 Hello and welcome to the video lecture on automation and CADCAM software. Learning outcomes. At the end of this session, students will be able to apply CAD fundamentals as well as advanced manufacturing technology to industry problems. Learning topics will be discussed in this particular video lecture. Recap of third session which was about software configuration for CAD system, then automation and CADCAM software. Software configuration for CAD system. In working with graphic system, there are various activities are involved which are combined rather than sequentially the user constructs physical model and inputs it to the memory by developing in the form of a drawing or images which will be saved to the system. The interactive computer graphics mainly consist of graphic software and it will be divided into three modules which are as follows. Graphics package, application program, application database, application program. The application program is central module of ICG graphics software. It controls the software into and retrieves data out of application database. The application program drives by graphics package. The application program will help to develop a physical model out of the image to the user and which will be displayed on the screen. Application program are developed for specific programs. The problem may consist of applications of architecture, construction, chemical engineering, mechanical components, electrical components, automobile and aerospace etc. Graphics package. It is a support between the user and the graphic terminal. It provides graphical interaction between user and system. It also works as an intermediate between graphic software and user. It consists of input subroutines and output subroutines. Input subroutines, it accepts input commands from the user and submits it to the application program. Output subroutine. It controls the display terminal. That means it converts physical model or application model into 2D or 3D computer pictures. Application database. This database contains mathematical, logical, numerical definitions of models such as electronic circuits, mechanical components, automobile bodies. It also consists of alphanumeric information associated with model such as bill of material, mass properties etc. The contents of the database can be readily displayed on the CRT or plotted out in a hard copy format. Now let us discuss about how is the automation ensured in different types of production. So in this graph we can see totally 4 types of production. We will be discussing in detail how is the variety, how is the variety changing and what is the production quantity there. So let us discuss about continuous flow production. It basically means manufacturing, producing or processing materials without interruption. Example it may be a chemical plant, oil refineries. So how is the automation achieved? Use of sensor technology to measure important process variables. Use of sophisticated control and optimized strategies. Fully computer automated lines. Mass production. Production in large amounts of a particular one product. Material engine blocks. Automation achievement. Automated transfer machines. Dial indexing machines. Fully automated assembly lines. Industrial robots for smart welding, parts loading, spray painting etc. Automated material handling system. Large production. Production of medium lot sizes of some product and then shifting to next product. Here the process is repeated frequently. Example book or it may be a clothing. Automation achievement. Use of numerical control, direct numerical control and computer numerical control machines. Use of NC machines, DNC and CNC machines. Adoptive control machine. Robots for spot welding, part handling etc. Computer integrated manufacturing systems. Workshop production. Production of low quantities specialized product. The products are often customized and technologically complex. Example satellite prototypes. Automation achievement. Use of numerical control, computer numerical control and direct numerical control machine. Use of robots for spot welding, spray painting etc. Adoptive control manufacturing system. Now pause this video for a few seconds and try to write answer to the following question. State true or false? Satellite is an example of job shop production.