- •Isbn 978-5-89838-619-1
- •Предисловие
- •Engineering profession
- •1. Read and memorize the following words and word-combinations:
- •2. From the list below choose English word-combinations which correspond to the following Russian ones:
- •The Engineering Profession
- •4. Make up sentences out of the two parts:
- •5. Give a brief summary of the text. Text 2 Engineering Specialities
- •1. Answer the following questions:
- •2. A) The following words are translator's "false friends" or pseudointernational. Write out their meanings which correspond to the context:
- •3. Put the following verbs in the alphabetical order and find their meanings in the dictionary. Then write out word-combinations with them from the text and translate them into Russian.
- •Exercises
- •1. Answer the following questions:
- •2. Translate the following international words, consult the dictionary, if necessary:
- •3. Make up sentences out of the two parts:
- •4. Complete the following diagram:
- •5. Try to translate the following text without using the dictionary: So What Is Engineering?
- •6. Give a brief summary of the text.
- •The Essential Triangle
- •Exercises
- •1. Answer the following questions:
- •2. Using the dictionary decide which of the following word-combinations are translator's "false friends" and which are international words, translate them into Russian:
- •3. Find in the text nouns derived from the following verbs and translate them:
- •4. Make up sentences out of the two parts:
- •5. Choose the definition that fits each word or phrase as it is used in the text:
- •6. Complete the table using information from the text:
- •7. Speak of the role of the scientist, the engineer and the technologist in technological and industrial progress using the following words and word-combinations:
- •1. Choose the sentences which are true to the information of Text1 (Выберите предложения, соответствующие информации текста 1):
- •2. Choose the right Russian equivalent to the following English sentence (Выберите верный русский эквивалент следующему английскому предложению):
- •3. Choose the right English equivalent to the following Russian sentence (Выберите верный английский эквивалент следующему русскому предложению):
- •Insert the proper words into the following sentences (Вставьте подходящие по смыслу слова в следующие предложения):
- •Unit 2 milling and milling machines
- •1. Read and memorize the following words and word-combinations:
- •2. From the list below choose English word-combinations which correspond to the following Russian ones:
- •Milling
- •1. Find in the text synonyms for the following English words:
- •2. Find in the text antonyms for the following English words:
- •3. Choose the definition that fits each word or phrase as it is used in the text:
- •4. Answer the following questions:
- •Text 2 Plain Milling Machines
- •1. Give different meanings of the following words:
- •2. Choose English equivalents to:
- •3. Find the words of the active vocabulary in the text. Translate the sentences they are used in.
- •4. Make up sentences out of the two parts:
- •5. Answer the following questions:
- •Milling Cutters
- •1. Find all the words with – ed endings in the text. State their origin. Translate the sentences into Russian.
- •2. Find in the text synonyms for the following English words:
- •3. Choose the definition that fits each word or phrase as it is used in the text:
- •3. Choose the right English equivalent to the following Russian sentence (Выберите верный английский эквивалент следующему русскому предложению):
- •Insert the proper words into the following sentences (Вставьте подходящие по смыслу слова в следующие предложения):
- •Unit 3 turning and turning machines (lathes)
- •1. Read and memorize the following words and word-combinations:
- •2. From the list below choose English word-combinations which correspond to the following Russian ones:
- •Types of lathes
- •1. Give the main points of the text, answering the following questions:
- •2. Choose synonyms out of the following list:
- •3. Fill in the blanks with the suitable words from the text. The words are given below:
- •4. Perform the following tasks, basing of the text:
- •5. Characterize lathes according to the following plan:
- •Engine Lathe
- •1. Give the main points of the text, answering the following questions:
- •2. Using the text, give derivatives from the following words and translate them into Russian:
- •3. Replace Russian words and word combinations by the corresponding English equivalents:
- •4. Make up questions to which the italicized words are answers:
- •5. Make up a summary of the text.
- •Vertical Eight - Spindle Semiautomatics
- •5. Give a brief summary of the text.
- •1. Choose the sentences which are true to the information of Text 1 (Выберите предложения, соответствующие информации текста 1):
- •2. Choose the right Russian equivalent to the following English sentence (Выберите верный русский эквивалент следующему английскому предложению):
- •3. Choose the right English equivalent to the following Russian sentence (Выберите верный английский эквивалент следующему русскому предложению):
- •Insert the proper words into the following sentences (Вставьте подходящие по смыслу слова в следующие предложения):
- •Unit 4 drilling and drilling machines
- •1. Read and memorize the following words and word-combinations:
- •2. From the list below choose English word-combinations which correspond to the following Russian ones:
- •Purpose and Field of Application of Drilling Machines
- •1. Answer the following questions, using the information from the text:
- •2. Translate the following groups of words, paying attention to the meaning of suffixes:
- •3. Fill in the blanks with the preposition: for, of, in, with, by, out, from, to:
- •4. Find the English equivalents for the following:
- •5. Supply the missing word:
- •Text 2 Upright Drill Presses
- •1. Underline the suffixes in the following words and state what part of speech they belong to:
- •2. Give different meanings of the following words:
- •3. Translate the following sentences observing different meanings of the italicized words and word combinations:
- •4. Guess the meaning:
- •5. Describe the function and characteristics of the principal units of an upright drill press, using the active vocabulary of the text:
- •6. Try to translate the text without using the dictionary:
- •Text 3 Radial Drills
- •1. Find in the text:
- •2. Find English equivalents:
- •4. Translate the following in writing.
- •5. Make a brief summary of the text.
- •1. Choose the sentences which are true to the information of Text 1 (Выберите предложения, соответствующие информации текста 1):
- •2. Choose the right Russian equivalent to the following English sentence (Выберите верный русский эквивалент следующему английскому предложению):
- •3. Choose the right English equivalent to the following Russian sentence (Выберите верный английский эквивалент следующему русскому предложению):
- •Insert the proper words into the following sentences (Вставьте подходящие по смыслу слова в следующие предложения):
- •2. From the list below choose English word-combinations which correspond to the following Russian ones:
- •Unit 5 grinding and grinding machines
- •1. Read and memorize the following words and word-combinations:
- •Purpose and Field of Application of Grinding Machines
- •Cylindrical Grinding Machines
- •1. Name the main points of the text answering the following questions:
- •2. Guess the meaning:
- •4. Find in the text verbs for the following nouns:
- •5. Underline the suffixes in the following words and state what part of speech they belong to:
- •6. Summarize the text. Text 3
- •Internal Grinding Machines
- •1. Name the main points of the text answering the following questions:
- •2. Fill in the blanks using the words below:
- •3. Choose the right English equivalent to the following Russian sentence (Выберите верный английский эквивалент следующему русскому предложению):
- •Insert the proper words into the following sentences (Вставьте подходящие по смыслу слова в следующие предложения):
- •Choose the right variant (Выберите правильный вариант):
- •T exts for additional reading Unit 1
- •Industrial Engineering and Automation
- •Towards Flexible Production Facilities
- •Four Industrial Revolutions
- •The Role of Science in Manufacture
- •Unit 2 Milling Cutters with Helical Teeth
- •Special Milling machines
- •Unit 3 Turning a Profit by Reducing Set-ups
- •Modular Tooling is Key to Turning Productivity
- •Numerically Controlled Chucking Lathe
- •Metal Removal Counts
- •Unit 4 Laser Drilling Technology
- •Laser drilling offers numerous benefits
- •Drilling Machines Model 2m57
- •Drilling Machines Model 2p53
- •Unit 5 Creep Feed Grinding
- •Ceramic Fills Gap between Aluminum Oxide and Superabrasives
- •Tip Grinder Boots Aero Performance
- •Список использованной и рекомендуемой литературы
- •Заключение
- •Оглавление
Purpose and Field of Application of Grinding Machines
A distinguishing feature of grinding machines is the rotating abrasive tool. This group of machines is employed chiefly for finish machining operations, accomplished by removing layers of metal from the work surface with an accuracy that may reach tenth of a micron, and producing a very high class of surface finish.
Grinding machines handle workpieces that have been previously machined, in most cases, in other types of machine tools. The magnitude of the grinding allowance depends upon the required class of accuracy, size of the work and the preceding machining operation to which it has been subjected.
Improvements made in recent years in blank manufacture (rolling, drop forging and other precision casting processes) enable high-production grinders to be used in many cases for rough and finish grinding instead of lathes, milling and other machines performing semifinishing operations.
Operations efficiently performed by grinding machines include: a) roughing and cutting off blanks; b) precise machining of various surfaces: surfaces of revolution, profiles of gear teeth, thread and other helical surfaces, contoured surfaces, etc.; c) sharpening all types of cutting tools.
Grinding machines find application in all branches of the engineering industries. There are general- and single-purpose grinding machines. In accordance with the ground surface and the type of grinding they do, general-purpose grinding machines can be classified into the following main types: cylindrical, internal, surface and centerless grinding machines.
The accuracy of surfaces machined in grinders depends upon the type of operation being performed (cylindrical grinding, internal grinding, etc.) and the grinding speeds and feeds.
EXERCISES
1. Name the main points of the text answering the following questions:
What is the main distinguishing feature of grinding machines?
Where is this group of machines employed?
What does the magnitude of grinding allowance depend upon?
Can you name the operations performed by grinding machines?
What types of general-purpose grinding machines do you know?
2. Find English equivalents to the following Russian words and word-combinations:
Чистовая обработка, отшлифованная поверхность, специализированный шлифовальный станок, поверхности вращения, усовершенствование, степень точности, производство заготовок, подвергать, высокопроизводительный.
3. Find in the text synonyms for the following English words:
Mainly, sphere, to fulfil, workpiece, formerly, precision, to use.
4. Find in the text verbs for the following nouns:
Employment, removal, production, machining, dependence, requirement, subject, performance.
5. Make up questions to which the italicized words are answers:
The group of grinding machines is employed chiefly for finish machining operations.
Grinding machines find application in all branches of engineering.
The magnitude of grinding allowance depends upon the required class of accuracy, size of the work and preceding machining operations.
A distinguishing feature of grinding machines is the rotating abrasive tool.
6. Summarize the text.
T ext 2