The Boring Operation – Some Purposes Explained

by | Nov 5, 2015 | Machine

Boring operations can be immensely helpful for increasing a hole’s inside diameter for a variety of applications, such as when creating an engine cylinder or gun barrel. Boring, also known as internal turning, involves the use of a drill to create the original hole – or the hole may be a cored hole located in a casting. A boring operation has a few important purposes.

A boring operation is designed to straighten an original cast or drilled hole. It is common for a drill, particularly a longer one, to wander off-center. In this situation, the drill will cut an angle due to the eccentric forces being applied to the drill. Cutting at an angle is also possible if a drill has not been sharpened evenly or if the material you are working with has some hard spots occasionally. A cored hole in a casting is almost never totally straight. A boring tool that is move straight will help to rectify these issues.

Size and Finish
Another valuable aspect of boring operations is that they help to bring a hole to a correct finish and size. A reamer or drill cannot be used if the hole size you desire is not standard. Fortunately, with a boring tool, you can work to various diameters and get the finish you need by simply adjusting the nose radius, speed and feed of your tool. Boring bars that are micro adjustable can be easily used to bore precision holes.

Center Point
With boring, you can also make a hole concentric with its outside diameter, meaning there is a common center. This can only be done within the accuracy limits of your holding device or chuck. For the highest level of concentricity, the inside diameter is bored, and the outside diameter is turned in a single setup, where the work is not moved between operations.

The machine shop you choose for boring operation services can perform the task using machines such as mills, computer numerical control (CNC) lathes and vertical machining centers (VMCs). The right company can conveniently bore the particular part you require whether you have a large, small, cast, round or square part.

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