Английский для сварщиков. Гричин С.В. - 100 стр.

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ТПУ | Томск

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100
Summary
Friction Stir Welding is a new welding method which enables two
workpieces made of aluminium to be forged using friction. The method has
characteristics which make it extremely interesting for the highly-productive
joining of straight profiles and plates. In the longer term, this method will
help to extend the use of aluminium.
After reading activity
Use the words and phrases from the list below to fill in the blanks in the
sentences:
rotating bodies, manual welding, sponsorship project, necessary expertise, in
collaboration with, frictional heat, without any negative observations, build
up data bank, sufficiently high temperature, environmentally-compatible
1. … is being replaced by automatic and semi-automatic types of welding in
many applications.
2. They could buy the new equipment only thanks to a successfully realized
… .
3. … are necessary elements of friction stir welding.
4. The new project was realized … foreign partners.
5. In order for the weld to be formed … in the welding area should be
provided.
6. After the thorough repairs the equipment had been running for 2 years … .
7. The quality control supervisors had to carry out … before putting the
welding machine into operation.
8. The experience the engineers had in welding such structures helped them
… necessary for further development of the product.
9. … resulting from rotating bodies coming into direct contact can be
removed by special coolers.
10. This new welding machine is both operator friendly and … .
Speaking
Say if the following is an advantage or disadvantage of friction stir welding:
1. A hole is left on the surface after the tool is pulled away from work piece.
2. The welding machine should be powerful and stable.
3. The joint doesn’t need special preparation.
4. Flash, fumes and ozone are not formed.

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