 Hello everyone, myself Professor Pritish Chittay, working as an assistant professor in Mechanical Engineering Department in Vulture Institute of Technology, Singapore. So welcome to the second section, second session of the course CAD-CMCE, that is Product Design and CAD-CMCE. So once again, we will see the learning outcomes here. So at the end of the session, the students will be able to apply computer-aided design fundamentals as well as advanced manufacturing technology like the industrial automation or maybe the flexible manufacturing system to the industry problems. So these are the contents. First we will see the recap of the first session very quickly, which consists of computer-aided design, computer-aided manufacturing and computer-aided engineering. And today's our main concept that is product cycle and CAD-CMCE. What is the relationship between the product cycle and CAD-CMCE? So very quickly we will go through what we have learned in the first session. So computer-aided design that will be the use of the computers to fulfill the different functions like, so we have to create maybe a 3D model, we have to modify that particular 3D model, the computer-aided drafting sheet, after that that particular 3D model we can have the analysis that is called as engineering analysis. And after that whenever we are ready with the 3D modeling components and the analysis engineering analysis, we can validate, we can optimize those output that is 3D modeling of any mechanical component and engineering analysis of a 3D model that already we have provided for the engineering analysis. So it consists of different sections or the sectors, for example it consists of geometrical modeling which consists of geometrical transformations, types of geometrical modeling, computer graphics which is also called as interactive computer graphics, it consists of hardware and softwares and mainly it consists of design. So manual design will be replaced by the computer-aided design. Now there is another field which is called as computer-aided manufacturing which consists of the use of computers with the different sectors like maybe the automation, industrial automation after that, so computer-aided process planning, computer-aided controlling, computer-aided scheduling, computer-aided manufacturing with the different sectors or the functions like automation, computer-aided design, always the computer-aided design will be act as a prerequisite for the computer-aided manufacturing department. Because a 3D model or maybe the engineering analysis always we will supply these as an output to the computer-aided manufacturing department and always the manufacturing will be the best, it may be the conventional yes that will be the basic for the computer-aided manufacturing with the help of CNC machine tools, flexible manufacturing system or with the computer integrated manufacturing, computer-aided process planning and the different hardware sense of that will be the part of computer-aided manufacturing. Computer-aided engineering is also called as engineering analysis where there will be the use of computer to analyze the different CAD model means the CAD model that is the 3D model of any mechanical component will be the prerequisite for the engineering analysis. After providing the maybe the load or maybe the thermal as a input the designer can simulate and the we can call as the engineer the design engineer will study how the product will behave, how the product will behave and so that we can validate the design. So what are the different softwares that can be used in the field of computer-aided engineering or engineering analysis like ANSI's there are the softwares like the ANSI's, Hyperverse now Hyperverse in earlier days the Hyperverse can be only used for maybe the mashing of any mechanical component for the 3D model, but now the Hyperverse or maybe the Hypermesh this software is used for the mashing and the engineering analysis both. Also there is a software like LSDINA, NASTRON and SOLIDWORKS. Now these are the some of the application in case of computer-aided design or maybe the computer-aided manufacturing and computer-aided engineering. So this is the particular application in computer-aided engineering yes you can see the load is applied in this direction the load is applied in this direction and you can see the color is changing. So if suppose the load is applied below the limit yes that will be in the green color or maybe the blue color suppose the load is exceeding the limit that will be in the red color yes you can see the stresses that will be provided for this particular application. There is one more application here the turning moment is provided for this particular gear which is located on the shaft and how the engineering analysis will be acted on this particular gear. You can see there will be a change in the color for the minimum stresses and the maximum stresses. Always we are finding always we are finding maybe the relationship between the stresses and the strains or maybe the deformation and the principles of the theories yes these are the some of the we can called as the inputs and the outputs we are getting it into the engineering analysis. Yes there is one question that is in front of you you can identify this symbol you can identify this symbol yes. Now this symbol is related to like you can you can observe it like it is like look like an robotic arm it will look like an robotic arm and which is a symbol of a particular manufacturing industry sector like industrial automation industrial automation. Now today is our concept like the product design and the CADCAM what is the relationship between the product design and CADCAM CE. There are the two concepts like we can called as the product design without CADCAM and the product design with CADCAM. Now there are the different steps which are present in the product design and CADCAM first one is the recognition of the need. So whenever we will need first of all we will take maybe the feedback from the customer with the help of a marketing people and the customer will provide the feedback that yes there is a need of the new product the new design the new manufacturing concept so that the product will work very properly very accurately and very precisely in that case there will be the recognition of the need yes there is a need of the new design process or maybe the new manufacturing process. So after that it will go towards the definition of the problem or maybe the problem statement. So in the definition of the problem how actually the product will look like how the design will look like what are the different dimensions what is the material that we have to apply during the manufacturing of the particular new product after that there is a next step that is synthesis. Synthesis means for example a 3D modeling of any mechanical component that is a manual we can called as a manual for example we have to provide maybe the orthographic sheet orthographic drawings we have to use the orthographic drawings or maybe the isometric without any CAD software this is product design without CADCAM so very hectic work will be there for the design people we have to use maybe the orthographic that will be the 2D sketch we have to use the isometric drawings perspective drawings yes and after that it will move to the analysis and the optimization engineering analysis has to be provided actual the crash test we have to provide yes after that there will be the optimization like the validating the different outputs regarding a 3D model of the mechanical component and the engineering analysis there will be the manufacturing or the evaluation or the quality control work will be there regarding that particular a component and the presentation like suppose I want to present or whether the design engineer wants to present a particular product in front of the customer always we are presenting with the help of a drawing so there will be that is called as a drafting sheet which consists of maybe the different types of like maybe it consists of maybe the front view or maybe the top view or maybe the side view or maybe the isometric view that will be developed with the help of we can called as a manual thing yes and that will be presented in front of the customer but in this process always remember that this is manual work and there may be the chances of errors so this is the product design without CADCAM now there is another product design concept which is with the help of CADCAM now we have discussed like the recognition of the need or maybe the problem definition yes now there is there is a part which is called as synthesis which is developed with the help of computer added or the computer assistance 3D modeling softwares like what are the different 3D modeling softwares like there is a 3D modeling softwares like a Katia Autodesk Inventor or Unigraphics or maybe the Solidworks yes there are the different types of 3D modeling softwares so how which software I have to use which is which depend on actually which type of application we are working on so the software which is user friendly that actually the software we have to use it in the analysis yes there will be the use of different engineering analysis software that we have discussed already in the evaluation we have to review the design and we have to validate the particular the engineering analysis and the geometrical modeling so that we can go to the manufacturing and after that after the in case of the presentation there will be the use of computer added drafting sheet now here we are using actually the different types of 3D modeling softwares like maybe for example Katia in the Katia it is very user friendly software where we can create a drafting sheet like suppose I want to create a front view top view side view yes with the help of a a single click I can create a front view top view side view or maybe the isometric view build of metal etc etc etc and just I can take the print out and I can present it in front of the maybe the manager or maybe the customer which is very useful now so we have discussed today the product design and the Karkam CAE we have discussed the relationship between the both these are the references thank you very much