Qhov twg ntawm lub workpiece yog shear rog qhia?
Qhov twg ntawm lub workpiece yog shear rog qhia?

Video: Qhov twg ntawm lub workpiece yog shear rog qhia?

Video: Qhov twg ntawm lub workpiece yog shear rog qhia?
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Shear Thaj chaw

Secondary txiav yuav siv qhov chaw ntawm qhov sib txuas ntawm cov nti thiab qhov chaw ntawm cov nplej. Qhov no interface yog feem ntau xoob lub npe hu ua 'kev sib txhuam ntsej muag' ntawm cov cuab yeej txiav. Tertiary txiav yuav siv qhov chaw ntawm lub interface ntawm lub khoom ua haujlwm thiab cov nplej, uas yog, hauv qab thiab ntawm ob sab ntawm cov nplej.

Yog li ntawd, shearing kaum yog dab tsi?

Hauv orthogonal txiav, shear lub kaum sab xis yog lub kaum sab xis nruab nrab ntawm (a) txiav dav hlau thiab txiav ceev. (b) txiav dav hlau thiab lub dav hlau rake. (c) txiav dav hlau thiab ntsug kev taw qhia. (d) txiav dav hlau thiab cov kev taw qhia ntawm elongation ntawm crystals nyob rau hauv lub nti.

Kuj Paub, dab tsi ua rau shear quab yuam? Shearing rog yog unaligned zog thawb ib feem ntawm lub cev nyob rau hauv ib qho kev taw qhia, thiab ib feem ntawm lub cev nyob rau hauv opposite direction. Xav tias ib qho thaiv yog loaded los ntawm ob zog ua yeeb yam nyob rau hauv opposite lus qhia, lub liab txheej yuav yog lub dav hlau uas yuav nqa lub zog shear.

Tsis tas li ntawd, qhov qis shear dav hlau lub kaum sab xis cuam tshuam li cas rau kev tsim cov nti?

Machining of Metals: Fundamentals The shear angle yog ntawm qhov tseem ceeb hauv chip tsim . Qhov me me shear lub kaum sab xis qhov loj zog, lub zog machining, thiab lub zog xav tau. (11)) ua rau a qis shear dav hlau thiab yog li ntawd ntau strain nyob rau hauv sib sau tus nti tshaj Merchant txoj kev daws teeb meem (Eqn.

Dab tsi yog thrust quab yuam hauv hlau txiav?

Feem ntau, thrust quab yuam nyob rau hauv hlau txiav tsis muaj dab tsi tab sis radial quab yuam ua yeeb yam ntawm txiav cuab yeej Yog hais tias lub workpiece tsis rigidly kho nrog lub chuck, tej zaum yuav muaj kev vibration los yog whirling nyhuv ntawm lub workpiece. Yog li nws tsim ntau lub siab los yog kub ntawm lub txiav cuab yeej thiab cuab yeej hnav tsim.

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