Task 8. You are to give a short introductory lecture to a group of students about Computer Integrated Manufacturing. Make some notes and get ready to speak.
Task 9. Translate into English:
1. Комп’ютер управляє всіма процесами, а цифрова інформація зв’язує їх разом.
2. Гнучка виробнича система для механічної обробки є обов’язковим компонентом автоматизованого виробництва.
3. CAD/CAM зв’язує проектування та виробництво та значно скорочує час циклів.
4. До вироблення зразку програмісти аналізують та перевіряють проекти за допомогою новітніх програм.
5. З часом креслення буде повністю заміщене електронними файлами, чиї можливості набагато ширше.
Unit 23.
MAIN ISSUES OF COMPUTER-INTEGRATED MANUFACTURING
Word list:
| 1. | generative process planning | - автоматизована технологія планування виробництва |
| 2. | generation | - покоління |
| 3. | process plan | - технологічний проект |
| 4. | cellular manufacturing concept | - концепція гнучкого автоматизованого виробництва |
| 5. | download | - завантажувати |
| 6. | incompatibility | - невідповідність, несумісність |
| 7. | supervisory controller | - диспетчер |
| 8. | time-consuming | - той, що потребує багато часу |
| 9. | pitfall | - пастка, складність |
| 10. | clumsily | - незграбно |
| 11. | integrity | - надійність, цілісність |
| 12. | upkeep | - спостереження, підтримка |
| 13. | extensive | - розширений |
| 14. | priority | - першочергова задача |
| 15. | unprecedented | - безпрецедентний, що не має прикладу |
| 16. | swift | - швидкий |
| 17. | velocity | - швидкість |
| 18. | prudent | - розсудливий, розважливий |
| 19. | software package | - пакет програм |
| 20. | wholesale | - масовий |
Task 1. Match the words with opposite meaning:
| 1. | time-consuming | a. | careless |
| 2. | integrity | b. | graciously |
| 3. | clumsily | c. | individual |
| 4. | swift | d. | separation |
| 5. | unprecedented | e. | suitability |
| 6. | incompatibility | f. | slow |
| 7. | prudent | g. | economical |
| 8. | wholesale | h. | conventional |
Task 2. Match the words (1 - 6) with their definitions (a - f):
| 1. | generation | a. | unsuspected danger |
| 2. | pitfall | b. | rate of motion |
| 3. | priority | c. | far-reaching |
| 4. | velocity | d. | person who watches and directs |
| 5. | extensive | e. | all persons born about the same time, and, therefore, of about the same age |
| 6. | supervisor | f. | high place among competing chains |
Task 3. Match the sentence halves 1 - 6 with a – f:
| 1. | The plane crash happened | a. | as its upkeep costs a lot of money. |
| 2. | They have developed | b. | solving this difficult and time-consuming task. |
| 3. | The program misfunctioned | c. | for developing an advanced software package. |
| 4. | We had to refuse to buy a new equipment | d. | an innovative process plan. |
| 5. | The team of researchers was given a bonus | e. | because of the supervisory controller’s mistake. |
| 6. | They put a lot of efforts into | f. | because the wrong parameters had been downloaded. |
Task 4. Complete the table:
| ADJECTIVE | NOUN |
| extension | |
| incompatible | |
| clumsiness | |
| prior | |
| integral | |
| prudence |
Task 5. Read the text to find answers to the following questions:
1) In what way does the advanced generation of CAD/CAM differ from the previous ones?
2) Is it always profitable to use CIM?
3) What can substitute human mind in reacting to possible changes?
4) What are the strong points of CIM?
Main Issues of Computer-Integrated Manufacturing
Generative process planning is an advanced generation of CAD/CAM. This uses a more powerful software program to develop a process plan based on the part geometry, the number of parts to be made, and information about facilities in the plant. It can select the best tool and fixture, and it can calculate cost and time.
Flexible machining systems (FMS) are extensions of group technology and cellular manufacturing concepts. Using integrated CAD/CAM, parts can be designed and programmed in half the time it would normally take to do the engineering. The part programs can be downloaded to a CNC machining center under the control of an FMS host computer. The FMS host can schedule the CNC and the parts needed to perform the work.
Computer integrated manufacturing (CIM) can include different combinations of the tools listed above.
One of the key issues regarding CIM is equipment incompatibility and difficulty of integration of protocols. Integrating different brand equipment controllers with robots, conveyors and supervisory controllers is a time-consuming task with a lot of pitfalls. Quite often, the large investment and time required for software, hardware, communications, and integration cannot be financially justified easily.
Another key issue is data integrity. Machines react clumsily to bad data and the costs of data upkeep as well as general information systems departmental costs are higher than in a non-CIM facility.
Another issue is the attempt to program extensive logic to produce schedules and optimize part sequence. There is no substitute for the human mind in reacting to a dynamic day-to-day manufacturing schedule and changing priorities.
Just like anything else, computer integrated manufacturing is no panacea. It is an operational tool that, if implemented properly, will provide a new dimension to competing: quickly introducing new high quality products and delivering them with unprecedented lead times, swift decisions, and manufacturing products with high velocity.
It might be more prudent for a company to begin the process of computer integration with CAD/CAM and an integrated business data base. There are many reliable and proven CAD/CAM software packages available, as there are integrated business software systems. Taking small steps instead of a wholesale CIM approach is advisable.
Task 6. Choose the correct words to complete the sentences (1 - 4):
1. CIM system needs / does not need additional time and money to function properly.
2. A non-CIM facility is more / less expensive to upkeep than the one with CIM.
3. Computer integrated manufacturing can / cannot solve all the problems of modern production.
4. Companies are / aren’t recommended to introduce the whole CIM approach instead of taking small steps.
Task 7. Make the sentences complete using the words from the box:
| time-consuming task | tool pitfalls | software |
| investment | operational tool | robots |
1. Generative process planning uses powerful … to develop a process and it can select the best … and fixture.
2. Integrating different brand equipment controllers with …, conveyors and supervisory controllers is a … .
3. It is often not easy to justify financially the … and time required for software, hardware, communication and integration.
4. CIM is just an …, not a panacea.
5. Companies should be prudent starting to use CIM because of its numerous … .
Task 8. Translate into English:
1. За допомогою автоматизованої технології планування виробництва може бути розроблений технологічний план, що враховує параметри деталей, їхню кількість та можливості виробництва.
2. При комп’ютерно-інтегрованому виробництві можуть виникнути складності з інтегруванням протоколів, тому що обладнання може бути від різних виробників.
3. У комп’ютерно-інтегрованому виробництві витрати на поновлення даних та утримання відділу інформаційних технологій вищі, ніж у звичайному виробництві.
4. Нові параметри конкуренції можуть включати швидке втілення нової продукції, зниження часу на підготовку виробництва та підвищення темпу самого виробництва.
Unit 24.
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