Grinding
Grinding is a type of surface treatment that aims to reduce unevenness and make all surfaces of the workpiece uniform.
In the process we get:
- rubbing down the peaks of irregularities;
- obtaining the intended roughness;
- blunting and rounding the edges;
- removing oxide deposits, corrosion and grease.
In the grinding process using abrasive media, the removal of surface irregularities is achieved by grinding off the peaks of irregularities. Grinding is supported by aqueous solutions of the compounds containing, among others, degreasing agents and corrosion inhibitors..
Grinding operations are performed in both round and trough vibratory machines, as well as in disc finishing machines. The only limitation of the use of disc finishing machines for grinding processes is the mass and size of the processed item.
All of the above, both machines and media, require careful selection depending on the material from which the parts to be processed are made and what effect we want to achieve on the surface.
Ceramic chips are mainly used for processing steel, cast steel or cast iron. When processing brass, zinc alloy castings (ZnAl) or aluminium alloy castings, better quality results are achieved using abrasive chips with resin bonds.
Grinding is usually one of the stages preceding polishing the surface.