Find the English equivalents for the following words and word combinations
Расплавленный металл, необходимый размер, не нагретый металл, механические свойства, максимум температуры, защищать поверхности, быстрое охлаждение, осуществлять контроль, препятствовать окислению, вступать в химическую реакцию, термообработка, бомбардировка электронами, зона термического [теплового] воздействия, общая потребляемая энергия.
6. Complete the following sentences.
1. A characteristic feature of fusion welding is:
a) molten metal b) low-voltage discharge c) inert atmosphere
2. Furnace heating is usually employed in
a) friction joining b) diffusion bonding c) ultrasonic joining
3. The consumable electrode is made
a) negative b) positive c) neither
4. Total energy input in all welding processes is
a) is greater than required to produce a joint b) is smaller than required
to produce a joint c) equals to required to produce a joint
5. Reactions of most metals with the atmosphere or other nearby metals can
1) improve the properties of a welded joint b) make the properties of a
welded joint worse c) never influence the properties of a welded joint
6. The most common gas used in gas-shielded metal-arc and gas-shielded
tungsten-arc welding is
a) argon b) oxygen c) carbon dioxide
7. If not controlled, residual stress results in
a) precipitation processes in welded structures, b) freezing of the weldmetal
c) bowing or distortion of the weldment.
Say if the following sentences are true or false.
1. There is always a welding pool in solid-phase welding processes.
2. Total energy input in all welding processes is greater than needed to produce a weld.
3. Reactions of metals with the atmosphere or other nearby metals are favorable to the properties of a welded joint.
4. Fluxes and inert atmospheres play a protective role and prevent oxidation.
5. The heat-affected zone is a region with unaltered properties.
6. Residual stress is present in all welded structures.
8. Write a short report on the subjectbelow.
Function of Fluxes and Inert Atmosphere in Welding
Study the Master Chart of the Principal Welding Processes (Chart
And complete the sentences.
1. The two basic welding processes are ... .
2. The fusion processes consist of… .
3. Among these, arc welding can be accomplished…
4. Arc welding with consumable electrodes includes the following types… .
5. Carbon arc welding, atomic hydrogen welding, inert gas tungsten arc
welding refer to… .
10. Describe the classification of pressure processes. Use the verbs in bold from the previous exercise. 
Look through the text. Make a short summary of it.