Tungsten carbide boring cutter can be classified into single-blade boring cutter, double-blade boring cutter and multi-blade boring cutter according to its cutting blade number; into-hole boring cutter, blind hole boring cutter, ladder hole boring cutter and end face boring cutter according to its machining surface; into solid type, fabricated type and adjustable type according to its structure.

 

The two types of tungsten carbide boring cutters most commonly seen will be introduced in the following:

I. Single-blade boring cutter

The cutter bit structure of single-blade boring cutters is similar to that of turning tools. The cutter bit is installed in the cutter bar and is fixed by bolt according to the bore diameter of bores to be processed by hand. Single-blade boring cutters, with simple structure, have wide applications and can be used for rough, semi-finish and finish processing. However, the size of bore diameter being bored has to be ensured by adjusting the length of overhanging by hand. Therefore, it is to some extent troublesome. In addition, there is only one main cutting edge involved during boring, so it has relatively low efficiency, and is thus usually used in unit production.

II. Double-blade boring cutter

It has two symmetrical cutting edges and the radial force can cancel each other out during boring. The bore diameter size and precision of workpieces are ensured by the radial dimension of tungsten carbide boring cutters.

 

 

 

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