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  2. Electrochemical grinding - Wikipedia

    en.wikipedia.org/wiki/Electrochemical_grinding

    The abrasive particles bonded to the grinding wheel will help to electrically insulate the space between the grinding wheel and workpiece. [6] [7] An equation giving the material removal rate for an electrochemical grinding process is provided in [5] and is stated here as: MRR = GI/ρF [5]

  3. Centerless grinding - Wikipedia

    en.wikipedia.org/wiki/Centerless_grinding

    A schematic diagram of the centerless grinding process. Centerless grinding is a machining process that uses abrasive cutting to remove material from a workpiece. [1] Centerless grinding differs from centered grinding operations in that no spindle or fixture is used to locate and secure the workpiece; [2] the workpiece is secured between two rotary grinding wheels, and the speed of their ...

  4. Grinding (abrasive cutting) - Wikipedia

    en.wikipedia.org/wiki/Grinding_(abrasive_cutting)

    A grinding wheel is an expendable wheel used for various grinding and abrasive machining operations. It is generally made from a matrix of coarse abrasive particles pressed and bonded together to form a solid, circular shape; various profiles and cross-sections are available depending on the intended usage for the wheel.

  5. Material removal rate - Wikipedia

    en.wikipedia.org/wiki/Material_removal_rate

    Material removal rate (MRR) is the amount of material removed per time unit (usually per minute) when performing machining operations such as using a lathe or milling machine. The more material removed per minute, the higher the material removal rate. [1] [2] The MRR is a single number that enables you to do this. It is a direct indicator of ...

  6. List of Philippine National Railways rolling stock - Wikipedia

    en.wikipedia.org/wiki/List_of_Philippine...

    Replaced refurbished wooden 6-series cars of the MRR. Includes the 7C-00 of 1948, [ 53 ] 7C-40 of 1956, [ 54 ] and 7C-200 of 1958. [ 55 ] [ 56 ] [ 57 ] Other 7C units were used as division dormitory cars while others have been converted to baggage/power cars. 6 units are still intact as of January 2024 namely 7C 45, 105, 113, 114, 115, and 204 ...

  7. Machining - Wikipedia

    en.wikipedia.org/wiki/Machining

    CNC machine pouring coolant to keep the tool and parts from getting hot Lathe machine. Machining is a manufacturing process where a desired shape or part is created using the controlled removal of material, most often metal, from a larger piece of raw material by cutting.