Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Fms arun.k and santhosh.k


Published on

Published in: Business, Technology
  • it looks very good and very simple
    Are you sure you want to  Yes  No
    Your message goes here

Fms arun.k and santhosh.k

  1. 1.
  2. 2. Flexibility <ul><li>The capability of the manufacturing system to adapt successfully to changing environmental conditions and process requirements. </li></ul>
  3. 3. Definition of FMS <ul><li>A flexible manufacturing system (FMS) is an arrangement of machines.... interconnected by a transport system. The transporter carries work to the machines on pallets or other interface units so that work-machine registration is accurate, rapid and automatic. A central computer controls both machines and transport system... </li></ul><ul><li>It is a computer controlled process technology suitable for producing a moderate variety of products in moderate volumes. </li></ul>
  4. 4.
  5. 5. Characteristics of an FMS <ul><li>All products are variations of a stable basic design. </li></ul><ul><li>All products utilize the same family of components. </li></ul><ul><li>The number of components is only moderate. </li></ul><ul><li>The volume of each component is moderate. </li></ul>
  6. 6. Requirements for FMS with Automation <ul><li>Machine Attachments </li></ul><ul><li>Computer Integrated Manufacturing (CIM) </li></ul><ul><li>Computer Aided Design (CAD) </li></ul><ul><li>Computer Aided Manufacturing (CAM) </li></ul><ul><li>Robotics and Robots </li></ul><ul><li>Group Technology </li></ul><ul><li>N/C Machines </li></ul><ul><li>Automated Quality Control Systems </li></ul><ul><li>Automatic Storage and Retrieval Systems (ASRS) </li></ul><ul><li>Automatic Identification Systems (AIS) </li></ul><ul><li>Automatic Assembly Systems </li></ul><ul><li>Automatic Process Control </li></ul>
  7. 7. Machine Attachments <ul><li>Attachments or inexpensive add-ons to machines that reduce human effort and time required to perform operations. </li></ul><ul><li>Eg: Magazine feed attachments, quick cutting and grasping devices for lathes, strip feeders for stamping machines etc. </li></ul>
  8. 8. Numerically Controlled (N/C) Machines <ul><li>Machines with control systems that read instructions and translate them into machine operations. </li></ul><ul><li>Eg: Lathes, boring mills, curing machines, weaving machines etc. </li></ul>
  9. 9. Robotics <ul><li>Robot is a programmable machine that is capable of moving materials and performing routine, repetitive tasks which have manipulators and possess human like physiological characteristics. </li></ul><ul><li>Robotics is the science of selecting Robots to various applications. </li></ul><ul><li>Eg: Machines that weld, paint, assemble, inspect for quality, grasp, transport and store. </li></ul>
  10. 10. Automated QC Inspection <ul><li>Automated machines that perform part or all of the inspection process. </li></ul><ul><li>Eg: Electronic circuit checks, computer driven function checks, weighting robots, flexible inspection etc. </li></ul>
  11. 11. Automatic Identification Systems (AIS) <ul><li>Technologies used in automatic acquisition of product data for entry into a computer. </li></ul><ul><li>Eg: Bar-Coding systems, inventory counting, data entry for shop floor control etc. </li></ul>
  12. 12. Automated Process Controls <ul><li>Computer Systems that receive data on the production process and send adjustments to process settings. </li></ul><ul><li>Eg: Control Systems for rolling mills in manufacturing etc. </li></ul>
  13. 13. CAD/CAM <ul><li>Computer Aided Design are the Computer software programs that allow a designer to carry out geometric transformations rapidly. </li></ul><ul><li>Computer Aided Manufacturing (CAM) are the Manufacturing systems utilizing computer software programs that control the actual machine on the shop floor. </li></ul>
  14. 14. Automated Storage and Retrieval Systems <ul><li>ASRS are the systems meant for receiving orders for materials from anywhere in operations, collecting materials from locations within a warehouse and delivering the materials to work stations in operations. </li></ul><ul><li>Three major elements </li></ul><ul><ul><li>Computer and communication Systems </li></ul></ul><ul><ul><li>Automated Material handling and Delivery Systems </li></ul></ul><ul><ul><li>Storage and Retrieval Systems in warehouse </li></ul></ul>
  15. 15. Computer Integrated Manufacturing <ul><li>Computer Information Systems utilizing a shared manufacturing database for engineering design, manufacturing engineering, factory production, and information management. </li></ul>
  16. 16. Group Technology <ul><li>A way of organizing and using data for components that have similar properties and manufacturing requirements. </li></ul><ul><li>GT results in </li></ul><ul><ul><li>Reduced item handling and movement times. </li></ul></ul><ul><ul><li>Reduced Change over times. </li></ul></ul><ul><ul><li>Reduced idle wait time of items at the machine. </li></ul></ul><ul><ul><li>Reduced work in process. </li></ul></ul>
  17. 17. Advantages <ul><li>Increased output and enhanced productivity. </li></ul><ul><li>Improved and uniform quality. </li></ul><ul><li>Reduced cost. </li></ul><ul><li>Fewer accidents. </li></ul><ul><li>Better production control. </li></ul><ul><li>Lost Prerogatives gained. </li></ul><ul><li>Dangerous and unpleasant tasks. </li></ul>
  18. 18. Advantages Contd… <ul><li>Reduced Inventories </li></ul><ul><li>Greater operating flexibility </li></ul><ul><li>Reduced lead time and scrap </li></ul><ul><li>Improved reliability </li></ul><ul><li>Design freedom </li></ul>
  19. 19. Disadvantages <ul><li>Heavy capital investment </li></ul><ul><li>Displacement of labour </li></ul><ul><li>Benefit of employee suggestion lost </li></ul><ul><li>Tighter specification may be needed </li></ul><ul><li>Costs of supply failure increases </li></ul><ul><li>Slack season would be disastrous </li></ul><ul><li>Dehumanization </li></ul><ul><li>Problems of developing countries </li></ul>
  20. 20. Flexibility Without Automation <ul><li>It is usually referred to as “attaining the effect of automation </li></ul><ul><li>without the expense” </li></ul><ul><li>Preautomation </li></ul><ul><li>Modular Design </li></ul><ul><li>Standardization </li></ul>
  21. 21. Preautomation <ul><li>This attacks one of the Shingo’s 7 wastes, the waste of processing itself. </li></ul><ul><li>It makes no sense in automating a stage of production process when that stage adds no value to the product. </li></ul><ul><li>Preautomation studies reveal unneeded equipment and activities that can be eliminated rather than automated. </li></ul>
  22. 22. <ul><li>Modular Design: </li></ul><ul><li>The creation of products from some combination of basic, preexisting subsystems. </li></ul><ul><li>Standardization: </li></ul><ul><li>Use of uniform standardized components in the products. Eg: screws, spark plugs, nuts & bolts etc. </li></ul>
  23. 23. Industrial Examples <ul><li>The General Motors Fairfax plant in Kansas city, Missouri, produces Pontiac Grand Prixs. </li></ul><ul><li>Earlier, for producing cars with different colours it took time for shutting down the painting area so that it could be cleared of dust and scrubbed. </li></ul><ul><li>Today GM has reduced the production line delays by using Technologies such as airtight chambers and high powdered vacuum suctions. </li></ul>
  24. 24. Industrial Examples Contd… <ul><li>General Motors, in a joint venture with Toyota at the NUMMI (New United Motors Manufacturing Inc.) plant outside San Francisco. </li></ul><ul><li>NUMMI has installed a new press line with Exchange of die techniques like IED, OED, SMED and OTED. </li></ul><ul><li>It has reduced the time taken for die exchange from hours/days to minutes. </li></ul>
  25. 25. Conclusion <ul><li>Factories of the future will have stress on high product quality, greater emphasis on flexibility, fast delivery of customer orders, extensive use of CAD/CAM for product design, structural changes etc. </li></ul><ul><li>To fulfill all these requirements Flexible Manufacturing Systems (FMS) has to play a very important role… </li></ul>