Carbide End Mill Sets

Machine tools are powered mechanical devices that are generally used to manufacture metal components of machines by selectively cutting and removing metal. Depending on whom you ask, the creation of machine tools occurred when the direct human involvement was removed from the process of cutting, shaping, or stamping process required in creating the various types of tools. An example of this theory is the lathe machine tool. In 1751, Jacques de Vaucanson mounted the cutting instrument on a mechanically adjustable head, removing the process from the hands of the operator. However, many historians will argue that machine tools did not come about until after the development of the steam engine and the Industrial Revolution.

Today, they are powered by electricity and can be operated manually, or under automatic control. The early machines had flywheels that stabilize their motion as well as an intricate system of levers, and gears that controlled the machine as well as the piece that were being produced.

Numerical control or NC machines were developed after World War II. These machines used a series of numbers punched onto paper tape or cards to control their motion. Then by the 1960s, computers were gradually added to the machines to allow for more flexibility in the process. These new computerized machines were then know as computer numerical control machines, or CNC for short. With the development of the NC and CNC machines, more pieces that are complex could be produced. The reason for this is that these machines could precisely repeat sequences over and over.

It wasn’t long before these machines drastically changed the cutting and shaping of tools being used. An example of this change is the drill machine, which because of computerization can contain a magazine loaded with a variety is sizes of drill bits used to produce various size holes. In the past, the machinist would have to either manually change out the bit or completely relocate the piece being worked on to another station in order to perform the different operations. Both methods took time, thus reduced productivity.

Once the NC and CNC proved to increase production, the next step was to combine various machine tools together with each being controlled by a single computer. These combined machine tools were then known as machine centers, and like their predecessors, have dramatically changed the way parts are created. Today, highly complex machine parts can be finished in a matter of minutes instead of the hours that it used to take.

No related posts.

Comments are closed.