VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Analytical study on critical load and deformation of chip in high-pressure jet assisted machining
    Kern, Matjaž ; Dražumerič, Radovan ; Pušavec, Franci
    In machining, particularly of difficult-to-machine materials, chip-breaking with the aim to avoid entangled chips represents an important issue. In contrast to the widely used obstacle-induced chip ... breaking (e.g., chip former on the rake face of the cutting insert), the use of the high-pressure jet offers a potential for active, load-induced chip control. In this paper, the essential mechanics of the high-pressure jet assisted machining process is revealed by a robust analytical model as an elastic-plastic bending of a helical chip considering the spring-back effect. The description of the helical chip geometry and the determination of the bending moment caused by the jet are adapted to the fundamental model of chip-mechanics. The critical bending moment of the chip breakage is assessed, which could be an important step towards the determination of the critical coolant supply pressure. The model is validated by chip-in-hand radius measurements for various turning conditions over the full range of applied coolant pressure up to chip breakage.
    Vir: Journal of materials processing technology. - ISSN 0924-0136 (Vol. 316, Jul. 2023, str. 1-12)
    Vrsta gradiva - članek, sestavni del ; neleposlovje za odrasle
    Leto - 2023
    Jezik - angleški
    COBISS.SI-ID - 158995971

    Povezava(-e):

    https://www.sciencedirect.com/science/article/pii/S0924013623000894
    Repozitorij Univerze v Ljubljani – RUL
    DOI

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