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2. Polishing (metalworking) - Wikipedia

   en.wikipedia.org/wiki/Polishing_(metalworking)

   The condition of the material at hand determines what type of abrasive will be applied. The first stage, if the material is unfinished, starts with a rough abrasive (perhaps 60 or 80 grit) and each subsequent stage uses a finer abrasive, such as 120, 180, 220/240, 320, 400 and higher grit abrasives, until the desired finish is achieved.

3. Surface finishing - Wikipedia

   en.wikipedia.org/wiki/Surface_finishing

   Polishing lines will be soft and less reflective than a #4 architectural finish. #7 Finish. A #7 finish is produced by polishing with a 280–320 grit belt or wheel and sisal buffing with a cut and color compound. This is a semi-bright finish that will still have some polishing lines but they will be very dull.

4. Mill finish - Wikipedia

   en.wikipedia.org/wiki/Mill_finish

   Most mill finish surfaces are machined or treated with polishing, industrial etching, or some other surface finishing process before they are considered complete. The quality and characteristics of mill finish can vary widely from one mill to another, and even from one lot (set of similar parts all processed consecutively or in a short time) to ...

5. State-of-the-Art Alcoa Facility to Cut in Half Energy Used to ...

   www.aol.com/2013/05/22/state-of-the-art-alcoa...

   State-of-the-Art Alcoa Facility to Cut in Half Energy Used to Recycle Aluminum for Forged Wheels New Plant Expected to Recycle 100 Million Pounds of Aluminum Each Year CLEVELAND--(BUSINESS WIRE ...

6. Superfinishing - Wikipedia

   en.wikipedia.org/wiki/Superfinishing

   Superfinishing, also known as microfinishing [1] and short-stroke honing, is a metalworking process that improves surface finish and workpiece geometry. This is achieved by removing just the thin amorphous surface layer of fragmented or smeared metal left by the last process with an abrasive stone or tape; this layer is usually about 1 μm in magnitude.

7. Surface grinding - Wikipedia

   en.wikipedia.org/wiki/Surface_grinding

   Factors to consider in surface grinding are the material of the grinding wheel and the material of the piece being worked on. Typical workpiece materials include cast iron and mild steel. These two materials don't tend to clog the grinding wheel while being processed. Other materials are aluminum, stainless steel, brass and some plastics.