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    The Influence of Extreme Speeds and Rake Angles in Metal Cutting

    Source: Journal of Manufacturing Science and Engineering:;1963:;volume( 085 ):;issue: 001::page 49
    Author:
    W. N. Findley
    ,
    R. M. Reed
    DOI: 10.1115/1.3667587
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: A study is presented of the effect of wide variations in speed of cutting and rake angle on orthogonal cutting of several metals—mainly a lead-antimony alloy. It was observed that enormous decreases in tool forces occurred in the lead-antimony with increase in speed from 6 to 3800 fpm, and decrease in rake angle from +30° to −60°. Explanations for these variations are proposed. An unusual observation was that a transition as speed increased from continuous to discontinuous chips occurred at large negative rake angles. Possible causes of this behavior are discussed. Another unusual observation was that a steep rise in tool force occurred with increase in speed for rake angles of 0° and +30°. The rise to a peak value was followed by an equally steep decrease in tool forces. Other observations discussed include the appearance of side spikes on the chips, chip curl, lateral extrusion of chips, influence of normal stress occurring on the shear plane, and the apparent coefficient of friction.
    keyword(s): Force , Friction , Metals , Alloys , Extruding , Metal cutting , Stress , Shear (Mechanics) AND Cutting ,
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      The Influence of Extreme Speeds and Rake Angles in Metal Cutting

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/96867
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    contributor authorW. N. Findley
    contributor authorR. M. Reed
    date accessioned2017-05-08T23:15:08Z
    date available2017-05-08T23:15:08Z
    date copyrightFebruary, 1963
    date issued1963
    identifier issn1087-1357
    identifier otherJMSEFK-27468#49_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/96867
    description abstractA study is presented of the effect of wide variations in speed of cutting and rake angle on orthogonal cutting of several metals—mainly a lead-antimony alloy. It was observed that enormous decreases in tool forces occurred in the lead-antimony with increase in speed from 6 to 3800 fpm, and decrease in rake angle from +30° to −60°. Explanations for these variations are proposed. An unusual observation was that a transition as speed increased from continuous to discontinuous chips occurred at large negative rake angles. Possible causes of this behavior are discussed. Another unusual observation was that a steep rise in tool force occurred with increase in speed for rake angles of 0° and +30°. The rise to a peak value was followed by an equally steep decrease in tool forces. Other observations discussed include the appearance of side spikes on the chips, chip curl, lateral extrusion of chips, influence of normal stress occurring on the shear plane, and the apparent coefficient of friction.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleThe Influence of Extreme Speeds and Rake Angles in Metal Cutting
    typeJournal Paper
    journal volume85
    journal issue1
    journal titleJournal of Manufacturing Science and Engineering
    identifier doi10.1115/1.3667587
    journal fristpage49
    journal lastpage64
    identifier eissn1528-8935
    keywordsForce
    keywordsFriction
    keywordsMetals
    keywordsAlloys
    keywordsExtruding
    keywordsMetal cutting
    keywordsStress
    keywordsShear (Mechanics) AND Cutting
    treeJournal of Manufacturing Science and Engineering:;1963:;volume( 085 ):;issue: 001
    contenttypeFulltext
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