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  2. Rake angle - Wikipedia

    en.wikipedia.org/wiki/Rake_angle

    Negative rake: A tool has a negative rake angle when the face of the cutting tool slopes away from the cutting edge at outer side. Positive rake angles generally: Make the tool more sharp and pointed. This reduces the strength of the tool, as the small included angle in the tip may cause it to chip away. Reduce cutting forces and power ...

  3. End mill - Wikipedia

    en.wikipedia.org/wiki/End_mill

    There are variations of these tool types as well. There are four critical angles of each cutting tool: end cutting edge angle, axial relief angle, radial relief angle, and radial rake angle. Depending on the material being milled, and what task should be performed, different tool types and geometry may be used.

  4. Machining - Wikipedia

    en.wikipedia.org/wiki/Machining

    This angle between the work and flank surfaces is called the relief angle. There are two basic types of cutting tools: Single point tool; and; Multiple-cutting-edge tool; A single-point tool has one cutting edge for turning, boring, and planing. During machining, the device's point penetrates below the work part's original work surface.

  5. Tool bit - Wikipedia

    en.wikipedia.org/wiki/Tool_bit

    Minimum angles which do the job required are advisable because the tool gets weaker as the edge gets keener due to the lessening support behind the edge and the reduced ability to absorb heat generated by cutting. The rake angles on the top of the tool need not be precise in order to cut but to cut efficiently there will be an optimum angle for ...

  6. Countersink - Wikipedia

    en.wikipedia.org/wiki/Countersink

    This clearance is referred to as cutting relief. These tools are best used as ... Countersink cutters are manufactured with six common angles, which are 60°, 82 ...

  7. Milling cutter - Wikipedia

    en.wikipedia.org/wiki/Milling_cutter

    Milling cutters are cutting tools typically used in milling machines or machining centres to perform milling operations (and occasionally in other machine tools).They remove material by their movement within the machine (e.g., a ball nose mill) or directly from the cutter's shape (e.g., a form tool such as a hobbing cutter).

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