- •Кафедра іноземних мов
- •Кафедра іноземних мов
- •Unit 1 (Total Score – 76 points) working sheet metal
- •Working Sheet Metal (Score – 6 points)
- •(Total Score – 76 points) unit 2 (Total Score – 71 points) rivets and riveting
- •I. Read and memorize the following words: (Score – 41 points)
- •Rivets and Riveting
- •I I. Match the words in a with the definition in b (Score – 4 points)
- •Unit 3 (Total Score – 64 points) forging processes ( I )
- •Forging Processes (I)
- •Unit 4 (Total Score – 67 points) forging processes ( II )
- •I. Read and memoraze the following words: (Score – 31 points)
- •Forging Processes (II) (Score – 6 points)
- •Beaten Metal work (Score – 6 points)
- •III. Match the words in a with the definition in b (Score – 3 points)
- •Part II. Texts for reading
- •The Importance of Forging in Machine Building
- •Uniт 2 (Total Score – 18 points
- •Classification of Steels
- •Unit 3 (Total Score – 14 points)
- •Unit 4 (Total Score – 16 points)
- •Unit 5 (Total Score – 15 points)
- •Unit 6 (Total Score – 36 points)
- •Safety Engineering in Forge Furnace Operation
- •Unit7 (Total Score – 21 points)
- •Heating by Electric Current
- •Unit8 (Total Score – 17 points)
- •Drop-Forging Methods
- •Uniт 9 (Total Score – 15 points)
- •The Drop-Forging Technology
- •(Total Score – 15 points) unit 10 (Total Score – 30 points)
- •Forging Non-Ferrous Metals and Their Alloys
- •Unit 11
- •1) Для чого поковки із сталі підвержені тепловій обробці;
- •2) Що відбувається з поковкой під час охолодження;
- •3) Назвіть методи охолодження поковок. Cooling Forgings
III. Match the words in a with the definition in b (Score – 3 points)
A |
B |
|
process allows the shaping of deep articles as a result of the blows made with the raising mallet or the raising hammer |
|
process used to form a shallow tray or dish with a flat rim. |
|
process used to form shallow trays and dishes by stretching the metal with blows from a mallet or hammer |
IV. Complete the sentences: (Score – 10 points)
To facilitate the shaping process the metal should be .…
The metal will become work-hardened from…
Copper is annealed by ….
The copper is thoroughly washed, scoured with …
To prepare the metal for beating the shape of blank is ….
Any scratches on the surface of the metal should …
The shaping process will depend on …
There are … main beating methods…
The sinking process is used to ….
The raising process allows ….
(Total Score – 110 points)
Part II. Texts for reading
UNIT 1 (Total Score – 18 points)
I. Прочитайте текст і скажіть, чим пояснити широке використання поковок. (Score – 6 points)
The Importance of Forging in Machine Building
All machines are built up of parts made of different materials and by various manufacturing processes. Some parts are cast from metals some are forged, while others are produced by machining on different kinds of machine tools. Castings and forgings have to be machined before they acquire their proper shape, exact dimensions and surface finish.
Forged parts, whether they are to be machined or not, are called forgings. Forging processes are extremely important in the machine-building, industry. No machine, whether simple or complicated, can be built without the use of forgings.
Hammer forging and stamping is particularly widespread in the tractor, automobile, agricultural machinery, ship-building, locomotive building and other industries. For instance, in the railway car building industry up to 70 per cent of all the parts which go to make a car are forgings.
Not only parts of machines, but also many tools are manufactured by forging. The widespread use of forgings is explained by the fact that forging improves the quality of steel, which becomes stronger after forging. For this reason, machine parts which are subjected to heavy duty are generally made of forgings.
Moreover, the time required for the manufacture of a part or a tool is very often reduced by forging, much less steel is consumed in its production and, consequently, the cost of any given part is reduced. For instance, during the production of a crankshaft weighing 17 kilograms from a bar of rolled steel, up to 31.5 kilograms are lost as chips in machining.
When a crankshaft of the same weight is manufactured by the forging process, only 13.7kg of steel are lost in chips - i.e. the loss is 36.6 per cent less. The enormous importance of forging operations is shown by the fact that nearly every machine shop has a forge division, and every machine-building plant - a forge and stamping shop.
П. Дайте відповіді на наступні питання (Score – 3 points)
What do we call forgings?
By what manufacturing processes are the parts of machines produced?
When do we use the hammer forging and stamping?
III. Підберіть заголовок до кожного абзацу тексту та коротко передайте їхній зміст. (Score – 10 points)
(Total Score – 18 points)