Chapter 01

The Worldwide Graphic Language for DesignChapter 1

Objectives

Describe the role of drawings in the design process Contrast concurrent versus traditional design processes List five professions that use technical drawings

Technical Drawing 13th Edition

Giesecke, Mitchell, Spencer, Hill Dygdon, Novak, Lockhart

Objectives (cont.)

Describe four creativity techniques Explain why standards are important Identify uses of the graphic language

Understanding the Role of Technical Drawings

Drawings and specifications control details of:

Product manufacture Assembly Maintenance

Technical drawings can take many forms including:

Technical drawing forms (cont.)

Working or construction drawings Electrical drawings Installation drawings Assembly drawings

Technical drawings typically serve one of three purposes:

Visualization Communication Documentation

A wide variety of professions use technical drawings to communicate and document designs including:

Professions that use technical drawings (cont.)

Artistic & Technical Drawings

Graphic representation has developed along two distinct lines:

Artistic Technical

Before other communication methods developed, people informed themselves through visual means including pictures From earliest recorded history, drawings have been used to represent the design of objects to be built or constructed

Personal or cultural expression in design is often referred to as aesthetic design Enhancing product development is considered functional design Aesthetics and function can work hand in hand to create appealing and functional products

The Design Process

The organized and orderly approach to solving problems is known as the design process The engineering design process addresses societys needs, desires, and problems by applying scientific principles, experience and creativity 2009 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.

The Design Process

Different types of technical drawings, from hand sketches to CAD models, have specific functions in the engineering design process The procedure for designing products typically follows a process

The Design Process

Stages of the design process include:

Problem identification Ideation Refinement/analysis Implementation/documentation

The Design Process

Ideally, the design moves through these stages but it may be necessary to return to a previous stage and repeat the process

Concurrent Engineering

Traditionally, design and manufacturing activities have taken place in sequential order

Although this is a logical approach, in practice it can often be wasteful

Concurrent engineering is a systematic approach that integrates the design and manufacture of products with the goal of optimizing the process18 2009 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.

Life cycle design means that all aspects of a product are considered simultaneously

These aspects include:

The basic goals of concurrent engineering are:

Minimize product design and engineering changes Reduce time and cost involved in taking a product from design concept to production then introduction to the marketplace

Computer-Aided Design and Product Development

Product design often involves preparing analytical and physical models of the product These models are used to study factors such as forces, stresses, deflections, and optimal part shape

Computer-Aided Design and Product Development

The process of constructing and studying analytical models can be simplified by using:

Computer-aided design (CAD) Computer-aided engineering (CAE) Computer-aided manufacturing (CAM)

Designing Quality Into Products

Quality may be designed into a product in any number of systematic ways including:

The Digital Database

All the information to manage, design, analyze, simulate, package, market and manufacture a product can be shared with users through a single complex digital database

The Digital Database

Systems that electronically store the various types of data associated with design and manufacturin

Chapter 01

Documents

upper saddle

engineering

graphic language

concurrent

2009 pearson

technical

aided design

hill dygdon

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