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Практика перекладу.doc
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  1. Choose the correct answer:

  1. Smart materials change when

A the weather changes; B something affects them; C the light is switched on.

  1. Plastic threads are used for

A sewing; B stitching; C knitting.

  1. Climbing ropes with liquid crystals change colour to

A warn you; B amuse you; C make you heavy.

  1. Complete the following sentences with words from the box:

alloys, react, environment, original, implant, compressed, expand, imagination.

  1. An ________ is something medical put inside the body, e.g. a heart valve.

  2. You need a good ________ to think of new and interesting ideas.

  3. The ________ is the first or earliest.

  4. ________ are materials made from mixing two metals.

  5. To ________ means to become bigger.

  6. To ________ is to change because something else happens.

  7. The ________ is everything around a person or thing.

  8. To be ________ means to be made smaller.

  1. Work with your partner. Choose one of the smart materials in the text. Think of five interesting ways it could be used. Compare your ideas with other students.

AUTOMOTIVE MATERIALS

Materials are a fast-changing aspect for automotive engineers. Concept vehicles displayed demonstrate that new uses of plastics, composites, aluminum and other non-conventional materials are to be a part of future automobiles and light trucks. The engineer of the next generation must know the capability of a wide range of materials and the latest production processes for these materials.

By most accounts, aluminum is the most recently discovered commonly used metal that exists only in combination with other materials such as silicates and oxides. It has been produced commercially only since 1854. By contrast, the Iron Age, characterized by smelting of iron and its use in industry, began before 1000 B.C.

Considering its relatively recent entrance into not only the automotive industry but the metal industry as well; aluminum has made great strides in grabbing a respectable amount of the automotive spotlight from steel. Between 1991 and 1999 the use of automotive aluminum doubled and is expected to double again in the nearest future.

Audi 2 is claimed to be the world’s first aluminum car to be signed off for volume production. Its space frame is composed of 60% panels, 22% cast elements and 18% profiles. Audi’s A2 is aerodynamically efficient for a small car and uses the company’s aluminum space frame technology.

Among engineering alloys, titanium possesses the strength, density and modulus to use it in automotive applications. Various titanium alloys are suitable for making springs and exhaust system components. The cold spring winding and cold setting (blocking) are basically the same for titanium springs as for steel. But there are not as many turns required for titanium springs as steel springs. Since the density of titanium is about half that of steel, it can perform the same task as steel springs on most applications while weighing 60 – 70% less.

Unlike steel springs, titanium springs do not require protective coatings. A primary mechanical engineering property considered in the design of steel suspension springs is corrosion fatigue strength.