PPT: Computer Aided Design and Manufacturing Mechanical Engineering Notes | EduRev

Manufacturing and Industrial Engineering

Mechanical Engineering : PPT: Computer Aided Design and Manufacturing Mechanical Engineering Notes | EduRev

 Page 1


LECTURE ONE 
CHAPTER - 1 
Introduction to CAD
Outlines
? What is design?
? What is computer –Aided design(CAD)?
? Application of CAD in mechanical engineering
? Advantages of CAD over manual Drafting.
? How a CAD system is used in product design.
? CAD system hardware and software.
Page 2


LECTURE ONE 
CHAPTER - 1 
Introduction to CAD
Outlines
? What is design?
? What is computer –Aided design(CAD)?
? Application of CAD in mechanical engineering
? Advantages of CAD over manual Drafting.
? How a CAD system is used in product design.
? CAD system hardware and software.
1. What is Design?
• Design is the human power to imagine , plan, and 
realize products that serve human beings.
• Design is a complete prototype with analysis and 
manufacturing.
?The design process 
• Steps of the Conventional Design Process:
1. Recognition of need 
- Someone recognizes the need that can be 
satisfied by a new design.
2. Problem definition 
- Specification of the item.
Page 3


LECTURE ONE 
CHAPTER - 1 
Introduction to CAD
Outlines
? What is design?
? What is computer –Aided design(CAD)?
? Application of CAD in mechanical engineering
? Advantages of CAD over manual Drafting.
? How a CAD system is used in product design.
? CAD system hardware and software.
1. What is Design?
• Design is the human power to imagine , plan, and 
realize products that serve human beings.
• Design is a complete prototype with analysis and 
manufacturing.
?The design process 
• Steps of the Conventional Design Process:
1. Recognition of need 
- Someone recognizes the need that can be 
satisfied by a new design.
2. Problem definition 
- Specification of the item.
Cont.. 
3. Synthesis
- creation and conceptualization
4. Analysis and optimization 
- the concept is analyzed and redesigned 
5. Evaluation
- compare design against original specification.
6. Presentation
- documenting the design (e.g. drawing) 
Page 4


LECTURE ONE 
CHAPTER - 1 
Introduction to CAD
Outlines
? What is design?
? What is computer –Aided design(CAD)?
? Application of CAD in mechanical engineering
? Advantages of CAD over manual Drafting.
? How a CAD system is used in product design.
? CAD system hardware and software.
1. What is Design?
• Design is the human power to imagine , plan, and 
realize products that serve human beings.
• Design is a complete prototype with analysis and 
manufacturing.
?The design process 
• Steps of the Conventional Design Process:
1. Recognition of need 
- Someone recognizes the need that can be 
satisfied by a new design.
2. Problem definition 
- Specification of the item.
Cont.. 
3. Synthesis
- creation and conceptualization
4. Analysis and optimization 
- the concept is analyzed and redesigned 
5. Evaluation
- compare design against original specification.
6. Presentation
- documenting the design (e.g. drawing) 
Cont..
Recognition of need
Problem definition
Synthesis
Analysis & Optimization
Evaluation
Presentation
Figure: Stage in design process 
Page 5


LECTURE ONE 
CHAPTER - 1 
Introduction to CAD
Outlines
? What is design?
? What is computer –Aided design(CAD)?
? Application of CAD in mechanical engineering
? Advantages of CAD over manual Drafting.
? How a CAD system is used in product design.
? CAD system hardware and software.
1. What is Design?
• Design is the human power to imagine , plan, and 
realize products that serve human beings.
• Design is a complete prototype with analysis and 
manufacturing.
?The design process 
• Steps of the Conventional Design Process:
1. Recognition of need 
- Someone recognizes the need that can be 
satisfied by a new design.
2. Problem definition 
- Specification of the item.
Cont.. 
3. Synthesis
- creation and conceptualization
4. Analysis and optimization 
- the concept is analyzed and redesigned 
5. Evaluation
- compare design against original specification.
6. Presentation
- documenting the design (e.g. drawing) 
Cont..
Recognition of need
Problem definition
Synthesis
Analysis & Optimization
Evaluation
Presentation
Figure: Stage in design process 
Cont.. 
? What is Drawings?
- Drawing is rough sketch which give some message or 
information about production.(like shape of product)
? What is Drafting ?
- Drafting is a language of engineers with exact scaling, 
dimension, measurements, accuracy and with standard 
like ISO, ASEE…etc.
Read More
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