Polishing sometimes known as finishing or buffing is the process of removing light scratches and abrasions from a surface, and creating the desired brightness of finish on that surface. It is the final stage in the surfacing process. When a material appears shiny you are actually seeing a reflection of light off the material. When a material appears dull, there are scratches or dirt preventing the light from directly reflecting off the surface. Clean the material thoroughly, and if it’s still dull then the material needs to be polished. If the material is heavily scratched, marked or scored then suitable abrasives should be used prior to polishing to remove. Determine if the material you wish to polish needs to be sanded first. A good rule of thumb is if your fingernail can catch the edge of a scratch then it will need to be sanded before it can be polished.
The following picture will tell you how to choose polishing wheel and polishing compound when polishing different material objects.read more
STEP 1 : Remove the outer guard on your bench grinder
STEP 2: Remove the Grinding stone
STEP 3: Remove the inner guard on your bench grinder
STEP 4: Fit the bench grinder spindle adapters on the shaft of the bench grinder and fix tight with the grub screw, checking…read more
How to polish aluminum to mirror finish:
Prepping the surface
Clean and degrease the item you want to polish, make sure the surface is free of dirt. If the surface of work piece is lacquered you must remove the lacquer.
If the parts are heavily scratched, marked,…read more
Rotate speed and buffing wheel pressure are two elements that must work together to produce the best finish in a safe, economical way. Proper pressure must be applied to the workpiece to produce the friction that allows the compound to buff. In tangential buffing,…read more
If you want to polishing a material, some necessary equipment and supplies are needed.
Equipment can be used for polishing include polishing/buffing machine, bench grinder, sander grinder/polisher, drill and rotary tool. The rotate speed recommended for polishing & buffing is 3,000 rpm or less.
The correct peripheral rotate speed is an important consideration in getting the right results from your buffing operation. Working at high rate heats the work surface and prevents the polishing compound working properly, while working at low speed can not get high mirror finish.
Polishing Buffing compounds are used with buffing and polishing wheels to increase the effectiveness of the wheel and to help you accomplish your tasks more quickly. The polishing buffing compounds are wax/abrasive based, they come in all different types and colors, each uniquely suited…read more