Unit III welding

Pre-reading

Before studying the material of this unit, read and memorize what the term “welding” means.

Welding

– a process when metal parts are joined together by the application of heat, pressure, or a combination of both.

Words and Expressions to be studied:

pressure welding	– сварка давлением
heat welding	– сварка нагреванием
instead (of)	– вместо, взамен
bolting	– скрепление болтами
riveting	– клепка
to depend (on, upon)	– зависеть от
purpose	– цель
available	– имеющийся в наличии
source	– источник
gas welding	– газосварка
arc wading	– электродуговая сварка
resistance welding	– контактная сварка
electron-beam welding	– электронно-лучевая сварка
flame	– пламя
edge	– край
simultaneously	– одновременно
filler	– наполнитель
rod	– прут, стержень
to melt	– плавить(ся)
joint	– соединение, стык
advantage	– преимущество
surface	– поверхность
coated	– покрытый
flux	– флюс
fusible	– плавкий
to shield	– заслонять, защищать
tip	– кончик
gas-tungsten	– сварка оплавлением вольфрамовым электродом в среде инертного газа
bare	– голый
rate	– зд. скорость
gas-metal arc	– аргоно-дуговая сварка
considerably	– значительно, гораздо
surrounding	– окружающий
carbon dioxide	– углекислый газ
droplet	– капелька
liquid	– жидкость, жидкий
beneath	–под, ниже, внизу
layer	– слой
weld seam	– сварной шов
clamp	– зажим, зажимать
semi-automatic	– полуавтомати­ческий
to create	– создавать
submerge	– погружать

While reading the Text of this Unit, you’ll find these words and expressions. They will be given as italicized ones. You may also consult any English-Russian dictionary.

Choose your level and make pre-reading tasks

Level A

I. While reading the text “Welding processes” pay attention to the following word groups and a) read and translate them into Russian; b) define the parts of speech of the italicized words; c) tell what you know about welding.

The application of heat, construction of many types of structures, the most common welding process, the properties of the metals, several advantages over other welding methods, a high-quality weld, very efficient, the flow of current, wire manufacturing, especially in automobile industry.

II. Make nouns from the following verbs.

Achieve, create, employ, equip, fill, heat, join, produce, supply, weld.

Level B

I. While reading the text “Welding processes” pay attention to the following word groups and a) read them aloud; b) translate them into Russian; c) speak about branches where we can find the usage of welding.

Types of structures, motor industry, a basic process, according to the sources of heat and pressure, a metallic electrode, a chemically inert gas, by coating the electrode with flux, however, in many fields of sheet metal, automatic machines.

II. Define what parts of speech are the following words.

Heat, combination, the most common, machinery, include, portable, generate, widely, shielded, granular.

Level C

I. While reading the text “Welding processes” pay attention to the following words and a) read these words correctly; b) put them in the alphabetic order; c) answer to the question: what is welding?

При чтении текста “Сварочные процессы” обратите внимание на следующие слова и а) прочитайте эти слова правильно; b) поставьте их в алфавитном порядке; c) ответьте на вопрос: что такое сварка?

Pressure, manufacture, air, source, classified, methods, result, current, dioxide, automatic.

II. Make your own possible combinations of words (phrases) using the words, given above.

Составьте собственные словосочетания (фразы), используя слова, данные выше.

Reading