Model of slice-push cutting forces of stacked thin material

Deibel, Karl-Robert; Lämmlein, Sarah; Wegener, Konrad

doi:10.1016/j.jmatprotec.2013.10.009

Cited by 7 publications

(3 citation statements)

References 4 publications

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“…В этой ситуации дальнейшее совершенствование измельчительно-режущего оборудования требует более тщательной научной проработки и теоретического анализа именно на данном этапе эволюции измельчительной техники [18,21,23].…”

Section: состояние теории и практики совершенствования измельчительно...unclassified

Improving grinding and cutting equipment: theory and practice (dynamics of development). Statistical analysis

Пеленко¹,

Korotkova²,

Zlobin³

et al. 2023

P&FPE

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The article solves the problem of assessing the preference and sequence of stages of application of priority methods for improving grinding and cutting equipment depending on the quantitative dynamics for the appearance of theoretical works characterized by analytical mechanisms of description, on the one hand, and interspersed with publications of heuristic works using the theory of solving inventive tasks, on the other. We statistically studied the change in publication activity in terms of publishing scientific papers on improving the grinding and cutting technology and the intensity of heuristic inventive activity in this information field. As a result, the provisions are substantiated and stated, from which it logically follows the need for timely activation of the processes of improving screw grinding equipment by analytical or heuristic methods, with a focus on the cyclicity and phasing of the productivity of these methods. For this purpose, a generalized structural design and technological scheme of the grinding-cutting system has been developed. The main features, geometric parameters and physical and mechanical characteristics of the components are determined. It is shown that the task of identifying priority analytical or heuristic step-by-step methods of assessing directions for improving the parameters of grinding and cutting equipment is one of the most important and logically complete system elements in the theory and practice of optimal synthesis of screw grinders. It seems that the proposed concept is applicable to any branch of technology. For auger grinding and cutting equipment, on the basis of the above methodology, another priority task was formulated, which consists in an analytical description of the distribution law of the blade sharpening angle along the length of the cutting edge, taking into account the phenomenon of its kinematic transformation.

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Section: состояние теории и практики совершенствования измельчительно...unclassified

Improving grinding and cutting equipment: theory and practice (dynamics of development). Statistical analysis

Пеленко¹,

Korotkova²,

Zlobin³

et al. 2023

P&FPE

View full text Add to dashboard Cite

show abstract

“…Atkins (2006) proposed theoretical concepts and determined the optimal parameters that influence the cutting process of the cutting equipment [ 3 ]. Yet, in other research developed empirical models of the cutting process based on the influence of frictional forces and the asymmetry profile of the cutting body [ 4 ]. The works of other authors focused on the processes involved in the cutting and grinding of meat in tops and analyzed the effects of the sharpening angles of the working bodies on the cutting forces [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Increasing the Efficiency of Food Material Cutting during Inclined and Shear Movements of Knife

et al. 2021

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Mathematical models for predicting the resistance forces that are developed during the inclined and sliding cutting of food materials have been developed. The dependence of the actual cutting angle on the angle of inclination and sliding speed of the cutting edge at various sharpening angles have been investigated. For the inclined cutting mode, the dependence of the useful resistance force on the cutting speed has been determined at various angles of inclination of the cutting edge and designed sharpening angles. For the sliding cutting mode, the dependence of the useful resistance force on the feeding speed has been demonstrated at various sliding speed values and designed knife sharpening angles. The dependence of the transformed dimensionless sharpness of the knife on the angle of inclination of the cutting edge and the sliding speed has been established for different constructional sharpness values of the knife. The results of the study indicate that the useful resistance force is significantly reduced during the inclined and sliding cutting processes when compared with the normal cutting process, and a change in the pattern of fiber destruction, which significantly increases the cutting efficiency of cutting tools, is obtained.

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“…Some protective fabrics may be subjected to various forms of cutting, slashing or stabbing. This is the case of industrial gloves that can be pierced by sharp tools or body protective armour fabrics [1–3] that can be stabbed during terrorist assaults. Many other applications, such as military, security, and industrial applications require protective clothing exhibiting high cut or slash resistance.…”

Section: Introductionmentioning

confidence: 99%

Cutting resistance of flexible armour using multiple layers of triaxial kevlar fabric

Messiry

El-Tarfawy

2020

Journal of Industrial Textiles

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The textiles capable of cutting resistance found applications in the industrial and military areas to construct flexible lightweight soft body armors. In the present work, a theoretical model to understand the mechanism of fabric cut resistance in a different direction for weft-knitted, triaxial, and multiple layers structures. An experimental study of cutting resistance force was done on weft-knitted fabric with Kevlar 29 triaxial fabrics in multiple layers structure to support derived mathematical model for the effect of multiple layers structure on their cutting force. The study examines specific cut resistance of the structure from four layers of Kevlar triaxial fabrics covered with knitted fabric on both sides. The angle of cutting force varied from 0°, 60°, and 90° with respect to the yarn inclination. Results show that the cutting force of the multilayer structure is linearly proportional to the number of Kevlar triaxial fabrics layers. The specific cut resistance value of the structure from four layers of Kevlar triaxial fabrics, covered with knitted fabric on both sides, reached 544, 435, and 326 (N/g/cm2) for cutting directions: angled 60°, vertical, and horizontal, respectively. In this work, the comparison between the triaxial fabric of high areal density and multiple layers of triaxial fabric with resultant same areal density indicates that a better specific cutting force was achieved in the first case. Furthermore, it investigated the relationship between triaxial surface density, the direction of cutting, and the number of triaxial fabric layers and discussed the optimum specific properties of the different structures.

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Model of slice-push cutting forces of stacked thin material

Cited by 7 publications

References 4 publications

Improving grinding and cutting equipment: theory and practice (dynamics of development). Statistical analysis

Improving grinding and cutting equipment: theory and practice (dynamics of development). Statistical analysis

Increasing the Efficiency of Food Material Cutting during Inclined and Shear Movements of Knife

Cutting resistance of flexible armour using multiple layers of triaxial kevlar fabric

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