Unit 2. Conventional Machine Tools
Exercise 1. Two halves of the following proverbs have got mixed up. Match the endings on the right to the beginnings on the left. Give the explanation of them in English. То use a steam-hammer to crack nuts Хорошо делается то, well done It is never too late один раз отрежь Стрелять из пушек to learn Score twice по воробьям By hook век учись Всеми правдами before you cut once Поменьше говори, что делается своими руками Self done is or by crook Keep your mouth shut и неправдами Семь раз отмерь, and your ears open Век живи, побольше слушай
Exercise 2. Read the following words and define their part of speech (noun, adjective and verb). Decide where the stress falls in each word. Underline the stressed syllable(s). Basic, lathe, conventional, diagonal, longitudinal, abrasive, horizontal, grinder, portable, parallel, similar, rotation, various, laterally, displacement, auxiliary,advance, direction, reciprocating, general, range,lubricate, previously, specification, clamping, toughness, diamond, mechanism, elevated, vanadium, ceramic, stabilize, standardized, decade. Exercise 3. Complete the sentences with the correct word. Don't forget to decide what part of speech each word is. Cut Cutter Cutting 1) It's all very well for you to say so, but to... a figure in the stone is not child's play. 2) Examining the stone is the first step in diamond.... 3) Wood-...., in other words, a lumberjack: somebody who cuts down trees.
Machinery Machine Machinist 1) It is a..., simple device that affects the force needed to do a certain amount of work. 2) China’s heavy industries include shipbuilding and the manufacture of locomotives, tractors, mining..., power-generating equipment and so on. 3) Whose job involves operating or repairing machine tools, especially in a factory? It is a....
Slotting Slot Slotted 1) The first... machine, a so-called one-armed bandit, was invented in 1887 by Charles Fey from San Francisco. 2)... machines perform their function at high speed reaching up to 1600 pcs per minute. 3) Discs may also be..., where shallow (мелкие) channels are machined into the disc to aid in removing dust and gas. Exercise 4. Read, translate and remember the names of conventional machine tools. Lathe - токарный станок Shaper – строгальный станок Planer – продольно-строгальный станок Milling machine – фрезерный станок Drilling machine – сверлильный станок Boring machine – бурильная машина Reciprocating machine tool - станок с возвратно-поступательным главным движением Slotting machine - прорезной станок Grinder – шлифовальный станок Saw – пила Metal-forming machine - 1) машина для обработки металлов давлением 2) высадочный пресс Turning machine - токарный станок Exercise 5. Read new words and word combinations: Stroke - такт; взмах Lateral displacement - боковое смещение To advance laterally – двигать вбок, в сторону To expose – выдвигать Cut – разрез, срез Cutter - резец, резак, фреза; режущий станок To cut thread - нарезать резьбу Longitudinal – продольный Conical - конический Straight-line - прямолинейный Slot - щелевое отверстие, бороздка, желобок Сircumference - длина окружности Conventionally - обычно, стандартно Gear teeth - зубья шестерни Recess - канавка, отверстие, паз Reaming – расширение Tapping – выколачивание To lap – притирать, накладывать To hone - хонинговать, полировать Multispindle unit - многошпиндельный токарный автомат Abrasive wheel – абразивный, шлифовальный круг Band-sawing machines – ленточная пила Vise – зажимное приспособление, тиски Feed mechanism – механизм подачи, питатель Versatile - разносторонний
Exercise 6. Before reading the text, try to answer the questions: 1) How could you translate the term “conventional machine tool”? 2) What do you know about conventional machine tools?
Read the text and complete it with the following words and phrases. Shaper Lathe Planer Saws Milling machine Drilling and Boring Machines Cutting Tools and Fluids Grinders
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