Page 600 - Subyek Computer Aided Design - [David Planchard] Engineering Design with SOLIDWORKS

Top-Down and Sheet Metal Parts Engineering Design with SOLIDWORKS® 2018

Sheet Metal Overview

Sheet metal manufacturers create sheet metal parts from a flat piece of raw material. To

produce the final part, the material is cut, formed and folded. In SOLIDWORKS, the

material thickness does not change.

Talk to colleagues. Talk to sheet metal manufacturers. Review other sheet metal parts

previously designed by your company. You need to understand a few basic sheet metal

definitions before starting the next parts, CABINET and BRACKET.

The CABINET begins as a solid part. The Shell feature determines the material

thickness. The Rip feature removes material at the edges to prepare for sheet metal bends.

The Insert Sheet Metal Bends feature transforms the solid part into a sheet metal part.

The BRACKET begins as a sheet metal part. The Base Flange feature is the first feature

in a sheet metal part. Create the Base Flange feature from a sketch. The material

thickness and bend radius of the Base Flange are applied to all other sheet metal features

in the part.

There are two design states for sheet metal parts:

0 0
• Formed.

r

• Flat. 0 0

Design the CABINET and BRACKET in the formed
Formed State Flat State

state. The Flatten feature creates the Flat Pattern for BRACKET

the manufactured flat state.

Sheet metal parts can be ·-

created from the flat state.

Sketch a line on a face to ...
N

~
indicate bend location. Insert ~

v

the Sketched Bend feature to

create the formed state. v

Flat State Sketched Bend Lines Formed State

Bends

Example: Use a flexible eraser, 50mm or longer. Bend Neutral Bend Line

the eraser in a U shape. The eraser displays tension

and compression forces. Tension Forces

•••••••••• ••••••
•••••• ••••••
•••• • ••
••• • •••
The area where there is no compression or tension is •• ••••• •• •• • •• • • ••• •••

•
•
•
•
•
•
called the neutral axis or neutral bend line. ....____ . ...._: __,Compression....____: __,
•
•
Forces

Eraser Exam pie

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