Е. С. Закирова, П. А. Красавин Английский язык для технических вузов


Exercise 24. Ask questions and use the words in italics in your answers. The



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Exercise 24. Ask questions and use the words in italics in your answers. The 
words in brackets will help you.
1. 
A modern CNC lathe
can do milling (what cutting machine). 2. Lathes 
can produce 
different shapes of workpieces
(what). 3. The turning operations 
have been developed 
through the years 
(when). 4. Turning usually uses 
simple 
single-point
cutting tools
(what kinds of cutting tools). 5. 
A lot of
chip producing 
technological processes are available (how many).
Exercise 25. Read the following dialogue, sum up the information and act out a 
similar dialogue.
CUTTING MACHINE TOOLS
A.: Do you know what a cutting machine tool is?
B.: Yes, I do. A cutting tool is any tool that is used to remove material from the 
workpiece.
A.: I hope you do know that cutting may be performed by single-point or 
multipoint tools. Can you name operations which may be performed by 
them?
B.: Single-point tools remove material by means of one cutting edge. Mostly 
they are used in turning operations. Milling, drilling, and grinding tools 
are often multipoint tools. 
A.: You are absolutely right. I wonder which characteristics cutting machine 
tools should have to produce quality finished parts.
B.: I am sure that they should have three main characteristics: hardness, 
toughness, and wear resistance. The tools must be able to withstand the 
heat generated in the metal-cutting process.
A.: It goes without saying. Besides, cutting tools must be made of a materi-
al harder than the material which is to be cut. We should bear in mind that 
safety is considered to be the key with the cutting machines because the 
removing bits of usually hot metal are travelling at high speeds. 
B.: I fully agree with you. The advantage of having a CNC cutting machine is 
that it fully protects the machine operator.
A.: Moreover, due to CNC control, modern cutting machines have high pre-
cision of operations and allow achieving excellent results in production.
B.: It seems to me that soon everything will be done by robots.


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