Turbine o & m Services / Plant O & M

Line boring is essentially enlarging a hole that has already been cast, making the centerlines of two or more bores collinear.

Collinear bores appear in several large machine parts such as engine blocks, gearboxes, presses and turbines. Precision is important in these machines, which is why line boring is commonly used to repair worn bores and their neighbors.

If bores in machining parts are not collinear, it can introduce misalignment, vibration, and even malfunction in a system. Oftentimes a machine will simply not work if even a small amount of misalignment is introduced. This is what makes this type of repair so common.

An important fact to note is that in-line boring, rotary welding, grooving, spigot machining and facing operations can all be carried out with only one setup.