Pro-E 01 Introduction

Mechanical CAD

Ding Shuhui

Associate Professor

What is CAD?

CAD: Computer Aided Design

Difference between CAD and computer aided

drawing

Product life cycle

Begin with customers and markets demands

Two main processes

Design

Manufacturing

Design = Design Methodology + Design Tools

Design Methodology

Mechanical Graphing

Principle of Mechanics

Mechanical Design

interchangeability and measurement

Mechanical Engineering Material & heat treatment

Basis of Machine Manufacture Techniques

Design Tools

Design tool: AutoCAD, Inventor and MDT

Autodesk: Founded in 1982. A leader in 2D design

AutoCAD:

The most widely used 2D design software, and accounting for

37% of the market

Focus on basic geometric modeling and drafting

Have strong functions in drawing, editing, dimensioning,

tolerancing and programming

Have some 3D modeling functions

MDT (Mechanical Desktop) and Inventor: 3D modeling

software of Autodesk

Design tools: UG and Solidedge

UG: Unigraphics

Offered by Siemens (first offered by McDonnell Douglas

Aircraft Company in 1960, and then UGS). First version

entering the market published in 1983

Have a very strong NC machining function

Solidedge

Offered by UGS in 1995 (and then merged into Siemens)

Easier than UG, and easy to understand and operating

Have a less geometric modeling capability than UG

Design tools: CATIA and SolidWorks

CATIA: Computer Aided Tri-Dimensional Interface

Application

Offered by Dassault aircraft Co., Ltd. In 1982

The most high end 3D application, especially in surface

modeling

Applied to all the aircraft corporations and most of the

automobile factories

SolidWorks:

Offered in 1995 by SolidWorks Co., Ltd. (founded in 1993,

purchased by Dassault in 1997)

Windows based and has a reasonable price

Design tools: Pro/E

Offered by Parametric Technology Corporation

(PTC, founded in 1986).

First version was published in 1988

Put forward concepts of Feature based,

parametric and single database at the first

time

Parts and assembly use the same database

Ch.1 Introduction

Outline of this chapter

Summarization of Pro/Engineer software

Functions of Pro/Engineer

Content of this course

Preparation before you start Pro/E Wildfire 5.0

Foundational operation of Pro/E Wildfire 5.0

1.1 Summarization of Pro/Engineer

A suite of programs developed by Parametric

Technology Corporation (PTC)

Used in design, analysis and manufacturing of

products


PTC was founded in 1985. Pro/E 1.0 was

published in 1988, which is the era of parametric

3D design

Pro/E wildfire 5.0 was published at 2009.7.17

From 1990s, PTC became the biggest provider of

CAD/CAE/CAM software


Advanced theories and technologies are used in

Pro/E

Solid Modeling

Feature-based

Parametric

1.2 Functions of Pro/Engineer

Pro/E is a suite of programs that are used in the design,

analysis, and manufacturing of products

In detail, Pro/E has more than 20 modules, which covers

all the design and manufacturing procedure

Conceptual design

Parts design

Virtual assembly

Function simulation

Manufacturing

1.2 Functions of Pro/Engineer: modules

In general, product design & manufacturing are divided

into several larger modules, which provides different

function.

Industrial design

Mechanical design

Function simulation

Manufacturing

The procedure of product design & manufacturing is the

integration of several modules

1.Industrial design

Conceptual model can be built easily using the draft,

model building, rendering and other methods.

2. Mechanical design

Parts can be built and assembled accurately by designers

using Pro/E modeling module

The reducer built with Pro/E


Complicated assembly can be built easy in Pro/E

Excavator arm built with Pro/E


With additional

module, special

assembly can be built

easily

Injection mold built

with the module of

Pro/Moldesign

2. Mechanical design: Engineering drawing

Engineering drawings can be generated according to the

3D mold built in the previous procedure

3. Function simulation

Put the conceptual design into engineering environment to evaluate

the performance of product

Eliminate multiple design choices and find the best solution

4. Manufacturing

Simulate the cutting process

Generate NC code which is used by NC machine tools

Usage of Pro/E: integration of multiple modules

Design procedure of universal product

Conceptual model creation

Parts design and assembly

Generation of NC code or engineering drawing

Design procedure of special product

Mould design: metal die, injection mould and so on

Sheet metal operations, piping layout and so on

1.3 Content of this course

Introduction (chap.1)

Sketch (chap.2)

Featrue creation: sketched feature (chap.3), datum feature (chap.4),

placed feature (chap.5) and surface feature (chap.7)

Feature edit (chap.6)

Assembly (chap.9)

Engineering drawing (chap.10)

Elective content

Rendering (chap.8)

Simulation

Animation

1.4 Preparation to start Pro/E Wildfire 5.0

Computer system requirement of Pro/E Wildfire

5.0

Start-up of Pro/Engineer Wildfire 5.0

Interface of Pro/Engineer Wildfire 5.0

Setting working directory

Switch between English and Chinese interface

1.4.1 Computer system requirement

Hardware: workstation is recommended, PC is ok

Hard disk: More than 3.5G bits

Virtual memory: more than 1G bits

Graphics display system: graphics card and monitor

Graphics card: independent card is recommanded

Monitor: bigger than 17 inch and the bigger the better

Net card: necessary

Operating system: UNIX, Windows NT, 98 and

above

1.4.1 System requirement of Pro/E Wildfire 5.0

Item

Configuration

Minimum Configuration Recommended Configuration

Memory 256M 1024M

Hard disk 3.8G 5G or larger

CPU frequency 500M Hz 2.4G Hz or faster

Internet Explorer Microsoft Internet Explorer 7.0 or above

Monitor 1024768 resolution24 bit color or above

Net card Microsoft TCP/IP net card

Mouse 3D mouse

File system NTFS

1.4.2 Starting Pro/E Wildfire 5.0

Double-click the Pro/E icon on the desktop

Click the Pro/E icon in the START menu

If your screen looks like the right

figure, the startup is complete

Be patient. The program will

take a while to load

1.4.3 Pro/E Wildfire 5.0 screen

Pull down menus Top toolchest

(shortcut buttons)

Title bar

Right toolchest

(shortcut buttons)

Graphics area

Navigator

Message area

Selection filter

Cascading menus

1.4.4 Working directory

The working directory is where Pro/E will look

for and save files.

Change working directory using the command:

File > Set Working Directory

1.5 Pro/E wf 5.0 foundational operation

File Menu

Other menu

Pro/E model operating method

1.5.1 File Menu operation

Frequently used menu items

New

Save

Close Window

Open

Backup

Rename

Save a Copy

Erase

Delete

1. New menu item

Choose file type and sub-type

Section: .sec

Part: .prt

Assembly: .asm

Manufacturing: .mfg

Drawing: .drw

Pay attention:

File name: letter of the alphabet, number, - or _

Template:

2. Save

File > Save: Save object dialog is showing at the

working directory

Extension of Pro/E file

First: stand for the type of file, such as.prt, .asm

Second: stand for version of file, such as.1, .2

Pro/E will automatically number each saved version,

instead of overwriting the original file

Can not change file name and directory when

executing save

Requirement of Pro/E file name

Composition:

26 letters of the alphabet

10 numbers from 0, 1 to 9

Hyphen and underline

Equal or less than 31 characters

The first character can not be hyphen

3. Close Window

Current model is not displayed on the screen, but

it stays in memory

Questions:

How to redisplay the model on the screen?

How to erase the file from memory?

Its the matter of Open and Erase commands

4. Open

File > Open

File type

File location

Hard disk

In session: not displayed on the

screen, staying in memory

File version

Default: latest version

Other version

5. Backup

File > Backup

Function: backup file by the same name

If in the same directory, a new version is created

If in the different directory, a new version

numbered .1 is created

Attention:

the file name can not be changed when backup

command is executed

6. Rename

Function: change the file

name

Rename in session

Rename on disk and in

session

Attention: Rename can only

change file name, and can

not change the file position

7. Save a Copy

Function: copy the file to other position by different

name

You can change the file name

You can change the position where the file is saved

In the same directory, file name must be changed

Some other file format

igs

Stp

Catia

Jpeg

8. Erase and Delete

Erase: erase the model in memory

Current: displayed on the screen

Not display: files closed by the command of Close

Window

Delete: remove the file on the hard disk

All versions: delete all versions of the current object

Old versions: delete all versions except the most

current version

1.5.2 Some other operations

Edit menu: editing operations, such as copy, mirror

View menu: options for controlling model and

performance display

Insert menu: options for creating features

Analysis menu: displaying information about models

and analyzing model

Windows menu: commands for manipulating windows,

such as activating, opening, closing and resizing

1.5.3 Model operating methods in Pro/E

Click of left mouse button:

Selection of mouse commands or shortcut button

Specifying a location

Selection of an entity

Click of middle mouse button: finishing the action

Drag holding middle button down: spin the model

Rolling scroll wheel: zoom view

Click of right mouse button (holding): pop-up menus

1.5.3 Model operating methods in Pro/E

Ctrl + Drag holding middle button down: zoom

Shift + Drag holding middle button down: pan

Summary of 3D model operation

Spin: Drag holding middle button down

Pan: Shift + Drag holding middle button down

Zoom:

Rolling scroll whell

Ctrl + Drag holding middle button down

Summary

Summarization of Pro/Engineer software

Functions of Pro/Engineer

Content of this course

Preparation before you start Pro/E Wildfire 5.0

Foundational operation of Pro/E Wildfire 5.0

ScheduleMon (Single) 14:00-15:50 Wed 8:00-9:50 Fri 8:00-9:50

Week 1J7-506

Attending Class

J7-506

Attending Class

J8-102

Computer Practice

Week 2 J7-506

Attending Class

J8-102

Computer Practice

Week 3J7-506

Attending Class

J8-102

Computer Practice

J7-506

Attending Class

Week 4 J8-102

Computer Practice

J7-506

Attending Class

Week 5J8-102

Computer Practice

J7-506

Attending Class

J8-102

Computer Practice

Week 6 J7-506

Attending Class

J8-102

Computer Practice

Week 7J7-506

Attending Class

J8-102

Computer Practice

J7-506

Attending Class

Week 8 J8-102

Computer Practice

J7-506

Attending Class

Week 9J8-102

Computer Practice

J7-506

Attending Class

J8-102

Computer Practice

Week 10 J7-506

Attending Class

J8-102

Computer Practice

Change Pro/E to English version

Design Tools: CAD/CAM software

Four groups are classified depending on: market

they serve, functionalities and flexibility

Low end systems: foucs on basic geometric modeling

and drafting, such as AutoCAD, Inventor

Midrange:

High end:

Specialized:

Design tool: Pro/Engineer

Parametric Technology Corporation (PTC),

founded in 1986.

First version published in 1988

Put forward the concepts of Feature based,

parametric and single database at the first

time

Parts and assembly of the same product use the

same database

CAD/CAM

CAD/CAM spans four major areas

Geometric modeling

Computer graphics

Design applications

Manufacturing applications

Activities of CAD process

Geometric modeling and assembly

Mass properties, Finite element analysis and etc

Dimensioning, tolerancing and documentation

Activities of CAM process

CAPP

NC programming

Design of injection mold and etc

CAD/CAM applications

There are considerable numbers of applications

Various systems have common modules

Geometric engine module: heart of CAD/CAM system

Applications module: utilize model for design and

manufacturing purposes

Programming module: allows users to customize system to fit

certain tasks

Communication module: achieve integration between different

systems or facilities

Pro-E 01 Introduction

Documents

Transcript of Pro-E 01 Introduction