COMPUTER AIDED DESIGN-COMPUTER AIDED MANUFACTURING

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1 COMPUTER AIDED DESIGN-COMPUTER AIDED MANUFACTURING Subject code: A708 Regulations: R-JNTUH Class: IV Year B. Tech MECH I Sem Department of Mechanical Engineering BHARAT INSTITUTE OF ENGINEERING AND TECHNOLOGY Ibrahimpatnam - 0 0, Hyderabad

2 COMPUTER AIDED DESIGN-COMPUTER AIDED MANUFACTURING ( A708 ) COURSE PLANNER I. COURSE OVERVIEW: It is an integrated course covering CAD, Geometric Modeling, Computer hardware for CAD,CAM and CIM application. Students will gain experience in computer graphics, transformations and geometric modeling (curves, splines, wireframe, surface and solid modeling techniques under CAD. Students will get an exposure of Numerical control, NC Part programming, DNC and adaptive control under CAM and finally they will be exposed to various computer aided manufacturing techniques of Process planning, Material Resource Planning and Quality Control leading to Computer Integrated Manufacturing. II. PREREQUISITE:. Familiarity with Differentiation, Vector Algebra, Linear algebra, Matrices. Basic of Computers. Machining Processes- Machine tools III. COURSE OBJECTIVES I II III IV V Course Objectives To understand the concept of implementation of CAD-CAM in industries and product cycles. To know various components used in CAD-CAM systems such as hardware components memory types input & output devices. To know about different concepts of Computer graphics & geometrical modeling along with the of Drafting and modeling systems during the implementation of CAD-CAM concepts used as a part of CAD-CAM system. To know the implementation of CAM concepts along with the of CNC & NC programming for different scenarios. To understand the about the group technology concepts, Computer Aided Quality Control and CIM IV. COURSE OUTCOME: The students will be able to S.No Description Blooms Taxonomy Level Develop D CAD models utilizing fundamental knowledge in computer graphics by selecting optimum hardware and software configuration for efficient development of CAD models Work and interact through hands-on experiences, to design and develop D CAD models utilizing basic knowledge in surface and solid modeling techniques for real life engineering applications Generate NC part programs using manual and computer assisted part programming Techniques and able to select NC, CNC, DNC and Adaptive Control systems based on the critical requirements of manufacturing Industry Select appropriate group technology and computer assisted process planning modules to develop optimum process plans with Knowledge, Understand (Level and Level) Apply, Create (Level,Level) Evaluate, Apply, Create ( Level) Evaluate, Apply, create (Level)

3 accurate Material resource plans. Understand automation in manufacturing with the integration of various computer based systems right from to design, manufacture and qualification of critical products, leads to Computer Integrated Manufacturing (CIM) V. HOW PROGRAM OUTCOMES ARE ASSESSED: Analyze, Apply (Level) Program s (PO) Level Proficiency assessed by Engineering knowledge: Apply the knowledge of mathematics, PO science, engineering fundamentals, and an engineering specialization to the solution of comple engineering problems related to Computer Assignments Science and Engineering. Problem analysis: Identify, formulate, review research literature, and PO analyze complex engineering problems related to Computer Science and Engineering and reaching substantiated conclusions using first Assignments principles of mathematics, natural sciences, and engineering sciences. Design/development of solutions: Design solutions for complex engineering problems related to Computer Science and Engineering and PO design system components or processes that meet the specified needs Assignments with appropriate consideration for the public health and safety, and the cultural, societal, and environmental considerations. Conduct investigations of complex problems: Use research-based PO knowledge and research methods including design of experiments, analysis and interpretation of data, and synthesis of the information to Assignments provide valid conclusions. Modern tool usage: Create, select, and apply appropriate techniques, PO resources, and modern engineering and IT tools including prediction and modeling to complex engineering activities with an understanding of the limitations. The engineer and society: Apply reasoning informed by the contextual PO6 knowledge to assess societal, health, safety, legal and cultural issues and the consequent responsibilities relevant to the Computer Science Assignments and Engineering professional engineering practice. Environment and sustainability: Understand the impact of the PO7 Computer Science and Engineering professional engineering solutions in societal and environmental contexts, and demonstrate the knowledge of, and need for sustainable development PO8 Ethics: Apply ethical principles and commit to professional ethics and responsibilities and norms of the engineering practice Individual and team work: Function effectively as an individual, and PO9 as a member or leader in diverse teams, and in multidisciplinary - -- settings. Communication: Communicate effectively on complex engineering activities with the engineering community and with society at large, PO0 such as, being able to comprehend and write effective reports and - -- design documentation, make effective presentations, and give and receive clear instructions. Project management and finance: Demonstrate knowledge and PO understanding of the engineering and management principles and apply these to one s own work, as a member and leader in a team, to manage projects and in multidisciplinary environments Life-long learning: Recognize the need for, and have the preparation PO and ability to engage in independent and life-long learning in the broadest context of technological change. Research VI. HOW PROGRAM SPECIFIC OUTCOMES ARE ASSESSED

4 Program Specific s (PSO) PSO The student will be able to apply the knowledge of Mathematics, Sciences and engineering fundamentals to formulate, analyze and provide solutions for the problems related to Mechanical engineering and communicate them effectively to the concerned. PSO Design mechanical systems in various fields such as machine elements, thermal, manufacturing, industrial and interdisciplinary fields by using various engineering/technological tools to meet the mercurial needs of the industry and society at large. PSO The ability to grasp the latest development, methodologies of mechanical engineering and posses competent knowledge of design process, practical proficiencies, skills and knowledge of programme and developing ideas towards research. Level Proficiency assessed by Lectures, Assignment s Lectures, Assignmen ts VII. SYLLABUS: COURSE CONTENT: UNIT I Fundamentals of CAD/CAM, Automation, design process, Application of computers for design, Benefits of CAD, Computer configuration for CAD applications, Computer peripherals for CAD, Design workstation, Graphic terminal, CAD software definition of system software and application software, CAD database and structure. GEOMETRIC MODELING: -D wire frame modelling, wire frame entities and their definitions, Interpolation and approximation of curves, concept of parametric and non-parametric representation of curves, Curve fitting techniques, definition of cubic spline, Bezier and B- Spline. UNIT II SURFACE MODELING: Algebric and geometric form, parametric form of surface, Blending functions, parameterization of surface patch, subdividing, cylindrical surface, Ruled surface, Surface of revolution Spherical surface, composite surface, Bezier surface. B-Spline surface, Regenerative surface and pathological conditions. SOLID MODELING: Definition of cell composition and spatial occupancy enumeration, sweep representation, Constructive solid geometry, Boundary representations. UNIT- III: NC CONTROL PRODUCTION SYSTEMS: Numerical control, Elements of NC system, NC part programming, Methods of NC part Programming, Manual Part programming, Computer assisted part programming, Post processor, Computerized part program, SPPL(A Simple Programming Language). CNC, DNC and Adaptive Control Systems. UNIT IV: GROUP TECHNOLOGY: Part families, Part classification and coding. Production flow analysis, Machine cell design.

5 COMPUTER AIDED PROCESS PLANNING: Difficulties in traditional process planning, Computer aided process planning: retrieval type and generative type, Machinability data systems.computer AIDED MANUFACTURING RESOURCE PLANNING: Material resource planning, inputs to MRP, MRP output records, Benefits of MRP, Enterprise resource planning, Capacity requirements planning. UNIT V: FLEXIBLE MANUFACTURING SYSTEMS: F.M.S equipment, FMS Layouts, Analysis methods for FMS benefits of FMS. COMPUTER AIDED QUALITY CONTROL: Automated inspection- Offline, On-line, contact, Non-contact, Coordinate measuring machines, Machine vision. COMPUTER INTEGRATED MANUFACTURING: CIM System, Benefits of CIM GATE SYLLABUS: Computer Integrated Manufacturing: Basic concepts of CAD/CAM and their integration tools. IES SYLLABUS: NOT APPLICABLE TEXT BOOKS:.CAD / CAM /Groover M.P/Pearson Education.CAD / CAM Theory and Practice / Ibrahim Zeid / TMH. CAD/CAM: Concepts and Applications/Alavala/ PHI REFERENCE BOOKS:. Computer Graphics Principles & practice, second edition, Foley, Van Dam, Feiner and Hughes, Pearson Education.. Computer Graphics C version, Donald Hearn and M. Pauline Baker, Pearson education.. CAD/CAM Principles and Applications,P.N.RAO/TMH. CAD / CAM / CIM, Radhakrishnan and Subramanian / New Age. Computer control of Manufacturing Systems, Yoram Koren, Mc-Graw Hill Book Company 6. Principles of Computer Aided Design and Manufacturing, Farid Amirouche / Pearson 7. Computer Numerical Control Concepts and programming, Warren S Seames/Thomson Session LESSON PLAN-COURSE SCHEDULE: UNIT-I Week Unit Fundamentals of CAD/CAM, Automation, design process, Application of computers for design, Benefits of CAD, Computer configuration for CAD applications, Computer peripherals for CAD, Design workstation, Graphic terminal, CAD software- definition of system software and application software Define CAD, Automation, Computer Graphics Know about Computers for CAD Gathering Knowledge About Peripherals, Workstations Gathering Knowledge About Referenc e T,T, R,R T,T, R,R T,T, R,R T,T, R,R

6 CAD Software Gathering Knowledge about CAD database and structure Databsae and Structure of CAD 6 -D wire frame modeling, wire frame entities and their wire definitions, frame modeling, Interpolation, 7 Interpolation and approximation of curves Approximation and curve fitting 8 Concept of parametric and non-parametric Techniques, curves representation of curves parametric & non 9 Curve fitting techniques parametric 0 Definitions of cubic spline Synthesis of D Problems on Bezier spline Cubic Splines of Parametric, Bezier Definitions of Bezier spline and B-Spline Using Problems on Bezier spline CG Techniques Definitions of B- spline Problems on B- spline UNIT- 6 Surface modeling: Algebraic and geometric form, Compose the 7 Parametric space of surface 8 Blending functions, 9 parameterization of surface patch 0 Subdividing, Cylindrical surface, Ruled surface Surface of revolution Spherical surface, Composite surface Bezier surface B-spline surface, 6 6 SOLID MODELING: Definition of cell composition Compose the 7 spatial occupancy enumeration 8 sweep representation 9 Constructive Solid Geometry 0 Boundary representations Knowledge of Parametric space of surface Cylindrical surface, Ruled surface, Surface of revolution Spherical surface, Bezier surface& B- spline surface Knowledge of the following Solid Modeling Techniques: Spatial Occupancy Enumeration, Constructive solid geometry, Boundary Representation UNIT- 7 NC Control : Production Systems Numerical control, Elements of NC system about Numerical Control, NC part programming: Methods of NC part Elements of NC programming, Control T,T, R,R T,T, R,R T,T, R,R T,T, R,R T,T, R,R T,T, R,R Manual part programming Compose the Problems on manual part programming Knowledge about the 6 8 Computer assisted part programming Following: T,T,

7 7 8 9 Problems on Computer assisted part programming Post Processor Computerized part program NC Part Programming, Computer Assisted 0 Part Programming, SPPL (A Simple Programming Language) SPPL 9 CNC, DNC about CNC.DNC,Adaptive Adaptive Control Systems Control UNIT- Group Technology(GT): Part families Compose the Parts classification and coding. Production flow analysis Machine cell design Difficulties in traditional process planning 8 Computer aided process planning(capp): retrieval type 9 Computer aided process planning: generative type 0 Machinability data systems Computer aided manufacturing resource planning: Material resource planning inputs to MRP, MRP output records Benefits of MRP, Enterprise resource planning Capacity requirements planning Knowledge about GT, part families, Production flow analysis, Machine Cell Design Compose the Knowledge about Computer aided process planning, retrieval and generative types about Machinability data systems Compose the Knowledge about MRP, Computer aided manufacturing resource planning, Enterprise resource planning, Capacity requirements planning UINT-V 6 7 Flexible manufacturing system: F.M.S equipment FMS layouts about FMS, F.M.S 8 equipment, FMS Analysis methods for FMS benefits of FMS layouts 9 Computer aided quality control(caqc) about 60 Automated inspection- Off-line Computer aided 6 Automated inspection- On-line quality control 6 Contact inspection methods systems, Contact & 6 Noncontact inspection methods Non-Contact 6 Coordinate measuring machine(cmm), Inspection Methods, 6 CMM, Machine Machine vision Vision systems. R,R T,T, R,R T,T, R,R T,T, R,R T,T, R,R T,T, R,R T,T, R,R 66 Computer Integrated Manufacturing: CIM system about T,T,

8 CIM system R,R 67 Benefits of CIM IX. MAPPING COURSE OUTCOMES LEADING TO THE ACHIEVEMENT OF PROGRAM OUTCOMES AND PROGRAM SPECIFIC OUTCOMES: Program s XI. QUESTION BANK (JNTUH) UNIT I Long Answer Questions- No Question Blooms Taxonomy Program Specific s PO PO PO PO PO PO6 PO7 PO8 PO9 PO0 PO PO PSO PSO PSO CO CO CO CO CO AVG a) What are the designs related tasks performed by modern computer? b) Explain with block diagram In what ways CAD can help manufacturing activity? Discuss. a) What are the reasons for implementing a computer aided design system b) What is engineering analysis? Explain with the example a gear and the shaft assembly. a) Briefly describe the types of storage devices used in computers. b) Explain briefly the following: i) Random scan graphic terminal ii) Digitizers and Image scanners iii) CPU a) Explain how CAD helps to synthesize a product design and engineering analysis for getting optimal design. b) Briefly explain the conventional process of the product cycle in the conventional manufacturing environment. a) What is the structure of a computing system? b) What do you understand by the CPU & ALU? 6 a) List the advantages of computer aided design. b) Elaborate on the basic requirements that CAD Software has to satisfy 7 a) Write the Application of computers for design? b) Write the Computer peripherals for CAD? 8 Explain: -D scaling, rotation, reflection and translation with suitable example? What is the need for concatenation of transformations? Explain what care should be taken in such cases. Course Level

9 9 A scaling factor of is applied in the Y direction while no scaling is applied in the X direction to the line whose two endpoints are at coordinates (, ) and (, 6). The line is to be rotated Subsequently through 0 0, in the counter clockwise direction. Determine the necessary transformation matrix for the operation and the new Evaluating coordinates of the end points. 0 Find transformed coordinates when a square [(,), (,), (,) and (,)] is rotated by 90 anticlockwise about a line passing through one Evaluating of its vertex (,) and parallel to x-axis? The vertices of a triangle are situated at points (, 0), (, ) and (, ). Find the coordinates of the vertices if the triangle is first rotated 0 0 Evaluating counter clockwise direction about the origin and then Creating scaled to twice its size. Short Answer Questions- S.No Question Blooms Taxonomy Course What is meant by Automation? Knowledge Write about design process in CAD? Knowledge What do you understand by the CPU? What is meant by Graphic terminal? What is the structure of a computing system? 6 Briefly describe the types of storage devices used in computers 7 Definition of system software and application software? Knowledge 8 Define cubic spline, Bezier and B-Spline. Knowledge UNIT II Long Answer Questions- S.No Question Blooms Taxonomy a) What are the types of surfaces that CAD/CAM systems use? b) Explain how the curves are represented in i. Generic form; ii) Parametric form. a) Explain briefly about blending functions? b) Write about the parameterization of surface patch? a) Explain the basic curve fitting techniques. b) Explain the importance of geometric modeling in CAD. a) Write briefly about surface modeling and solid modeling? b) Distinguish between interpolation and approximation approaches used in design of curves a) What are entities? Explain the methods of defining lines, arcs and Circles in wire frame modeling? b) Write a note on: i) NURBS; ii)b-splines 6 a) Discuss the modeling guidelines to be followed by the user while constructing a surface model as a CAD/CAM system. b) Differentiate between Bezier and B- spline surface with reference to number of control points, order of continuity and surface normal. Analysis Analysis Course

10 7 a). Explain how a Bezier curve is defined. b) What are the advantages of Bezier curves over cubic spline? 8 a) What are the parametric curve continuity conditions? b) Distinguish between D and D wireframe models? With a suitable figure explain the difficulty in displaying holes and curved ends in wire frame modeling? 9 a) Describe various commonly used primitives for solid modeling and explain the Boolean operations b) Explain method of CSG modelling. 0 a) What is a Hybrid Solid Modeller b) What is meant by sweep operation in solid modelling a) What are the basic Geometric & Editing commands in CAD? b) Discuss about display control commands used in CAD/CAM. a) Explain briefly about spatial occupancy enumeration? b) Write short notes oni)rotational sweep representation ii) boundary representation? a) What do you mean by geometric modeling? Enumerate various solid-modeling techniques and compare them b) Write about cell composition and spatial occupancy enumeration? a) What are the Different Editing commands used in CAD/CAM b) What are the limitations in utilizing the sweep method Analysis Evaluate Short Answer Questions- S.No Question Blooms Taxonomy Course Write about Surface modeling and subdividing? Knowledge Write about Cylindrical surface and Ruled surface? Knowledge Write about solid modeling? Explain spatial occupancy enumeration? Explain constructive solid geometry modelling techniques in detail with example? Apply 6 What is meant by Sweep representation? 7 Explain the characteristics of Bezier curve? Knowledge UNIT III Long Answer Questions- S.No Question Blooms Taxonomy a) Write briefly about Elements of NC system? b) What are the basic components of NC system and explain the function of each component? a) Discuss the several word functions in Numerical Control systems. b) Discuss the advantages of DNC over NC/CNC a) Describe the axis representation system used for CNC Milling Machine. b) Discuss the various interpolation methods used in CNC Machine Rememberi ng, Understandi ng Course Rememberi ng, Analyze Understandi ng, Analyze

11 a) What are the Methods of NC part Programming?. b) Write briefly about computerized part program? a) Describe various G and M codes used in CNC Programs b) Discuss any five motion statements used in APT part programming 6 a) Explain the APT statements: i) GO/TO ii) GODLTA and GOBACK and iii) INTOL and OUTTOL b) Write about SPPL? 7 a) Briefly discuss the following NC motion control systems. i. Point -to-point ; ii) Straight cut; iii) Contouring Write a CNC Turning Programing for the figure Understandi ng,evaluate Rememberi ng, Analyze Rememberi ng, Understandi ng Remember ing,, Evaluating, Creating. 8 a) Differentiate between: i) NC, CNC and DNC system ii) ACC and ACO adaptive control system b) Enumerate the advantages of Computer Assisted Part Programming when compared to Manual Part Programm 9 Write briefly about Post processor? Explain about the memory devices used in NC, CNC and DNC 0 a) What is adaptive control system? Discuss its advantages to the manufacturing technology. b) Discuss the merits and demerits of NC system Rememberi ng Evaluating Rememberin g,understand ing Understandin g, Evaluate Short Answer Questions- S.No Question Blooms Taxonomy Course Write about Numerical control system? Write the Elements of Numerical control? Differentiate NC, CNCand DNC systems? Analysis Write about Manual part programming? Knowledge What is the importance of G-codes in part programming? Give Knowledge, Apply examples 6 What is meant by Adaptive control? UNIT IV Long Answer Questions- S.No Question Blooms Taxonomy Course a) What is a part family? explain various methods of part formation b) Explain the part design and manufacturing attributes giving examples Apply

12 a) What is Group Technology? Mention some of the benefits associated with of GT b) Discuss in brief the different stages of a group technology plan. Classify a component using any one type of coding system a) What do you understand by Computer Aided Process Planning? b) Write about Retrieval CAPP a) Write about Hybrid CAPP b) Discuss about the difference between the process type layout and GT layout a) Explain about generative type process planning systems. b) By using GT what types of benefits are associated in Manufacturing, Production and Quality control functional areas 6 a) Explain the Retrieval type Process Planning System with the help of a block diagram b) Explain about MICLASS coding system as used in group technology. 7 a) How is group technology useful for the implementation of CAPP? Explain with an example b) What are the advantages of CAPP over Manual Process Planning? Explain in detail. 8 a) Write a brief note on Production flow analysis b) Write about machine cell design? 9 a) What factors must be considered while selecting a classification and coding system b) Discus the advantages and limitations of OPITZ code system 0 a) Explain the following in detail: i) Composite component ii) Design and manufacturing attributes iii) Hybrid structures b) Discuss the role of CAPP in CIM in detail a) Write about Enterprise resource planning and Capacity requirements planning? b) Write short notes on a) Inputs to MRP b) MRP output records c) Benefits of MRP a) Give the block diagram of MRP. Evaluate Analysis Apply Apply Analysis, Knowledge b) What are the benefits of MRP? Short Answer Questions- No Question Blooms Taxonomy Course Explain the importance of CAPP in automation? Differentiate generative and retrieval type CAPP systems? Analysis Give the block diagram of generative type CAPP systems? Knowledge Write about Part classification and coding? What is meant by Group technology? Knowledge

13 6 What are various languages used in GT? 7 Explain Machinability data systems? 8 Write about machine cell design? 9 Give the block diagram of MRP. Analysis 0 What are the benefits of MRP? Knowledge UNIT V Long Answer Questions- N o Question Blooms Taxonomy Course a) Discuss about CAQC b) Explain the application and advantages of integration of CAQC with CAD/CAM systems a) Discuss the objectives of CAQC. Explain the different computer aided inspection methods b) Write about Automated inspection- Offline contact, Online contact and Non contact? a) Explain in Detail about the Laser Beam Scanners used in computer-aided quality control systems b) Explain in detail about Ultrasonic Scanner used in computeraided quality control systems a) Differentiate between Non-Contact and Computer aided testing for computer-aided quality control systems. b) What are the advantages and Limitations of the usage of Computer- aided testing in computer-aided quality control systems? a) Discuss about Machine Vision. b) Describe hardware configuration of CIM with the help of a sketch. c) Explain the types of Shop floor data collection Systems? 6 a)describe the role of RSC, DNC, LAN in integrating various components of FMS b)how does CIM integrate all the activities of Industry?Explain 7 a)distinguish between the Lean manufacturing process and Agile manufacturing b) Explain JIT production system with respect to the following i. Batch size ; ii) Setup time ; iii)product schedule 8 a) List and explain the functions of automated material movement vehicle in a FMS. b) Discuss about automated guided vehicle systems 9 a)what is an FMS? Explain in detail the basic components of FMS. b)explain with a block diagram concept of CIM 0 a)what are the benefits of CIM? Explain in detail the different types of database requirements in CIM. B)Explain CIM integration of all activities of industry Short Answer Questions- S. No Question Blooms Taxonomy Course What are the Analysis methods for FMS? Explian FMS?

14 Write about computer aided quality control? Knowledge Explain CIM? Explain the benefits of CIM? Knowledge 6 What are the different types of CMM? 7 Differentiate continuous and batch production systems Analysis 8 Differentiate contact and non-contact type CAQC systems? Analysis With examples 9 How CMM is used as CAQC system? Analysis 0 What is meant by machine vision? Knowledge OBJECTIVE QUESTIONS: JNTUH: UNIT-. The basic geometric building blocks in a CAD/CAM package are.. Aircrafts are manufactured by.. command makes multiple copies of selected objects in a rectangular or circular polar pattern.. The vectors in the drawings are to be converted into its equivalent pixel points. This process is termed as.. For combining the primitives to form the complex solid, the basic set operators also called. 6. The degree of Bezier curve with n control points is. 7. The convex hull property is satisfied by the following surface. 8. In Optiz code, the form consists of. 9. Cellular manufacturing system is designed on the basis of. 0. D and D CAD are used to draw &. UNIT-. command makes multiple copies of selected objects in a rectangular or circular polar pattern.. The software that is used to provide the users with various functions to perform Geometric modeling and construction is known as.. The lowest form of computer language is called.. Coons surface or patch is obtained by blending boundary curves.. Ambiguous representation of real objects is seen in. 6. Two end points and two tangents are required to define. 7. Partial erasing of the image is not possible in. 8. For combining the primitives to form the complex solid, the basic set operators also called. 9. The degree of Bezier curve with n control points is. 0. Individual transformations are combined in order to achieve the required results is called. UNIT-. CNC machines are also known as.. Linear interpolation is carried out by.. CMM stands for.. The alternative approaches to CAPP have been developed systems.. The data model that represents the data as a tree like structure is known as.

15 6. The convex hull property is satisfied by the surface. 7. The main objective of DNC system is to eliminate the use of. 8. The advantage of CNC is. 9. The NC modes are broadly classified into categories. 0. Numerical control can be applied to. UNIT -. The axes designation is standardized by ISO and is generally used by most of the machine tool manufactures. The z-axis is used as.. utilizes coding and classification system of parts to be able to group them into similar groups by means of certain characteristic such as similarity in shape. is a method to develop efficient process plan directly from the CAD model of the part by considering all manufacturing resources unlike the manual process planning method. are material handling systems that are run on fixed routes most of the time..motion commands are the most important part of the G code used to control motion in rapid.the G code for rapid motion is. 6. MRP input requires. 7. The lost of CNC machine tools is an account of. 8. On turning lathes the machine zero point is generally at the. 9. Dwell is defined by. 0. Computer will perform the data processing in. UNIT -. Integration of CAD and CAM is called.. Programming automation is suitable for type of production.. The database is used in CAD/CAM system.. Dwell is defined by.. M0 stands for. 6. The software that enables the user to implement custom applications or modify the system for specialized needs is known as. 7. The number of non-coincidental points required to define the simplest surface are. 8. The Axes of turning machine arc. 9. BOM structure is used to calculate. 0. The shape functions of a two noded bar element are. GATE:. NC contouring is an example of.. In CNC program block, N00 G0 G9X0 Z0.. G0 refer to.. For coons patch we require.. The tool of a NC machine has to move along a circular arc from (, ) to (0, 0) while performing an operation. The centre of the arc is at (0, ). Which NC tool path performs the operation?. Light pen is a. 6. The number of non-coincidental points required to define the simplest surface are. 7. The axes of turning machine arc. 8. In a CAD package, mirror image of a D point P (, 0) is to be obtained about a line which passes through the origin and makes an angle of counterclockwise with the X-axis. The coordinates of the transformed point will be.

16 WEBSITES: EXPERT DETAILS:. Dr. Sriram Venkatesh, Professor, OU, Hyderabad. Mr Bala Subrahmanian, Scientist G, Head, CAD/CAM, DRDL, Hyderabad. Dr A.K..Jain, Head. Scientist G, Structural Analysis, DRDL, Hyderabad JOURNALS:. International journal of Computer Aided Engineering and Technology. International journal of Computer Aided Technologies (IJCAx). Computer Aided Design (SCI). Computer Aided Geometric Design (SCI). Graphic models (SCI) LIST OF TOPICS FOR STUDENT SEMINARS:. Introduction to CAD/CAM Concepts. Surface modelling and solid modelling. CAD / CAM Hardware. Computer Graphics. Geometric modelling 6. Drafting and Modelling systems 7. Numerical control 8. Group Technology 9. Computer Aided Quality Control 0. Computer integrated manufacturing systems CASE STUDIES / SMALL PROJECTS. Designing of mechanical components such as spur gear, turbine blades, jigs and fixture.. Geometric modeling. Computer Graphics. Drafting and Modeling systems