Boring bit are the tooling systems that are used by boring machines. In a wider definition, boring tools are cutting tools such as braces, bits, gimlets, and other cutting tools that manufacturers can use for different chisels for boring jobs. Boring tools are often installed onto the boring machines rather than manual process, since boring tools are often used to process boring duties by the installed boring machineries or other milling and boring integrated machine tools.
The machine tools that do boring duties are called boring machines, which are the machineries with the machining process utilize spinning tools to bore materials by enlarging a hole rather than drilling process.
The hole has already been drilled by means of a single-point cutting tool, such as in boring a gun barrel or an engine cylinder with boring tools under the control of workers, or the control system may be of NC, or a computer numerical control system. Today, this kind of machines is often controlled by the CNC system instead and the precision level is controlled within a relatively higher tolerance values. Boring methods involving boring burrs could be done on different directions which are based on the different tracks as axis installed on the box in box frames. They are installed on the moving tracks of the machine base body. For the use of boring tools, horizontal boring machines are the most commonly seen machinery that is designed with the machining process utilizes spinning tools to bore work piece materials by enlarging a hole that has already been done by means of not boring tools but other cutting measures such as drilling tools.
Some drilling machines manufacturers and milling machine suppliers also design their drilling centers or milling centers with boring functionality now in order to keep up with the faster cycle time requirement under the horizontal arrangement. Moreover, many boring machines are now also equipped with other metal working machining capacities rather than just doing one type of works, so that onsite operators can do more than one job on the same machines rather than moving the work pieces from one working table to another, squandering a lot of precious working hours and other expenses. There are many boring machines with special boring tools that are designed with milling functionalities.
In most cases, boring functionality does not work alone, and vertical boring and milling machines are usually milling based machine tools that are designed with vertical align structures of both spindles and working table, hence the boring tools will be connected vertically. The same principle also goes to integrated boring and drilling machines.
These types of vertical machine tools is highly developed and widely applied capital goods that can deal with many kinds of mill tasks all at one stop if the milling machine is equipped with supportive accessories such as automatic tool changer, tool magazine, automatic pellet changer, and a variety of rotary tables as working platform. At the very beginning, vertical boring and milling machine is developed from conventional milling machines with additional boring capacity that aims to deal with further finishing processes only as an added value of the milling machines. Since then, the development of this specific type of machine tools goes well in the industry, and after that, machine centers are widely applied in all kinds of industries, contributing a wide range of industrial achievements due to the great competence it carries and the corresponding agile versatility it has. Therefore, vertical type boring and milling is recognized as important in the manufacturing sites and production lines in the world industry.
Besides the milling based mill bore integration, there are also multi tasking boring machines that are equipped with many different boring burrs stored in the chain type tool magazines that are always ready to be recalled by the automatic tool changing equipment whenever it is needed.
Most of these machineries are designed as horizontal and the boring burr is presented and placed at the middle of the Y axis installed on the column frame. The reason why the boring heads of those boring burrs are often installed on the column is because the column structure can provide with a steady working force that is able to resist the vibrations caused by the boring process, which often leads to the negative working effects to the work pieces when the goals are precision boring tasks. With the column’s support, the whole process can be much smoother than the non-column models and the CNC controlling can also modify the little deviations.
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