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The grinding machine is difficult to grind material, which is a material with poor grinding workability during grinding.
Difficult to grind materials and difficult-to-cut materials have many common features and different characteristics. Among the hard-to-grind materials, some are better for cutting, such as copper, aluminum and alloys in non-ferrous metals. In general hardened steel, it is difficult to cut and it is easier to grind.
Grinding machine hard-to-grind materials can be distinguished by the following methods:
First, according to the metal elements contained in the material
The material contains elements such as chromium (Cr) , nickel (1Ni) , tungsten (W) , molybdenum (Mo) , manganese (Mn) , titanium (Ti) , aluminum (A1) , cobalt (Co) , vanadium (V) , The strength, toughness, plasticity and heat resistance of the material are improved, and the thermal conductivity of the material is lowered, making grinding more difficult.
Second, according to the grinding ratio to distinguish
In most cases, the difference in material grinding performance is distinguished by the grinding ratio G (the ratio of the volume of the ground material to the volume of the grinding wheel ) . Grinding ratio is large, material grinding is easy,
The opposite is hard. In the grinding process, the grinding wheel wears quickly, the grinding force is large, the grinding temperature is high, the vibration is easy to occur, and the production efficiency is low.
Third, according to the physical and mechanical properties of the material to distinguish
The toughness and plasticity of the workpiece material are high, and the hardness and thermal conductivity are low. The wear debris easily adheres to the surface of the grinding wheel, blocking the pores of the grinding wheel, and the grinding wheel loses the grinding ability, resulting in an increase in the grinding force and an increase in the grinding temperature. Such as grinding high temperature alloy, titanium alloy, stainless steel, high vanadium high speed steel, pure iron, pure copper, aluminum and so on.
Fourth, according to the surface quality to distinguish
Some workpiece materials are prone to burns and cracks and surface roughness during grinding, and it is difficult to meet surface quality requirements. This type of material is also difficult to grind.
Attachment 1 , Reference: Tianming Grinding Machine Technical Support Center   Http://
Attachment 2 , cited website: China Grinding Machine Network   Http://
Attachment 3 , English information: China grinding machine supplier   Http://
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