What is the difference between boring and turning?

What is the difference between boring and turning?

• Admin
• 2024/8/12

Boring is generally a process used for hole processing. This process is relatively common in CNC machining, and turning is also a relatively common machining process. Today Jessie is here to talk to you: What is the difference between boring and turning? And what are the characteristics of boring?

What is the difference between boring and turning?

Different concepts

Boring is an inner diameter cutting process that uses tools to expand holes or other circular contours. Turning is lathe processing. Lathe processing mainly uses turning tools to turn rotating workpieces.

Different sizes

Boring is the use of a rotating single-edged boring tool to expand the prefabricated hole on the workpiece to a certain size. Turning is a cutting process in which the turning tool moves in a straight line or a curve in a plane.

Use different

When boring, the workpiece is installed on the machine tool table or the machine fixture, the boring tool is clamped on the boring bar (also can be integrated with the boring bar), and the spindle is driven to rotate. When the boring die is used, the boring bar and the spindle are floatingly connected, and the machining accuracy depends on the accuracy of the boring die; when the boring die is not used, the boring bar is rigidly connected to the spindle, and the machining accuracy depends on the accuracy of the machine tool.

Turning uses different turning tools or other tools on the lathe to process various rotating surfaces, such as inner and outer cylindrical surfaces, inner and outer conical surfaces, threads, grooves, end surfaces and forming surfaces, etc. The processing accuracy can reach IT8 to IT7, and the surface roughness The value of Ra is 1.6～0.8. Turning is commonly used to process parts with a single axis, such as straight shafts, general discs, and sleeve parts.

What are the characteristics of boring?

The tool structure is simple, and the radial size can be adjusted, and holes with different diameters can be machined with one tool.

It can correct the axis skew and position error of the original hole.

Because the boring machine has many forms of motion, the workpiece is placed on the worktable, which can conveniently and accurately adjust the relative position of the processed hole and the tool, thus ensuring the accuracy of the mutual position of the processed hole and other surfaces.

The quality of boring mainly depends on the accuracy of the machine tool and the technical level of the workers, so the technical requirements of the operator are relatively high.

Compared with reaming, single-edged boring cutters have poor rigidity and use a smaller cutting amount, so the productivity is lower and it is not easy to ensure stable machining accuracy.

It is not suitable for processing slender holes.

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