solidedge 403

Unrestricted © Siemens AG 2013 All rights reserved.

4th Generation VLC courtesy of Edison2

#SEU13

403 - Getting the Most Out of Sheet Metal Modeling Jeff Walker, Product Planning Manager, Siemens PLM Software


Siemens PLM Software

4th Generation VLC

courtesy of Edison2

Agenda: 403 - Getting the Most Out of Sheet Metal

Modeling

Who am I?

What you will learn

Solid Edge capabilities

Demonstrations

Benefits of this topic

How to learn more



About: Jeff Walker

Jeff Walker

Product Planning Manager


Jeff has a bachelor’s degree in Mechanical Engineering

from Auburn University. Prior to his role in the Solid Edge

Planning organization he was a stress analyst for the US

Army Missile Command using FEA tools to conduct studies

of missile systems and related equipment. Jeff has over 25

years of experience in the mechanical CAD and CAE

software industry.



What you will learn

This session will show the fundamentals of sheet metal modeling in Solid Edge

and how to take your designs a step further with new capabilities in Solid Edge

ST6. Attendees will learn the common concepts from basic sheet metal modeling

to flat pattern creation. Techniques and workflows will be shown for creating

sheet metal designs in part documents, part features in sheet metal documents,

and how to get comfortable with designing sheet metal models using

synchronous technology.



Topics

• Solid Edge Sheetmetal - Introduction

• Sheet Metal Features

• Defining Gage

• Defining Bend Properties

• Defining Neutral Factor

• Overriding Sheet Metal Properties

• Sheet Metal Parts – Straight Brake & Rolled

• Sheet Metal Features on Part Models

• Quick Enhancements

• Flatten Enhancements

• Transform to Sheet Metal

• Breaking into Sync Sheet Metal

• More….

• Questions?

ST6

ST6

ST6



Solid Edge Sheet Metal - Introduction

• Dedicated document type (.psm)

• Dedicated environments

• Modelling (Synchronous & Ordered)

• Creation of Sheetmetal model with dedicated Sheetmetal commands

• Flatten

• Create flat patterns for drawings with bend centerlines

• Simplify

• Simplify Sheetmetal models for large assemblies

Demo



Sheet Metal Features

• Basic features

• Tab

• Flange

• Advanced features

• Contour Flange

• Lofted Flange

• Hem

• Deform features

• Dimples

• Louver

• Drawn cutouts

• Beads

• Gusset

• X-Brake

• Etch

• Emboss

Supporting features

Insert Bend

Unbend

Re-bend

Jog

Detailing features

Holes

Slots (ST5)

Cuts

Normal Cuts

Break Corner

Corners

2 bend corners

3 bend corners

ST6

Demo



Defining Gage

• Material

• Application->Properties->Material Table->Material Tab

• Gage

• Application- >Properties->Material Table->Gage Tab

• Associate with Material moved from Material page drop down to Gage tab ST6

Demo



Defining Bend Properties

• Bend Radius

• Application- >Properties->Material Table->Bend Radius

• Tools->Variables->BendRadius

• Bend Relief

• Application- >Properties->Material Table->Relief<Width/Depth>

• Tools->Variables-> Relief<Width/Depth>

Demo



Defining Neutral Factor

• Neutral Factor

• Application- >Properties->Material

Table->Gage Tab

• “Use Excel File”

• Users can use “Gagetable.xls”

to define their own materials,

bend radii, bend reliefs and also

neutral factors for various bend

radii and bend angles.

• “Bend Equation group”

• Users can define their own neutral

factor through a VB program

• Tools->Variables->Neutral Factor

• Neutral factor can also be defined

for each individual bend in Sync or

per feature in Ordered

Demo



Overriding Sheet Metal Properties

• In Ordered bend parameters (Radius, Bend relief & NF) can be overridden at

the feature level

• Feature->Options

• In Sync bend parameters (Radius, Bend relief & NF) can be overridden by

selecting the bend and using the bend handle

• Bend->Bend Handle->Options

Demo



Sheet Metal Parts – Straight Brake & Rolled

• Sheet Metal parts can be created in multiple ways

• Start with the Sheet Metal template for a dedicated document

• Create a Sheet Metal part in a Part document

• Typical usage

• Change in design intent i.e., starts as regular part but it needs to be a

Sheetmetal part now

• Translated parts

• Behaviour

• Document type is unchanged i.e., still a Part document

• Sheetmetal properties added to the Part document

• Sheetmetal environment activated

• Sheetmetal parts can be created and edited like in native Sheetmetal

documents

• Remember SE can create rolled parts too

• Use contour flange as a starting point

ST5

Demo



Sheet Metal on Part Models

• ST6 offers capabilities to create SM features on thin portions of a regular part

- only Ordered

• Think stamped parts

• Sheet Metal features supported

• Flanges, Contour Flanges

• Deform features on thin portions

ST6

Demo



Quick Enhancements

• Dimple and Drawn Cutout have been enhanced to support multiple profiles

• Already supported in Sync

• Only closed profiles

• Bead already supports multiple profiles

• Dynamic Preview during SM feature creation

• Most features now display a preview

• Add Flat_Pattern_Model_CutSize variables in templates

• Allows users to expose these through custom properties even if a flat

patters does not exist

• Flatten “Simplify b-splines” option set to OFF

• “Associate with Material” moved from Material page drop down to Gage age

ST6

Demo



Flatten Enhancements Demo

ST6

•Unbend, rebend and flat pattern have been enhanced to support features on

cylindrical bends

•Flat features need to be created in ST6

• Unbend, rebend & flat pattern



Transform to Sheet Metal

• Typical workflow

• Translated Parts

• Need to flatten or change thickness

• Change in requirements

• Starts as Part and needs to be Sheetmetal now

• Feature(s)

• Transform to Sync Sheetmetal (Ordered/Sync)

• Transform to Sheetmetal (Ordered)

• Automatically adds bends

• Option to rip the model

• Cut

• Users can custom rip the part

• Note

• Transform commands are enabled in Part documents from ST5

• If in Part and want to work in Ordered, Transition to Ordered, Switch To Part

and then run Transform to Sheetmetal command

ST5

Demo



Breaking into Sync Sheet Metal

• The When?

• Straight break bend parts

• Start with Tabs, Flanges and holes

• Graduate towards Contour Flanges, Patterns, Mirror

• Editing translated SM parts – Thickness change, shape change, bend

parameters etc

• Remember Integrated modelling

• The Why?

• Easy creation, easier edits

• Multiple flange creation

• Transforming translated SM parts to native SM parts

• Flange creation from Assembly

• Individual bend control

• Non-orthogonal plates/tabs

• And a lot more…….

Demo



More…..

•The following ST6 enhancements will be covered in the Advanced Topic 503

tomorrow

• Emboss

• Flanges on linear edges

• Bends

• Contour Flanges

• Deform Features

• Contour flanges on contour flanges

• Features on Bends

• Dimples, beads, drawn cuts etc

• Flatten Enhancements

• Support deform features, part features and Emboss on bends

• When to use Sync/Ordered

• Integrated modelling

ST6



Questions?

Ganapathy Kunda

[email protected]


#SEU13

A primer on bending Bending, flat length computation and neutral (k) factor



Bending

• Bending causes the inside surface to be compressed and outside to be stretched.

• In practice what this means is that using the bend arc length on either layer face for determining the flat length will be incorrect.

• Or using the plate lengths including the bends will also result in incorrect flat length

• Or what happens when you create a bend on a flat?

-Use outer layer lengths 191.42

-Use inner layer lengths 175.71

-Use just plate lengths up to bends 200.00



Flat lengths

• Computation of flat correct lengths involves accounting for the material transition during the bending process.

• The constants are the tab lengths either to the inside of the bend or to the outside of the bend

• Bend allowance (BA)

• PI * (inside bend radius + neutral factor * material thickness) * bend angle/180

• Bend deduction (BD) = 2 * outside set back – Bend Allowance

Flat length = A + B – Bend Deduction

Flat length = C + D + Bend Allowance

http://en.wikipedia.org/wiki/Bending_(metalworking)




What is Neutral Factor (K-Factor)?

Between the inside and the outside surfaces, there is a layer which is neither compressed nor stretched. This is known as the neutral layer.

Neutral factor helps determine the location of the neutral layer.

Neutral factor depends on bend radius, bend angle, ambient temperature, direction of material grain, bending methods etc.

Neutral layer helps determine the correct length of bend.

References: Wiki Article, look at the references section in the article for more details


solidedge 403

Documents

sheet metal documents

sheet metal designs

sheet metal breaking

sync sheet metal

siemens plm software

basic sheet metal modeling

designing sheet metal

material page