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  2. Bench grinder - Wikipedia

    en.wikipedia.org/wiki/Bench_grinder

    Rotating abrasive wheels on a bench grinder. 8 in (200 mm) wire brush mounted to bench grinder (tool rest in foreground). A bench grinder is a benchtop type of grinding machine used to drive abrasive wheels. A pedestal grinder is a similar or larger version of grinder that is mounted on a pedestal, which may be bolted to the floor or may sit on ...

  3. Spark testing - Wikipedia

    en.wikipedia.org/wiki/Spark_testing

    A bench grinder is usually used to create the sparks, but sometimes this is not convenient, so a portable grinder is used. In either case, the grinding wheel must have adequate surface velocity, at least 23 m/s (4500 surface feet per minute (sfpm)), but should be between 38 and 58 m/s (7500–11,500 sfpm).

  4. Center gauge - Wikipedia

    en.wikipedia.org/wiki/Center_gauge

    In the image, the gauge on the left is called a fishtail gauge or center gauge, and the one on the right is another style of center gauge. [ 2 ] These gauges are most commonly used when hand-grinding threading tool bits on a bench grinder , although they may be used with tool and cutter grinders .

  5. Grinding machine - Wikipedia

    en.wikipedia.org/wiki/Grinding_machine

    Its uses include shaping tool bits or various tools that need to be made or repaired. Bench grinders are manually operated. Cylindrical grinder, which includes both the types that use centers and the centerless types. A cylindrical grinder may have multiple grinding wheels. The work piece is rotated and fed past the wheel(s) to form a cylinder.

  6. Machine tool - Wikipedia

    en.wikipedia.org/wiki/Machine_tool

    It is a power-driven metal cutting machine which assists in managing the needed relative motion between cutting tool and the job that changes the size and shape of the job material. [1] The precise definition of the term machine tool varies among users, as discussed below. While all machine tools are "machines that help people to make things ...

  7. Grinding (abrasive cutting) - Wikipedia

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

    A man grinding on metal using an angle grinder, causing a lot of sparks. Grinding is a type of abrasive machining process which uses a grinding wheel as cutting tool. A wide variety of machines are used for grinding, best classified as portable or stationary: Portable power tools such as angle grinders, die grinders and cut-off saws

  8. Tool and die maker - Wikipedia

    en.wikipedia.org/wiki/Tool_and_die_maker

    Working from engineering drawings developed by the toolmaker, engineers or technologists, tool makers lay out the design on the raw material (usually metal), then cut it to size and shape using manually controlled machine tools (such as lathes, milling machines, grinding machines, and jig grinders), power tools (such as die grinders and rotary tools), and hand tools (such as files and honing ...

  9. Metalworking - Wikipedia

    en.wikipedia.org/wiki/Metalworking

    The simplest grinder is a bench grinder or a hand-held angle grinder, for deburring parts or cutting metal with a zip-disc. Grinders have increased in size and complexity with advances in time and technology. From the old days of a manual toolroom grinder sharpening endmills for a production shop, to today's 30000 RPM CNC auto-loading ...

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