There are generally the following estimation methods:

1. According to cutting time:

Tungsten Carbide Inserts Manufacturer recommends cutting line speed with a CNC tool life of 15 minutes. In actual use, generally take 75% of the value recommended by Tungsten Carbide Inserts Manufacturer, and the CNC tool life at this time is about 60 minutes.

The number of workpieces that can be machined by one blade can be estimated as follows: N=(19100XVXf)/(DXh)

where:

N: tool life, number of workable workpieces, unit: piece; V: cutting line speed selected by the tool, unit: m/min; f: feed rate during processing, unit: mm/rev; D: workpiece diameter of the workpiece to be processed , unit: mm; h: processing length, mm

2. In terms of cutting distance:

The cutting distance refers to the total length of the distance traveled by the tool from the beginning to the failure, assuming a cutting edge continuously cuts at a certain speed on a very large workpiece, which is called the cutting distance life. It is represented by L.

The number of workpieces that can be machined by one blade can be estimated as follows: N=(318300XLXf)/(DXh)

In the formula: N: tool life, the number of workable workpieces, unit: piece; L: expected life of cutting distance, unit: km; f: feed during processing, unit: mm/rev; D: diameter of the workpiece to be machined , unit: mm; h: processing length, mm

3. Based on experience value:

Experienced practitioners have accumulated rich experience in the service life of some commonly used materials and commonly used CNC tools in machining a certain type of specific material workpiece, and can directly estimate the service life of the tool.

For example, a coated carbide drill with a diameter between Ф25~Ф30, the drilling length is about 20~30 meters in total when processing ordinary carbon steel. When processing cast iron, the total length is generally 80~100 meters.

The three estimation methods mentioned above are only rough estimations under normal circumstances. Whether it is calculated by cutting time or by cutting distance, it is more conservative. Generally, Tungsten Carbide Inserts Manufacturer does not provide these estimation methods, the calculation method of CNC tools is calculated in the designated laboratory environment and is not instructive.

Estimates based on empirical values ​​have considerable limitations and do not necessarily have universal commonality, and can only be roughly estimated under basically the same conditions. The above are several methods for estimating the service life of tungsten carbide CNC inserts. The main measurement environment is the laboratory. These are only estimated data and need to be judged according to the actual situation.