1. cad fundamental

1. cad fundamental

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  CHAPTER 1: CADFUNDAMENTAL Prof. RATNADEEPSINH M. JADEJA Assistant Professor Mechanical Department
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  Mechanical Engineering Department– School Of Engineering INTRODUCTION 2 CAD/CAM : It is a technology concerned with the use of digital computers to perform certain functions in design and production. CAD can be define as the use of computer systems to assist in the creation, modification, analysis, or optimization of a design.
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  Mechanical Engineering Department– School Of Engineering Product concept CONVENTIONAL PRODUCT CYCLE 3 Design Engineering Drafting Process Planning Production scheduling Order new equipment and tooling Production Quality control Customers and markets
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  Mechanical Engineering Department– School Of Engineering Product concept PRODUCT CYCLE REVISED WITH CAD/CAM 4 Design Engineering Drafting Process Planning scheduling Order new equipment and tooling Production Quality control Customers and markets Computer-aided design Computer-automated Drafting and documentation Computer-aided Process planning Computerized scheduling, Material requirements planning, Shop floor control Computer controlled Robots, machines, etc. Computer-aided Quality control
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  Mechanical Engineering Department– School Of Engineering APPLICATION OF COMPUTERS TO THE DESIGN PROCESS. 5 Recognition of need Problem definition Synthesis Analysis and optimization Evaluation Presentation Geometric modeling Engineering analysis Design review and evaluation Automated drafting CAD
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  Mechanical Engineering Department– School Of Engineering COMPARISON OF CAPABILITIES OF DESIGNERS AND COMPUTERS 6 Human Designers are good at Computers are good at Identifying design needs Carry out long, complex and laborious calculations Drawing up specifications Store and efficiently search large data bases Selecting design solutions Provide information on design methodologies, heuristic data and stored expertise. Selecting the best design Simulation of design for optimization Learning from experiences Aids in modelling, drafting and documentation
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  Mechanical Engineering Department– School Of Engineering REASONS FOR IMPLEMENTING CAD 7 1. To Increase the Productivity of the Designer by i. Reducing Production Time. ii. Using ready made part library. iii. Quicker changes. 2. To Improve the Quality of Design 3. To Improve Communication 4. To Create a Database for Manufacturing
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  Mechanical Engineering Department– School Of Engineering BENEFITS OF COMPUTER AIDED DESIGN 8 1. Productivity Improvement in Design 2. Shorter Lead Times 3. Flexibility in Design 4. Design analysis 5. Fewer Design Errors 6. Standardization of Design, Drafting and Documentation 7. Drawings are more understandable 8. Improved Procedures of Engineering Changes 9. Benefits in Manufacturing
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  Mechanical Engineering Department– School Of Engineering HARDWARE IN CAD 9 ASSIGNMENT 1
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  Mechanical Engineering Department– School Of Engineering CAD WORKSTATION 10 The CAD workstation must accomplish five functions: 1. It must interface with the central processing unit. 2. It must generate a steady graphic image for the user. 3. It must provide digital description of the graphic image. 4. It must translate computer commands into operating functions. 5. It must facilitate communication between the user and the system.
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  Mechanical Engineering Department– School Of Engineering TECHNICAL SPECIFICATION OF CAD WORKSTATION 11 ASSIGNMENT 1