|
Recommendations on Selection of Polishing Media
|
|
Requirements for workpiece processing
|
Option of media for polishing |
|
Precision
|
Major application |
|
Grain |
|
Materials |
|
|
Regular
|
Removing burrs, oxides and for rough polishing |
The polishing shows fine with the density of the abrasive at 70#~100# |
Silicon carbide media |
|
|
|
|
|
|
|
Corundum media |
|
|
|
|
|
|
|
|
|
|
Higher
|
Removing burrs, oxides and |
The density of the abrasive is |
Corundum media |
|
|
for rough or mid polishing |
between 150#~W63 |
Ceramics media |
|
highest
|
Precision polishing or surface |
The polishing shows fine with |
High-Alumina |
|
|
finishing |
|
|
the density of the abrasive |
Porcelain media |
|
|
|
|
|
within W63 |
3P shapes |
|
|
|
for soft metal such as |
|
Plastic media |
|
|
aluminum, zinc or copper parts |
|
High-Alumina |
|
|
for mid or precision polishing |
|
Porcelain media |
|
|
or surface finishing |
|
|
|
|
Principles of option
|
1.For precision processing the media with small grains should be chosen and for rough processing the media with bigger grains should be used. |
|
2.The media should not be over big when used for processing large workpieces while the media should not be too small for processing large workpieces.
|
|
3.The hardness of the media should be decided according to the efficiency of processing and polishing consumption.
|
|
4.For processing the workpieces with holes or troughs, the media should be 1.5 times large than the holes or troughs while the small media should be 1/3 smaller than the holes or troughs .
|
|
5.The proportion of the media and workpieces should be 2:1~5:1 and be adjusted according to rough or precision processing.
|
