On Site Line Boring

On Site Line Boring

In machining, boring is the process of enlarging a hole that has already been drilled (or cast), by means of a single-point cutting tool (or of a boring head containing several such tools), for example as in boring a gun barrel or an engine cylinder. Line boring is used to achieve greater accuracy of the diameter of a hole, and can be used to cut a tapered hole. Boring can be viewed as the internal-diameter counterpart to turning, which cuts external diameters.

There are various types of boring.

  • The boring bar may be supported on both ends (which only works if the existing hole is a through hole), or it may be supported at one end (which works for both through holes and blind holes).
  • Lineboring (line boring, line-boring) implies the former.
  • Backboring (back boring, back-boring) is the process of reaching through an existing hole and then boring on the “back” side of the workpiece (relative to the machine headstock).

Because of the limitations on tooling design imposed by the fact that the workpiece mostly surrounds the tool, boring is inherently somewhat more challenging than turning, in terms of decreased toolholding rigidity, increased clearance angle requirements (limiting the amount of support that can be given to the cutting edge), and difficulty of inspection of the resulting surface (size, form, surface roughness).

These are the reasons why boring is viewed as an area of machining practice in its own right, separate from turning, with its own tips, tricks, challenges, and body of expertise, despite the fact that they are in some ways identical.

  • The Expertise of the Team of Superior Millwright will be able to challenge any situations.
  • In House or On site line boring, we are mobile.
  • Our mobility generate a major cost saving for our customers.

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