Small Polishing Machine

Small polishing machines can do a series of complicated polishing works within one smack sized compact polishing machinery. In the industry, the term polishing machine is also referred to as the buffing machine, which is used to polish soft metal materials such as copper, brass, and plastics. The two mops spin at high speed when the on switch is pressed by the users, and polish should be applied to the rotating mop before pressing the work against it.

During the process of buffing, the process involves the shining of metal, wood, or composite materials using a cloth wheel impregnated with cutting compounds or rouges. The cloth buff will hold or carry the compound, while the compound does the cutting process. The industry refers to polishing as the process, which uses the method of abrasive belt finishing for the polishing process. 


Polishing and Grinding

Polishing and grinding are two similar and intriguing ideas that usually been put together for comparison. Polishing is referred as the process that uses the method of abrasive belt finishing. While in regard to the abrasive cutting, there are a lot of processes to be introduced in the industry. A grinding machine is used to shape the outer, inner, or surface side of work pieces through the grinding mechanism. 

There are several types of grinding machine, such as center-less grinder, surface grinder, cylindrical grinder, just to name a few. The cylindrical grinder can process a variety of shapes; however, the object must have at least a central axis of rotation so that it can be spinning concentrically. This includes but is not limited to such shapes as cylindrical, but from such as cam, ellipse, crankshaft, etc. Here let’s see what is surface grinding. Surface grinding is one of the most critical key-links in the whole finishing process. After forming, cutting, and other complex processing, many work pieces would go to this step for further finishing. 

The procedure of surface grinding is used to produce a smooth finished surface on either flat or other specific surfaces. It is a widely used abrasive machining process by which a spinning wheel is covered in rough particles (grinding wheel) that cuts chips of metallic or nonmetallic substance from a work piece, rendering a flat or smooth face. Among all the grinding processes such as cylindrical, internal, center-less, the surface grinding is the one of the most general one that exists in the industry since the very early history and also, last to now among the various grinding operations. 

CNC grinding is a finishing process which utilizes a rotational abrasive wheel to smooth the surface of metallic or non-metallic materials in order to deliver a refined physical situation by removing the layer and impurities on the work piece surfaces under the control of computer numerical control mechanism that is driven by programmed processes as intended.


CNC Based Processing

These processes will attain a desired surface for functional purposes that are planned and programmed by engineers. The planning is based and assisted by computer systems. Regarding the mechanical composition, the mechanical structure of surface grinders are composed of an abrasive wheel, a work piece holding device, and a reciprocating table. During machining, the holding device would hold the material in place while it is being machined. 

The clamping mechanism can be done via two methods: one is for the ferromagnetic pieces, which are held in place by a magnetic chuck, while for the non-ferromagnetic and nonmetallic pieces, they are held in place by either vacuum or mechanical means. The clamping mechanism is crucial to the whole processing since only with the rigid positioning and clamp, can the work be done accurately. There are other factors that will lead to the result, and those factors and parameters are so important. Critical factors that affect surface grinding are the material of the grinding wheels and the material of the work pieces. 

Typically, work piece materials include aluminum, brass, steel, cast iron, and mild steel. Some of them are more stable and will not attach to the wheel during processing, while some are with different physical natures that would lead to corrosion that is not ideal for other applications.

In sum, the use of CNC computer planning of the polishing routes is the mainstream application of the programs in the grinding, polishing, and even de-burring. It is expected that with the advancement of the computer science, the works of polishing will be improved further and the job will require less manual operation in the working circumstances, which will largely improve the occupational safety concerns.

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