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1. Are the following statements about the text true or false? Why?

  1. The scientific and technological progress requires new technologies.

  2. The machine modules are appropriate for “unmanned” industries.

  3. Slack work is being carried out on new robots.

  4. Modern engineering thinking has created unique welding equipment.

  5. New technologies and equipment have been designed for two branches of engineering.

  6. Automatic design systems allow for an optimizing of the solutions in design and technology when new machines are still in the drawing stage.

2. Answer the following questions.

  1. What are two main headlines, along which the scientific and technological progress will continue in engineering?

  2. What does automation include?

  3. What robots do we need besides mere manipulators?

  4. Have any machines tracing the entire process of machining been manufactured?

  5. What has modern engineering thinking created?

  6. When are the engineers to start producing new generations of machines and equipment?

  7. What would new generations of machines and equipment allow?

  8. How can service life be extended for machines?

  9. What strengthening treatment methods have been found in recent years?

  10. Are grain harvester parts vulnerable to wear and tear?

  11. What are engineers and scientists after?

3. Speak on the topic “Trends in the Modern Machine-Building Industry”.

4. Communicative situations:

  1. What is the role of new technologies in engineering?

  2. What is the main task of the engineers and scientists developing new machines and technologies?

Unit 4 Topic: Engineering Materials Grammar: Perfect/Non-perfect

Vocabulary

Learn the following words and word combinations:

property ['prOpqti] – властивість

ferrous metal ['ferqs 'met(q)l] – чорний метал

non-ferrous metal ["nOn'ferqs 'met(q)l] – кольоровий метал

carbon ['kRb(q)n] – вуглець

cast iron ["kRst'aiqn] – чавун

steel [stJl] – сталь

alloy ['xlOi] – сплав

alloy [q'lOi] – сплавляти

chromium ['krqumiqm] – хром

corrosion [kq'rquZ(q)n] – корозія, іржа

tungsten ['tANstqn] – вольфрам

hardness ['hRdnqs] – твердість; щільність; міцність, жорсткість

aluminium ["xljqminiqm] – алюміній

copper ['kOpq] – мідь

bronze [brOnz] – бронза

brass [brRs] – латунь

plastics ['plxstiks] – пластмаса

ceramics [sq'rxmiks] – кераміка

oxygen ['OksiGqn] – кисень

hydrogen ['haidrqG(q)n] – водень

nitrogen ['naitriG(q)n] – азот

thermoplastic ["TWmq'plxstik] – термопласт

thermoset ["TWmq'set] – термореактивна пластмаса

resin ['rezin] – смола

compound ['kPmpaund] – суміш; сполука; композит

Reading

Read and translate the text.

Engineering Materials

Engineers have to know the best and most economical materials to use. Engineers must also understand the properties of these materials and how they can be worked.

There are two kinds of materials used in engineering – metals and non-metals. We can divide metals into ferrous and non-ferrous. The former contain iron and the latter do not contain iron. Cast iron and steel, which are both alloys (or mixtures of iron and carbon) are the two most important ferrous metals. Steel contains a smaller proportion of carbon than cast iron. Certain elements can improve the properties of steel and are therefore added to it. For example, chromium may be included to resist corrosion and tungsten to increase hardness. Aluminium, copper, and the alloys (bronze and brass) are common non-ferrous metals.

Plastics and ceramics are non-metals; however, plastics may be machined like metals.

Plastics are a large and varied group of materials consisting of combinations of carbon and oxygen, hydrogen, nitrogen, and other organic and inorganic elements. Plastics are classified into two types – thermoplastics and thermosets. Thermoplastics can be shaped and reshaped by heat and pressure but thermosets cannot be reshaped because they undergo chemical changes as they harden. Many plastics did indeed evolve as replacements for natural products such as rubber, ivory, silk or wool, which became unavailable or on short supply. Today’s engineering resins and compounds serve in the most demanding environments. Their toughness, lightness, strength, and corrosion resistance have won many significant applications for these materials in transportation, industrial and consumer products. The engineering plastics are now challenging the domains traditionally held by metals: truly load-bearing, structural parts.

Ceramics are often employed by engineers when materials which can withstand high temperatures are needed.

Language study

1. Fill in the table with the words and word combination from the text.

Engineering materials

metals

ferrous

metals

copper

steel

thermo-plastics

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