After cutting slices cut several times soft, what is the reason

First, look at what materials you cut, you cut followed depends on the thickness of the material is usually the case after cutting slicing Jidao softened reasons:
The thickness of the material being cut, large cutting discs while lifting area, resulting in adverse heat;
The material being cut itself a low melting point, partial combustion during the cutting process, such as cutting wood, as this type is not suitable for cutting wheels operations;
Cutting-chip low hardness, poor quality, after cutting wear, resulting in direct friction between the cutting plate and the material being cut, a lot of heat, cutting slices soften.