Завдання № 4. Утворiть речення, використовуючи записанi нижче слова:

6 балiв

1. Amount, a, material, of, planer, removes, a, tremendous, one, pass, and, still, a, of, high, degree, in, accuracy, maintain.

2. Modern, large, planers, molds, used, plastic, and, repair, stamping, dies, and, to, maintain, injection, are.

3. Have, not, the, metalworking, yet, and, disappeared, world, planers, shapers, from, entirely.

4. A, type, metalworking, is, planer, is, a, of, shaper, machine-tool, analogous, to, a, that.

Завдання № 5.

Дайте відповіді на питання за текстом: 5 балiв

1. What are machine-tools used for?

2. What is planer?

3. How are most machine-tools driven nowadays?

4. What were planers and shapers used generally for?

5. What additional uses of planers can you name?

Завдання № 6. Перекладіть запропонованi речення, звертаючи особливу увагу на рiзнi значення видiленого слова:

6 балiв

1. The term “heat” has more than one MEANING.

2. This term MEANING “radiant heat” may be employed with regard to the action of rays upon an absorbing surface.

3. The degree of concentration of the heat in a body MEANS the quantity of heat per unit of mass.

4. Our sensations are not reliable MEANS of determining the temperature of a body.

Завдання № 7.

Напишіть та запам’ятайте переклад наступних слів та словосполучень:

10 балiв

Machine-tools; step-cone head; plain bearings; cross-section area; fitting; tolerance; faceplate; thrust washers; bed; gear teeth; to cut threads; face plate; turret lathe; automatic screw machine; upright drilling machine; spindle; to mount smth; milling nachines; rotating cutters; gear drive; jack screw; spacing washers; locking nut; shaper; to lubricate with oil; tap; planer; slotting machine; rack-and-pinion drive; dog clutches.

Загальна максимальна рейтингова оцінка: 52 бали

ВАРІАНТ № 8.

Завдання № 1. Прочитайте та перекладіть письмово текст:

15 балів

A MILLING MACHINE

Milling is the complex shaping of metal (or possibly other materials) parts, by removing unneeded material to form the final shape. It is generally done on a milling machine, a power-driven machine that in its basic form is comprised of a milling cutter that rotates about the spindle axis (like a drill), and a worktable that can move in multiple directions (usually three dimensions [x,y,z axis] relative to the workpiece, whereas a drill can only move in one dimension [z axis] while cutting). The motion across the surface of the workpiece is usually accomplished by moving the table on which the workpiece is mounted, in the x and y directions. Milling machines may be operated manually or under computer numerical control (CNC), and can perform a vast number of complex operations, such as slot cutting, planing, drilling and threading, rabbeting, routing, etc. Two common types of millers are the horizontal miller and vertical miller.

The pieces produced are usually complex 3D objects that are converted into x, y, and z coordinates that are then fed into the CNC machine and allow it to complete the tasks required. The milling machine can produce most parts in 3D, but some require the objects to be rotated around the x, y, or z coordinate axis (depending on the need). Tolerances are usually in the tenths of an inch, depending on the specific machine. In order to keep both the bit and material cool, a high temperature coolant is used. In most cases the coolant is sprayed from a hose directly onto the bit and material. This coolant can either be machine or user controlled, once again depending on the machine. Materials that can be milled range from aluminum to stainless steel and most everything in between. Each material requires a different speed on the milling bit and changes the amount of material that can be milled off at a time. Harder materials are usually slower speeds with small amounts of removed material. Softer materials vary, but usually are milled with a high bit speed.

The use of a milling machine adds costs that are factored into the manufacturing process. Each time the machine is used coolant is also used, which must be periodically added in order to prevent breaking bits. A milling bit must also be changed as needed in order to prevent damage to the material. Time is the biggest factor for costs. Complex parts can require hours to complete, while very simple parts take only minutes. This in turn varies the production time as well, as each part will require different amounts of time.

The bits are traveling at high speeds and removing pieces of usually scalding hot metal. The advantage of having a CNC milling machine is that it cuts out the machine operator. This in turn prevents many potential accidents.

Завдання № 2.

Віднайдіть у тексті та випишіть 10 інтернаціоналізмів, 10 термінів і

термінологічних словосполучень, дайте їх переклад українською. 5 балiв

Завдання № 3.

Заповніть пропуски у реченнях відповідними словами, обраними серед

поданих нижче: 5 балiв

Harder, milling, coolant, simple, each.

1. ... material changes the amount of material that can be milled off at a time.

2. … must be periodically added in order to prevent breaking bits.

3. … machines may be operated manually or under computer numerical control.

4. … materials are usually slower speeds with small amounts of removed material

5. Very … parts take only minutes to complete.

Завдання № 4.

Утворiть речення, використовуючи записанi нижче слова:

6 балiв

1. Vast, machines, operations, can, slot, cutting, perform, and, a, milling, of, complex, such, drilling, threading, etc, as, number.

2. Materials, with, milled, bit, usually, a, high, softer, speed, are.

3. On, each, requires, a, different, speed, on, material, the, milling, bit.

4. From, the, coolant, onto, is, material, sprayed, the, a, directly, hose, bit, and.

Завдання № 5.

Дайте відповіді на питання за текстом: 5 балiв

1. What is milling?

2. What is the motion across the surface of the workpiece usually accomplished by?

3. What is the advantage of having a CNC milling machine?

4. What is the reason of using a coolant?

5. What are two common types of millers?

Завдання № 6.

Перекладіть запропонованi речення, звертаючи особливу увагу на рiзнi значення видiленого слова:

6 балiв

1. In order to perform this task the scientists LEFT their country for a long period of time.

2. To move the decimal point to the LEFT or the right is the simplest operation possible.

3. There were some vacant seats LEFT.

4. The composing of the letter was LEFT over him.

Завдання № 7.

Напишіть та запам’ятайте переклад наступних слів та словосполучень:

10 балiв

Machine-tools; step-cone head; plain bearings; cross-section area; fitting; tolerance; faceplate; thrust washers; bed; gear teeth; to cut threads; face plate; turret lathe; automatic screw machine; upright drilling machine; spindle; to mount smth; milling nachines; rotating cutters; gear drive; jack screw; spacing washers; locking nut; shaper; to lubricate with oil; tap; planer; slotting machine; rack-and-pinion drive; dog clutches.

Загальна максимальна рейтингова оцінка: 52 бали

ВАРІАНТ № 9.