АМ Пассивный залог
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Every mechanical workshop is equipped with machine tools. They are the main source for the manufacture of component parts of all machines and mechanical devices. There are about 500 kinds of machine tools. Some perform a single operation, such as drilling. Others, called machining centers, carry out several kinds of tasks. These numerous machine tool types fall into two categories. The first group is called “metal-cutting”, the second – “metal-forming”. The machine tools of this group remove some material from the workpiece and they are much stronger than the workpiece itself. The examples of metal-cutting machines are lathes and drill presses.
- What is mechanical shop equipped with?
- How many kinds of machine tools are there?
- What operations do they perform?
- Why are machining centers called so?
- What machine tools can be called metal-cutting?