- •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
Exercise 7.7. Find the equivalents to the phrases in the text:
1. технические совершенствования оказывают влияние на компании 2. создавать препятствия и трудности 3. по причине отсутствия надежных средств (возможностей) 4. быть в шаге от больших перемен в отрасли 5. минусы перевешивают плюсы 6. технология печати 3D (трехмерная) позволяет осуществлять маломасштабное производство 7. вызывать проблемы, такие как пористость, образование трещин, и т.д. 8. отвечать постоянно меняющимся потребностям покупателей 9. диверсификация производства 10. давние методы лазерной и плазменной резки 10. повышать скорость и точность производства 11. наверстывать упущенное (догонять), используя автоматизацию 12. сократить количество ошибок 13. дорогостоящие ошибки как для производителя, так и для конечного потребителя 14. способность «учиться» на своем опыте 15. способность изучать и анализировать модель 16. более эффективные методы резки металла 16. станки интегрированы с компьютерами 17. конкуренция со стороны других отраслей 18. сократить накладные расходы, не увольняя квалифицированных специалистов 19. оказаться на распутье 20. оказаться позади, отставать
Speaking
1. Work in pairs. Make a dialog about the future of artistic metalwork. You may discuss the following issues:
• Modern technologies are good/evil for artistic works.
• Machines can create art better/worse than humans.
• Human crafts can/cannot be destroyed by automated production some day.
• No artists will be needed in the future to create art. Artists can be easily replaced by technologies such as AI.
2. Summarize the text How Technology is Changing Metalworking Businesses. Use the tips on writing a summary at the end of the book.
65
Appendix
Tips on Summary Writing
How to write a summary of a text or an article The steps of writing a summary:
1.Scan the article to get the main idea and its structure.
2.Read the article 2-3 times to make sure you understand it. Pick up any terms and unfamiliar words to write them down into your dictionary.
3.Divide the article into logical parts, label each section in the margins and make a plan. Write 1-sentence summary of each part of the text.
4.Begin writing your summary with an overview of the author and the article. Then, explain briefly what the article is about why it is important.
5.Make a summary of each paragraph. Rewrite your 1-sentence summary for each part. Then, summarize the key points of each part of the article:
•key points: cite them literally
•significant points: compress and rephrase them
•minor points: omit them.
6.Write a draft of the summary. Combine all the information.
7.Make a short and balanced conclusion to the whole article.
8.Review the draft and finalize your summary.
Your summary should:
•be longer than 1/3 of the original text
•have reporting verbs (to claim, to discuss, to argue, to point out, to highlight, etc)
•be written in Present Simple or Past Simple
•be written in specific, concrete language.
Your summary should not:
•have specific examples or details such as numbers, statistics, a lot of dates, etc
•express your opinion
•use original sentences
•be wordy.
Watch the video about summarizing texts in English http://www.youtube.com/ watch?v=QJdYjNCKCj4. What additional information have you learnt from this video about writing a summary?
66
Useful phrases to summarize the text:
1. |
Introduction |
1.1 |
The title of the text is … . |
|
|
|
The article is called … . |
|
|
1.2 |
The author of the text/article/passage is … . |
|
|
|
The text/article was written by … . |
|
|
1.3 |
The text/article/passage under consideration/analysis |
|
|
|
is taken from the book/newspaper/web-site called … . |
|
|
1.4 |
The subject of the text/article/passage is … . |
|
|
|
The text/article/passage tells us about/describes/is |
|
|
|
devoted to … . |
|
|
|
The text/article/passage is about … . |
|
|
|
The text/article/passage deals with (the problem of) … . |
2. |
Text structure |
2.1 |
The text/article/passage can be divided/split into … |
|
analysis |
|
logical parts. |
|
|
|
The text/article/passage falls into … logical parts. |
|
|
2.2 |
The first/second/third part is about/describes/is |
|
|
|
devoted to/analyses/points out … . |
|
|
|
In the first/second/third part the author writes |
|
|
|
about/analyses the problem of/gives his point of view |
|
|
|
on … . |
|
|
|
Attention is concentrated on … in the |
|
|
|
first/second/third part. |
|
|
|
So, the author writes that … . |
3. |
Conclusion |
|
In conclusion, the author says … . |
|
|
|
Summing up, the author points out … . |
|
|
|
To sum up, the author emphasizes that … . |
Read the article. Do the exercises on reading comprehension. Make a summary of the text.
Development of Metalworking
Metalworking is the process of making decorative or useful objects out of metal. It can create a variety of objects, ranging from jewelry and silverware to large scale structures such as ships or bridges. There is a wide range of metalworking skills, processes, and tools.
The oldest technique of metalworking is hammering. Around 2500 BC, people learned the art of casting, or pouring molten metal into a mold. Then, in the Neolithic Period, metals like copper, silver, and gold were shaped into jewelry, and later in the Bronze Age, there were a number of talented
67
artisans who worked on ornaments, silver jewelry, sculptures, and inlays. The Bronze Age was a period when people started making bronze sculptures, and alloy brass was also produced around this time. The next major development in metalworking took place during the Iron Age, when iron was utilized for making a variety of useful tools and structures. The great advancements in metalworking in the modern age made it possible to produce different alloys and to utilize metals for industrial purposes.
In the 12th century, silver was used to be made into finely-crafted jewelry. Silversmiths started organizing guilds as a result of the enormous demand for jewelry. Exquisite silver wares and jewelry were also in great demand in Europe during the 17th and 18 century. Moreover, it was during this period that pre-Columbian America started dealing in wholesale jewelry supply of silver ornaments.
Metalworking includes hammering, drawing, spinning, and casting. Forming is a set of processes by which metal is heated and molded. Hot forging involves the deforming of metal with the help of hydraulic presses and hammer. There are several types of casting, including sand casting, shell casting, investment casting, centrifugal casting, spin casting, and die casting. Few of the decorative processes in metalworking are embossing, chasing, repoussé, enamel work, filigree, inlaying, and gilding.
Let us consider the example of silver processing. The cutting processes transform a metal into a geometric shape, which will eventually be sold as a jewelry item or ornament. Besides, the silver machining involves drilling holes and milling, where a milling machine is usually used for the purpose. Other important processes used include grinding, soldering, broaching, and marking out. Marking out or laying out refers to the transferring of a jewelry design onto a work piece. The final step of making silver jewelry is machining or manufacturing.
Metalworking is a broad term which incorporates industry, science, and metallurgy. It is also an art form and hobby for many people. It is an important practice that has brought many cultures, races, and civilizations together.
I. Are the statements true (T) or false (F)? Correct them if needed.
1.Metal is one of the ancient materials in the human history.
2.The people living about 2500 years ago had some skills of metal processing such as melting metals.
3.The first jewelries appeared in the Bronze Age.
68
4.The Iron Age is known for making tools and cultural objects of iron.
5.Production alloyed was a great achievement in the history of metal processing.
6.The main metalworking operations include hammering, drawing, embossing, chasing, etc.
7.The processing of silver undergoes a series of manual and machining operations.
8.Metalworking is applied not only to industry or science but to human leisure activities.
II. Divide the following words into three groups:
Casting, melting, jewelry, hammering, sculpture, inlay, spinning, forming, machining, coins, alloys, silverware, brass
Metals |
Metal |
processing |
Metal items |
|
operations |
|
|
|
|
|
|
69
