The machining process involves the removal of heterogeneities, impurities, ie. Sand, rust, scale, slag or residues of old paint or other coating. For this, a closed circuit uses abrasive material. The effect obtained is: smoothing, hardening, heating, removal of deformation or strengthening of the surface structure
Blasting
Blasting belongs to surface treatment, during the treatment the abrasive material (i.e. steel, cast iron, steel wire cut grains), is directed to the surface subjected to mechanical cleaning. Depending on the type of abrasive used and the speed at which it hits the object, the desired effect is achieved. The method is safe for the environment. The following are used for abrasive blasting: air, injector, pressure, turbine (rotor, throw wheel) equipment.
Vibratory-abrasive machining
Vibratory-abrasive mach ining (vibratory-abrasive machining) by this term is used for mechanical surface polishing, smoothing, removal of rust, and gas corrosion products. It applies to small parts, and is conducted in tumblers using abrasive or polishing material with a batch of these parts. A variation of this abrasive machining is tumbling (rotary machining, rotary-abrasive machining), in the process during the rotational movements of the drum in the mixing device, the abrasive material is interacted with the machined surface.
When not to use vibratory-abrasive machining?
The process can be used
– dry with abrasive pastes and a suitable charge (walnut shells or ground corn husks);
– wet – often with the addition of a booster fluid or aqueous abrasive suspension – using stainless steel shot, acid-resistant steel, ceramic, resin abrasive shapes or glass.
