- •Module I
- •METALS and METALWORKING
- •Unit 1. HISTORY OF METALWORKING
- •Iron Age. As smelting pits began to advance, mankind began to be able to produce temperatures hot enough to extract iron from ore. This iron was not very durable and bronze was still the most popular material for making weapons and tools.
- •Unit 2. MECHANICAL PROPERTIES OF METALS
- •Different types of metal casting
- •The metal casting process
- •Module II
- •Unit 3. CASTING (Литье)
- •Starting up
- •Text: Metal Сasting
- •Unit 4. FORGING (Ковка)
- •Forging Processes: Hot Forging vs. Cold Forging
- •With cold heading, the metal is not heated. It is formed near room temperature, which makes it better suited for working with softer metals. The main benefits of cold forging include faster production rates and increased interchangeability.
- •Common Forging Methods
- •What is the best metal for forging?
- •Unit 5. TECHNIQUES OF ART METALWORKING
- •Module III
- •Unit 6. CNC Machining of Artistic Products
- •After-reading tasks:
- •Exercise 6.1. Are the statements True or False? Specify your answers using the text.
- •1. Nowadays, modern technologies provide opportunities for mass production of art objects.
- •3. Copper and bronze are the examples of the most common materials for CNC machined sculptural objects because of their high corrosion resistance.
- •4. Brittle metals are hard to process with CNC machines because they can chatter.
- •6. Having been machined, the stepped structure of an art piece will be finished with manual tools.
- •7. CNC machines can be programmed to make 2D or 3D designs.
- •8. Only simple design patters are applicable for engravings with CNC machines.
- •Exercise 6.2. Put the words in the correct order to make sentences:
- •1. their artists said to leave of something are themselves The in art
- •2. are materials CNC for machining The not to cut because their of hardness brittleness easy and
- •3. Precious to jewelry can be CNC metals machined also produce
- •4. head machine the transmits computer CNC data to cutting
- •Professional Language Development
- •Exercise 6.3. Complete the table with the missing relative words.
- •Exercise 6.4. Translate into Russian:
- •Exercise 6.5. Translate the sentences from Russian into English:
- •2. Обработка металлов на станках с ЧПУ позволяет создавать сложные изделия произвольной формы.
- •3. Скульптуры и другие предметы искусства зачастую выставляются на открытом воздухе. Поэтому, основным требованием к материалам является их устойчивость к коррозии.
- •4. Хрупкость материалов, обрабатываемых на станках с ЧПУ, может приводить к их крошению. Поэтому, при обработке используются специальные инструменты и охлаждающая жидкость.
- •5. Для обработки поверхности свободной формы используются разные фрезы.
- •6. Фреза для гравировки помогает обработать ступенчатые формы предметов.
- •7. С помощью станков с ЧПУ можно наносить рисунки на листы металла.
- •8. Если вы дизайнер или художник, станки с ЧПУ могут помочь в вашем творчестве.
- •Exercise 6.6. Read the text and fill in gaps with the words from the list below.
- •How to turn your idea into an art piece without machining skills.
- •Speaking
- •1. Pair Work: work with a partner. Discuss what new or interesting facts you have found out about CNC machining of metals in the text. Compare your ideas with other pairs or groups.
- •Grammar Focus
- •Unit 7. The Latest Technologies in Metalworking
- •Starting Up
- •Study the Vocabulary:
- •Exercise 7.1. While reading, fill in the table, where applicable:
- •How Technology is Changing Metalworking Businesses
- •3-D Printing
- •High-Speed Machining (HSM)
- •Artificial Intelligence
- •1. Work in pairs. Make a dialog about the future of artistic metalwork. You may discuss the following issues:
- •2. Summarize the text How Technology is Changing Metalworking Businesses. Use the tips on writing a summary at the end of the book.
- •Appendix
- •Tips on Summary Writing
- •References
shape. This was an important advancement that allowed mankind to enter the Bronze Age.
Smelting allowed for the creation of copper. However, copper was soft and not a big improvement over the stone materials. Mankind actually came upon a truly superior material when they combined copper with tin to create bronze. The Bronze Age spread rapidly and spanned between Southwest Asia and Eurasia by 2000 BC.
Iron Age. As smelting pits began to advance, mankind began to be able to produce temperatures hot enough to extract iron from ore. This iron was not very durable and bronze was still the most popular material for making weapons and tools.
At around 1,000 BC people that lived along the Black Sea began to experiment with iron. They wanted to create weapons that were stronger than bronze. They pulled out very sturdy weapons after several rounds of firing and hammering. This process allowed the creation of wrought iron, which was hard and allowed for some of the strongest armies in the region. Ancient China created cast iron around 500 BC. The Chinese built giant furnaces to burn larger quantities of iron and wood. They then smelted this material into a liquid and then poured it into carved molds. This wrought iron was great for household cookery and statues. In 400 BC, India created the first method to turn iron into steel. They created clay receptacles to hold iron bars and bits of charcoal. They then sealed the containers and inserted them into a furnace. The Indians then blasted the furnace with air from bellows causing the wrought iron to melt and absorb the carbon from the charcoal. The ingots of the first steel were born while cooling. The iron age had begun, and humanity would never be the same.
After-reading tasks:
Exercise 1.2. Are the listed below statements True, False, or Not Mentioned? Specify your answer using the text.
1.The Iron Age is the longest period in the history of the mankind.
2.Native metals are the metals which can be found in nature in their pure
state.
3.Metal working started just in the Bronze Age.
4.Gold and silver were the first metals found by men.
5.The discovery of the native metals led to development of metallurgy.
6.Bronze is the combination of two native metals.
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7.Bronze is a soft metal which allows to cast it easily.
8.The cast iron was first produced in China more than 2500 years ago.
9.The Chinese were the first to turn cast iron into steel.
10.Iron is the most popular material for tools and weapons.
Exercise 1.3. Answer the questions:
1.What metals are native? What is the role of these metals in history?
2.What made gold and silver so popular metals for all times?
3.Is copper a common material on our planet? Why is copper considered to give a rise to the Bronze Age?
4.Is bronze a native metal? Why/why not? What are its properties?
5.What technology made it possible to produce bronze?
6.Why did bronze spread so fast and widely?
7.What technology allowed the transition from the Bronze Age to the Iron Age?
8.What materials were made of iron ores? What are the properties of the materials made of iron?
9.According to the article, what was the contribution of China to the development of metal processing?
10.The Indians developed an advanced and unique method to produce steel in 400 BC. How did it work?
Professional Language Development
Exercise 1.4. Match the names of the iron containing materials to the definitions and their applications:
Iron containing |
Definition |
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Applications |
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material |
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I iron ore |
1. a |
type |
of iron that |
is |
hard, |
a. electrical, |
automotive |
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breaks easily |
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industries; |
domestic |
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appliances, etc |
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II |
wrought iron |
2. rock or earth from |
which iron |
b. machinery, tubes, etc |
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metal |
can be obtained |
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III |
cast iron |
3. strong metal that |
can |
be |
c. gates, fences, ancient |
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shaped |
easily, |
consisting |
cookery, statues, etc |
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of iron and carbon |
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IV |
steel |
4. long thin pieces of iron formed |
d. metallurgy |
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into shapes |
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Exercise 1.5. Fill in a preposition where appropriate:
1.extraction ____ metal
2.to extract iron ____ ore
3.to pour metal _____ a mould
4.to enter ____ the Bronze Age
5.to smelt ____ the material
6.to turn iron ____ steel
7.to absorb carbon ____ charcoal
8.to seal ____ containers
Exercise 1.6. Translate the following into Russian. Make sentences of your own with the phrases:
1.to make sharp cutting edges
2.pure state in nature
3.mixed in with sediment in river beds
4.intrinsic beauty of gold
5.valuable coins
6.to harden by forging
7.sturdy weapons
8.several rounds of firing and hammering
9.giant furnaces
10.to carve moulds
Exercise 1.7. Translate the sentences into English:
1.Древние люди искали способы обработки металла, чтобы сделать себе инструменты для охоты, такие как стрелы и ножи.
2.Золото и серебро давно стали популярными благодаря тому, что они хорошо подходили для создания декоративных украшений и чеканки монет.
3.Бронза была получена в результате сплава олова с медью. Бронзу можно было отливать по различным формам и делать оружие и инструменты.
4.Люди смогли выплавлять железо из руды, когда научилисьделать это при высоких температурах.
5.Около 1000 лет назад людям удалось получить очень прочное железо в результате многократного обжига и ковки.
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6.Древний Китай – родина чугуна. Китайцы строили для этого гигантские печи, а расплавленный металл разливали по специально вырезанным формам.
7.Метод получения стали был изобретен в Индии. Для этого запечатанные глиняные сосуды с кусочками железа и древесного угля помещались в печи с очень высокой температурой горения.
8.В сосудах железо плавилось, поглощая кислород из древесного угля. Глиняные сосуды после остывания разбивали и извлекали слитки стали.
Text B: History of Artistic Metalworking Pre-reading tasks:
Work in pairs or groups. Discuss the following questions. Share your opinion with the class.
•Why was metal so popular material in the human history?
•Do you know any names of modern metal sculptors?
•What metalworking operations are you familiar with?
Study the vocabulary.
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Word |
Translation |
1. |
sacred /ˈseɪkrɪd/ |
религиозный, священный |
2. |
gilding |
позолота |
3. |
inlaying |
инкрустация |
4. |
damascening /dəˈmæsənɪŋ / |
дамаскирование; нанесение орнамента |
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из золота и серебра |
5. |
niello |
чернение |
6. |
to engrave |
гравировать, вырезать |
7. |
to solder |
паять |
8. |
fusion welding |
сварка плавлением |
9. |
wax |
воск |
10. |
virtuosity /ˌvɜːtʃuˈɒsəti/ |
артистизм, виртуозность |
11. |
sophistication |
сложность; изысканность |
12. |
embossing |
чеканка |
13. |
etching /ˈetʃɪŋ/ |
травление |
14. |
to refine |
улучшать, совершенствовать |
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The ability to work metals into objects by hammering or casting is a major technical achievement of humankind. Makers of tools and weapons, and of decorative and ritual objects, took advantage of metal’s practical aspects—durability and capacity for holding a sharp edge, for example–and were also attracted by metal’s decorative qualities. Metal’s artistic potential is in its brightness, when polished, its variety of colors, and the ease with which it may be shaped.
Artistic metalworking is traditionally associated with certain types of objects, including weapons and armor, coins and medals, jewelry, and decorative household objects, such as sculptures. Metal–usually bronze– sculptures are numbered among the most sacred and prized ancient and modern works of art.
Gold and silver are soft, easily worked and cast, brilliant, and of beautiful color. Goldand silversmiths use thin sheets of metal as their basic material.
Gold may be beaten into extremely thin sheets called leaves. When gold or silver leaf is used to decorate or cover a surface, the process is called gilding. Inlaying comprises a number of techniques, including damascening–named for the goldsmiths of Damascus, Syria, who developed the method of forcing gold threads into patterns cut in the surface of bronze, iron, or steel.
Niello is a black powdery mixture of silver, copper, and lead sulfides. It is also the name given to the process of inlaying with this substance designs engraved in silver.
Copper and bronze (a copper-tin alloy) were the metals most widely used before the introduction of iron. Bronze remains the main metal for sculptors because of its excellent casting qualities. Bronze was the leading metal for statuary for more than 4,000 years.
The addition of tin to copper increases the metal’s hardness and makes it quicker to melt and easier to control. Early metalworkers also understood soldering and fusion welding.
The technique of casting, closely associated with bronze, ranks among the major artistic and technological inventions of humankind. It allows the reproduction in metal of almost any form that can be shaped in wax.
Archaeological discoveries since 1950 have revealed bronze art whose level of technical virtuosity and artistic sophistication has rarely been equaled.
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Although of greater use than bronze technologically, iron and steel are less often used for artistic purposes. Wrought iron is widely used as architectural decoration. Cast-iron statues have been made by the Chinese for nearly 2,000 years, but artistic use of cast iron in the West has been mainly for stoves, fireplace hardware, and architectural ornament. Chiseling, embossing, and etching of iron and cut steelwork became highly refined in Europe during the 17th and 18th centuries. The development of machine tools effectively put an end to these crafts.
Modern Art Metalwork
The use of metals in architecture and household objects was given fresh life by the art nouveau movement in the late 19th century. In Germany during the 1920s the Bauhaus school revolutionized the uses of metal in furniture and building by insisting on clean, functional design suited to machine production.
Bronze figure sculpture was simplified and abstracted by Henry Moore, a British sculptor who changed from wood and stone to bronze as his preferred material after 1950. Innovations in sculptural metalwork came about through the adoption of industrial and mechanical techniques for working directly in metal rather than creating molds. The Spaniard Julio González, who collaborated on sculptures with Pablo Picasso, helped bring about this development.
After World War II the welded and wrought metalwork of David Smith and others paralleled abstract expressionism in painting. Since the 1960s there has been an increase in the amount of large-scale abstract metal sculpture being produced. Anthony Caro, a Briton, and the American Richard Serra are among the most prominent of contemporary metal sculptors.
After-reading tasks:
Exercise 1.8. Answer the questions:
1.According to the text, what properties of metals made them so popular in the early history?
2.What does the artistic potential of metal lies in?
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3.What does artistic metalworking deal with? What are the most sacred and valuable ancient and modern types of art works?
4.Why are silver and gold so popular in artistic metalworking?
5.What techniques of metal processing can be applied to gold and silver?
6.Why has bronze always been the leading metal for making statues?
7.Were iron and steel widely used for artistic purposes? Why/why not?
8.What metalworking techniques got their development in the 17th and 18th centuries?
9.How was the use of metals in life and architecture affected by different artistic styles?
10.What artists that are renowned for their prominent pieces of art in metal are mentioned in the text?
Exercise 1.9. Complete the sentences according to the text.
1. The technique of gilding involves _________. |
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A forcing gold threads into surface |
B covering surface with gold |
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C inlaying designs in silver with black powdery mixture |
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2. The technique of damascening involves _________. |
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A forcing gold threads into surface |
B covering surface with gold |
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C inlaying designs in silver with black powdery mixture |
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3. The technique of niello involves _________. |
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A forcing gold threads into surface |
B covering surface with gold |
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C inlaying designs in silver with black powdery mixture |
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4. The _________ technology allows reproducing almost any form |
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which can be done in metal. |
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A welding |
B casting |
C forging |
5. Functional design of metal items applicable for machine processing |
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was developed in _________. |
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A Britain |
B. Spain |
C. Germany |
6. The trend for mechanical work in metal directly instead of metal |
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casting started _________. |
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A at the end of the 19th century |
B at the beginning of the 20th century |
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C in the middle of the 20th century |
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Professional Language Development
Exercise 1.10. Match the words to their definitions:
1. |
gilding |
A. |
process of ornamenting a surface |
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by setting into it material of |
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different color or substance |
2. |
soldering |
B. |
cutting design into metal, putting ink on the metal, |
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and then printing it |
3. |
casting |
C. |
melting metal, usually a mixture of lead and tin, |
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to join two metal surfaces, wires, etc |
4. |
welding |
D. |
covering something with a thin layer of gold |
5. |
inlaying |
E. |
joining metals by melting their edges and |
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pressing them together when they are hot |
6. |
engraving |
F. |
pouring liquid metals |
Exercise 1.11. Translate the following into Russian.
1.to take advantage of metal’s practical aspects
2.capacity of holding a sharp edge
3.sacred and prized ancient and modern works of art
4.to comprise a number of techniques
5.to force gold threads into patterns
6.to be quicker to melt and easier to control
7.stoves, fireplace hardware, architectural ornament
8.to put an end to these crafts
9.figure sculpture was simplified
10.working directly in metal rather than creating molds
Exercise 1.12. Find the following phrases in the text. Make 8 sentences of your own with these phrases.
1.вещи бытового назначения
2.золотых дел мастер; серебряных дел мастер
3.порошковидная смесь металлов черного цвета
4.отличные литейные качества
5.сварочное железо
6.литая чугунная статуя
7.подходить для машинного производства
8.современные скульпторы по металлу
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Speaking
Prepare and give a short presentation to the class on one of the following topics:
•Early brief history of metalworking
•Main techniques of metal processing in the Stone Age (Bronze Age, Iron Age)
•Role of gold and silver (copper) in the early history of metalworking
•Main techniques of artistic metalworking
•Mostly used metals for making works of art
•Brief history of artistic metalworking
•Contemporary metal sculptors.
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