What is Industrial and Systems Engineering?
IISE Definition of Industrial Engineering
Industrial and systems engineering (ISE) is concerned with the design, improvement and installation of integrated systems of people, materials, information, equipment and energy. It draws upon specialized knowledge and skill in the mathematical, physical, and social sciences together with the principles and methods of engineering analysis and design, to specify, predict, and evaluate the results to be obtained from such systems.
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Part of Main Topic: Analysis of Items in Operation Information Sheet
Analysis of Material in Processing Operations
The following questions will help in productivity analysis of material:
1. Does the material specified appear suitable for the purpose for which it is to be used?
2. Could a less expensive material be substituted that would function as well?
3. Could a lighter gage material be used?
4. Is the material furnished in suitable condition for use?
5. Could the supplier perform additional work upon the material that would make it better suited for its use?
6. Is the size of the material the most economical?
7. If bar stock or tubing, is the material straight?
8. If a casting or forging, is the excess stock sufficient for machining purposes but not excessive?
9. Can the machinability of the material be improved by heat-treatment or in other ways?
10. Do castings have hard spots or burned-in core sand that should be eliminated?
11. Are castings properly cleaned and have all fins, gate ends, and riser bases been removed?
12. Is material sufficiently clean and free from rust?
13. If coated with a preserving compound, how does this compound affect dies?
14. Is material ordered in amounts and sizes that permit its utilization with a minimum amount of waste, scrap, or short ends?
15. Is material uniform and reasonably free from flaws and defects?
16. Is material utilized to the best advantage during processing?
17. Where yield from a given amount of material depends upon the care to be taken in operating the machine or handtools or the skill of the operator, is any record of yield kept?
18. Is miscellaneous material used for assembly, such as nails, screws, wire, solder, rivets, paste, and washers, suitable?
19. Are the indirect or supply materials such as cutting oil, molding sand, or lubricants best suited to the job?
20. Are materials used in connection with the process, such as gas, fuel oil, coal, coke, compressed air, water, electricity, acids, and paints, suitable, and is their use controlled and economical?
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Invite readers to suggest additional questions to be evaluated.
Machinability can be expressed as a percentage or a normalized value. The American Iron and Steel Institute (AISI) has determined AISI No. 1112 carbon steel a machinability rating of 100%.
ReplyDeletehttps://nraoiekc.blogspot.com/2020/07/work-material-machinability-industrial.html