- •Затверджено Методичною радою нтуу “кпі”
- •Module 1 text a
- •1. Learn the following words and word combinations:
- •9. Put the questions to the underlined words.
- •10. Communicative situations:
- •11. Summarize and retell the text. Text b welding: introduction
- •1. Learn the new words and word combinations:
- •2. Read and translate the text.
- •3. Answer the following questions:
- •4. Are the following statements about the text true or false? Why?
- •5. Complete the following sentences:
- •6. Find in the text the English equivalents of the following word combinations.
- •7. Chose the correct definition to the word:
- •8. Fill in the gaps with proper prepositions.
- •9. Put the questions to the underline words or word combinations.
- •10. Communicative situations:
- •11. Make up a summary of the text and use it to retell the text. Text c bending, projection, shearing, staking
- •Exercises
- •1. Learn the following words and word combinations:
- •2. Read and translate the text.
- •3. Answer the following questions:
- •4. Translate from Ukrainian into English.
- •5. Combine the following words to get proper terms:
- •6. Make the nouns from the verbs:
- •7. Put the verbs in brackets in the correct form.
- •8. Fill in the gaps with the proper prepositions.
- •9. Complete the following sentences:
- •Self-assessment module 1
- •4. Give the English equivalents of the words:
- •6. Choose the topic and prepare your mini-presentation:
- •Module 2 text a systems of automatic control of arc welding
- •Exercises
- •1. Learn the following words and word-combinations:
- •2. Read and translate the text.
- •3. Answer the following questions:
- •4. Are the following statements about the text true or false? Why?
- •5. Complete the following sentences choosing the right word in brackets.
- •6. Put the following words in the correct order.
- •7. Put questions to the following answers:
- •8. Find the English equivalents of the following words:
- •9. Find in the text the sentences with Passive Voice.
- •10. Retell the text. Text b electro-slag welding
- •Exercises
- •1. Learn the new words and word combinations:
- •Text c ultrasonic welding
- •Exercises
- •6. Put all possible questions to the following sentences:
- •Self-assessment module 2
- •2.Give the Ukrainian equivalents of the following words and word-combinations:
- •3. Are the following statements true or false?
- •4. Give the definitions to the following words:
- •5. Make up your own sentences using the following words and word combinations:
- •6. Choose the topic and prepare your mini-presentation:
- •Module 3 text a friction stir welding (fsw) of aluminium alloys
- •Exercises
- •1. Learn new words and word combinations:
- •10. Complete the questions on the text.
- •11. Communicative situations:
- •12. Retell the text. Text b plasma
- •Exercises
- •5. Continue the following sentences:
- •6. Fill in the gaps using the following words and word-combinations:
- •7. Find in the text the sentences with Passive Voice.
- •8. Make 10 questions to the text.
- •9. Choose the correct verb form in the following sentences:
- •10. Retell the text. Text c laser welding
- •Exercises
- •1. Learn the following words and word combinations:
- •2. Read and translate the text.
- •3. Answer the following questions:
- •4. Decide, whether the statements below are true or false. Why?
- •5. Put all possible questions to the sentences.
- •6. Choose the correct definition to the word:
- •7. Fill in the gaps with a proper article.
- •Self-assessment module 3
- •2. Make the verbs from the nouns:
- •3. Give the definitions to the following words:
- •4. Are the following statements true or false?
- •5. Give the Ukrainian equivalents of the words:
- •6. Choose the topic and prepare your mini-presentation:
- •Module 4 text a some aspects of corrosion of high-alloy steel
- •Exercises
- •1. Learn the following words and word-combinations:
- •2. Read and translate the text.
- •3. Answer the following questions:
- •4. Are the following statements about the text true of false? Why?
- •5. Fill in the gaps using the following words and word-combinations:
- •6. Put all possible questions to the following sentences:
- •7. Complete the following sentences from the text:
- •8. Put the following verbs in the correct form.
- •9. Find in the text the sentences with the modal verbs. Explain them.
- •10. Put ten questions to the text.
- •11. Retell the text. Text b electric welding of soft tissues in surgery
- •Exercises
- •1. Learn the following words and word combinations:
- •2. Read and translate the text.
- •3. Answer the following questions:
- •4. Combine the following words to receive proper terms:
- •5. Insert the following preposition (in-5,with-2, on-1, by-2, of-4, for-2).
- •6. Give three forms of comparison of the following adjectives:
- •7. Translate from Ukrainian into English.
- •8. Put the verbs in brackets in a proper form.
- •9. Complete the questions on the text.
- •10. Communicative situations:
- •11. Retell the text. Text c thermit welding
- •Exercises
- •1. Learn the following words and word-combinations:
- •2. Read and translate the text.
- •3. Answer the following questions:
- •4. Are the following statements about the text true or false? Why?
- •5. Fill in the gaps using the following words and word-combinations:
- •6. Translate into Ukrainian paying attention to the Participles.
- •Self-assessment module 4
- •2. Give the English equivalents of the following words and word-combinations:
- •3. Are the following statements true or false?
- •4. Read the text. Comment on the advantages and disadvantages of the floating welded mega-structures.
- •5. Choose the topic and prepare your mini-presentation:
- •Appendix
- •2. English proverbs and sayings.
- •Content
9. Complete the questions on the text.
Did/Was ______?
___or____?
_________didn’t/wasn’t ?
When/Why/Where?
Who/What______?
10. Communicative situations:
Make a report on the topic “ The role of laser welding when joining soft tissues in medicine”
Make up a dialogue on the topic “Advantages of the operations with electric welding tools”
11. Retell the text. Text c thermit welding
Although widely used in the railroad industry, welding is probably one of the least understood pro the balance of industry. Developed as an improved earlier practice of bolting rail joints together, thermit welding produces some closures with impact and fatigue properties that may be less than desirable. The 1996 Conrail study showed that in 1994 26,5% of total rail defects were attributable to weld failures, 18,3% were due to defective thermit welds and 8,2% were due to defective flash welds. However, the portability, cost-effectiveness and convenience of thermit welding result in its continued extensive use. Thermit weld is usually as much a casting as it is a weld and consistency may be difficult to achieve. Weld charge manufacturers have made significant improvements to thermit weld quality and hardness in resent years. Comparisons of welds made using thermit charges from two suppliers showed that the premium charges of one firm were typically harder and stronger than the standard charges produced by the other, although there was a substantially greater spread in the strength values obtained with the welds of the first firm. Thermit weld charge manufactures can provide a variety of weld hardness depending on customer needs. Higher hardness is deemed to be better considering the desire of the railroad manufactures to have the rails last longer under increasingly severe axel loadings and tonnages. The higher hardness also improves fatigue and deformation resistance and more closely matches the hardness of new head-hardened rail, which approaches 400 brinell. Harder welds also stand up better to heavy traffic and help prevent localized rail head depressions and deformation at the weld.
Aluminium plays a key role in thermit welding, where it not only reacts with iron dioxide to provide the original heat for welding, but also serves as a dioxider in the weld charge. Here, it tends to react with oxygen in the steel-liquid casting as if solidifier reducing weld porosity and increasing tensile strength. However, too much aluminium will embrittle the steel. To ensure weld quality and consistency, it is important to control all weld charge alloying elements and residuals to keep them within specifications.
Many variables can affect the properties of welds produced by thermit field welding. Among them are welding procedures, including: the amount of root opening, preheating, rail movement, rail cleanliness, weather during welding, crucible cleanliness and welder skills.
Exercises
1. Learn the following words and word-combinations:
closure -змикання
fatigue -втомленість
consistency -плотність
rail last -витривалість
crucible -тигель
deoxidiser -розкислювач
portability -взаємозамінення.