
Sheet Metal Tools • Corner Seam – Created when three faces meet – Create mitered gaps between coplanar faces
Sheet Metal Tools • Corner Round – Sheet Metal specific Fillet tool • Corner Chamfer – Sheet Metal specific Chamfer tool
Sheet Metal Tools • Create Punch – i. Feature • • • Center Point Parameters Punch ID Custom Depth Simplified Sketch
Sheet Metal Tools • Punch. Tool – Center Point required – Creates Cuts and 3 D Deformations • Dimples • Louvers – Punch Folder • Applications Options > i. Feature tab – Flat Pattern • Representation
Exercise 10 -5 • Punch Tool
Sheet Metal Tools • Flat Pattern – Represents the starting point for sheet metal part manufacturing – Creates a 3 D model of the unfolded part • Displayed in a 2 D drawing view • Flat Pattern – Browser
Sheet Metal Tools • Flat Pattern – Extents – Edit Definition • Punch Representation – Flat Patten Features • Effect Flat Pattern Only
Sheet Metal Tools • Common Tools -Similar to the part Features Panel Bar – – – – – Work Features Holes Catalog Tools Feature Patterns Mirror Copy Object Derived Component Parameters Create i. Mate
Detailing Sheet Metal Designs • Detailing Sheet Metal Designs – 3 D Model and Flat Patterns
Exercise 10 -6 • Documenting Sheet Metal Designs
Applying Your Skills • Skill Exercise 10 -1
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