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Academic literature on the topic 'Geometry of the angle of inclination of the pressing (cutting) surface of the tool'
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Journal articles on the topic "Geometry of the angle of inclination of the pressing (cutting) surface of the tool"
1
V.I., Chernyshev, and Chigirinsky V.V. "OPTIMUM SHARPENING ANGLE FOR DRILLING TOOLS." ИННОВАЦИОННЫЕ НАУЧНЫЕ ИССЛЕДОВАНИЯ 2023. 2-1(26) (February 19, 2023): 36–49. https://doi.org/10.5281/zenodo.7654918.
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The article discusses a method for increasing the efficiency of rock cutting processes by mechanical means by optimizing the angles of inclination, sharpening of the drilling tool. Drilling tool fixtures and mechanisms used for drilling holes and wells. Drilling machines is a complex of drilling equipment or structures, units and devices intended for drilling holes and wells. The article investigates the influence of the geometry of the angle of inclination of the pressing (cutting) surface of the tool on penetration into the rock. Efficiency is determined by a decrease in the resistance to the penetration of tool blades into the rock. At present, the efficiency of penetration of the drilling tool is ensured by the rotational and shock-rotational forces of the drilling mechanism acting on the drilling tool.
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Duc, Pham Minh, Le Hieu Giang, Mai Duc Dai, and Do Tien Sy. "An experimental study on the effect of tool geometry on tool wear and surface roughness in hard turning." Advances in Mechanical Engineering 12, no. 9 (2020): 168781402095988. http://dx.doi.org/10.1177/1687814020959885.
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The main purpose of this study is to investigate the influence of tool geometry (cutting edge angle, rake angle, and inclination angle) and to optimize tool wear and surface roughness in hard turning of AISI 1055 (52HRC) hardened steel by using TiN coated mixed ceramic inserts. The results show that the inclination angle is the major factor affecting the tool wear and the surface roughness in hard turning. With the increase in negative rake and inclination angles, the tool wear decreases, and the surface roughness increases. However, the surface roughness will decrease when the inclination angle increases to overpass a certain limit. This is a new and significant point in the research of the hard turning process. From this result, the large negative inclination angle (λ = −10°) should be applied to reduce the surface roughness and the tool wear simultaneously. With the optimal cutting tool angles in the research, the hard machining process is improved remarkably with decreases of surface roughness and tool wear 8.3% and 41.3%, respectively in comparison with the standard tool angles. And the proposed tool-post design approach brings an effective method to change the tool insert angles using standard tool-holders to improve hard or other difficult-to-cut materials turning quality.
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Minh Duc, Pham, Le Hieu Giang, and Van Thuc Nguyen. "Analyzing Cutting Temperature in Hard-Turning Technique with Standard Inserts Through Both Simulation and Experimental Investigations." Applied Sciences 15, no. 2 (2025): 983. https://doi.org/10.3390/app15020983.
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The cutting temperature in hard turning is extremely high, which reduces tool life, lowers machined-surface quality, and affects dimensional control. However, hard turning differs greatly from conventional turning in that the cutting process mainly happens at the tool-nose radius due to the extremely shallow depth of the cut. This paper provides a comprehensive and systematic analysis of this issue based on an evaluation of tool geometry in hard turning via finite element analysis (FEA) simulations and experiments. The effect of tool angles on cutting temperature in hard turning is analyzed. The impacts of cutting-edge angle, rake angle, inclination angle, and average local rake angle on the cutting temperature are investigated via central composite design (CCD). The simulated results and the empirically measured cutting temperature exhibit comparable patterns, with a minor 2% difference. Increasing the cutting-edge angle, negative rake angle and negative inclination angle enhances the local negative rake angles of the cutting-edge elements at the tool-nose radius involved in the cutting process. Notably, the most important component influencing cutting temperature in hard turning is the inclination angle, as opposed to normal turning, where the rake angle dominates the heat generation. Following this is the cutting-edge angle and the rake angle, which each contribute 40.75%, 32.39%, and 7.03%. These findings could enhance the application of the hard-turning technique by improving tool life and surface quality by focusing on optimizing the inclination angle.
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Erzin, O. A., S. A. Vasin, and A. S. Klentak. "Analysis of changes in angular coordinates of cutting tools when conducting technological operations under different cutting conditions." iPolytech Journal 29, no. 1 (2025): 22–32. https://doi.org/10.21285/1814-3520-2025-1-22-32.
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This study aims to optimize cutting conditions by controlling the working angles of cutting tools when machining shaped surfaces and changing operating parameters of the cutting process for technological reasons. The study object includes cutting conditions for machining shaped surfaces, their influence on the operating parameters of the cutting process, the working angles of cutting tools (rake angle and lead angle), and cutting edge inclination. When developing mathematical models, we used methods of the theory of cutting, analytical mechanics, and thermodynamics. Static and kinematic geometry analysis of a blade in a cutting tool showed that changes in the angular coordinates of the front surface of a blade require the introduction of controlled rotation axes when conducting technological operations under different cutting conditions. These axes should control the main blade angles, i.e., lead angle, rake angle, and cutting edge inclination. With more than 85% of the tool penetration, the working angles considerably change even when its installation errors are relatively small. It is proposed to introduce controlled rotation axes of the front surface of a blade in a cutting tool by its main angles, i.e., lead angle, rake angle, and cutting edge inclination. It is shown that working angles considerably change even when its installation errors are relatively small. The study revealed that these angles constructively limit the regulation range of the rake angle of a cutting tool due to the impermissible reduction of the back relief angle; these angles should be taken into account when calculating the power characteristics of the cutting process. Thus, in order to solve the problem of stabilizing the working angles of cutting tools, new methods and technologies should be developed, which would make it possible to control kinematic parameters in the cutting process more accurately. It is important to take into account the influence of various factors such as workpiece material, cutting tool type, and cutting conditions.
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Vyhovskyi, Heorhii, Nataliia Balytska, Mykola Plysak, and Valentyn Otamanskyi. "Influence of oblique geometry of cutting inserts of finishing face mills on cutting forces." Scientific journal of the Ternopil national technical university 108, no. 4 (2022): 54–63. http://dx.doi.org/10.33108/visnyk_tntu2022.04.054.
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The feasibility of using face milling for the final formation of the parts surface layer is confirmed by a large number of scientific works. At the same time, there are significant advantages of technological processes using face mills for oblique cutting, equipped with superhard materials, with a spiral-stepped arrangement of cutting inserts. This work is devoted to the study of the influence of the inclination angle of the oblique face mill cutting edge on the cutting forces when processing the workpiece flat surface made of gray cast iron and carbon tool steel using the Deform-3D program. The influence of the cutting edge inclination in the range from 0 to -45º on the smoothness of penetration of the face mill inserts into the workpiece is discussed.
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Qin, Yu Xia, Ji Hong Jia, Zhi Wei, Mei Lin Gu, Tong Hui Li, and Yu Tao Wang. "Ball End Milling of Glass with Inclined Cutter." Applied Mechanics and Materials 33 (October 2010): 195–99. http://dx.doi.org/10.4028/www.scientific.net/amm.33.195.
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This study deals with the effect of tool–surface inclination on cutting forces in ball end milling .Since glass undergoes almost no elastic deformation, the shape of the cutter in glass machining has a larger influence on surface finish than that of metal machining. Model of geometry and tilt tool milling process is established. A double helix micro-flute ball end mill made of cemented carbide is used in the groove milling tests with radius 0.5mm at a helix angle of 30°. The rotational axis of the tool is inclined to improve the surface finish. The cutting processes are modeled, and 3-direction cutting forces are measured via three groups of experiments to show the effect of the tool inclination on the machined surface. Several micro grooves, then, are machined with the crack-free surfaces to prove efficiency and surface quality in the milling process.
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Matras, Andrzej, and Wojciech Zębala. "Optimization of Cutting Data and Tool Inclination Angles During Hard Milling with CBN Tools, Based on Force Predictions and Surface Roughness Measurements." Materials 13, no. 5 (2020): 1109. http://dx.doi.org/10.3390/ma13051109.
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This work deals with technological considerations required to optimize the cutting data and tool path pattern for finishing the milling of free-form surfaces made of steel in a hardened state. In terms of technological considerations, factors such as feed rate, workpiece geometry, tool inclination angles (lead and tilt angles) and surface roughness are taken into account. The proposed method is based on calculations of the cutting force components and surface roughness measurements. A case study presented in the paper is based on the AISI H13 steel, with hardness 50 HRC and milling with a cubic boron nitride (CBN) tool. The results of the research showed that by modifications of the feed value based on the currently machined cross-sectional area, it is possible to control the cutting force components and surface roughness. During the process optimization, the 9% and 15% increase in the machining process efficiency and the required surface roughness were obtained according to the tool inclination angle and feed rate optimization procedure, respectively.
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Abbasi, Sarwar Ali, Ping Fa Feng, Yuan Ma, X. C. Cai, Ding Wen Yu, and Zhi Jun Wu. "Finite Element Deformation Analysis of Long Thin Cantilever Shape Parts in High Speed Ball End Milling of Titanium Alloy Ti-6Al-4V with PCD Tools at Various Tool Inclination Angles." Key Engineering Materials 693 (May 2016): 1038–45. http://dx.doi.org/10.4028/www.scientific.net/kem.693.1038.
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In this study the influence of tool inclination angle on deformation of thin wall cantilever shape part has been analyzed using finite element numerical simulations. Polycrystalline diamond, PCD tool has been chosen as a tool material in this study because PCD tool has given better results in terms of surface roughness, tool life and productivity in end milling of titanium alloy Ti-6Al-4V. Firstly, in this study, the effect of tool inclination angle on tool contact geometry, cutting speed and cutting forces has been discussed. Then, finite element numerical simulations (FEM) have been carried out in AdvantEdge® for the prediction of cutting forces with PCD tool at four different tilt angles viz. 70°, 75°, 80° and 85° and the results have been compared to the coated carbide tool. Then the maximum magnitude of the forces which occurred in tangential direction (FY) were input in the Abaqus® software as a load acting on the thin long cantilever part and deformation results were analyzed. Results show that PCD tool due to its high hardness, strength and better wear resistance produce lower cutting forces at all angles studied and at an angle near the perpendicular to the surface being machined both tools have lower values of the deformation. The FEM simulation results match well with the theoretical study as theoretical analysis also shows that at angles nearer to perpendicular to the surface being machined, the tool will have lower effective cutting speed & forces and hence proved as the key to achieving better accuracies for long thin wall parts.
9
Vukelic, D., K. Simunovic, Z. Kanovic, et al. "Modelling surface roughness in finish turning as a function of cutting tool geometry using the response surface method, Gaussian process regression and decision tree regression." Advances in Production Engineering & Management 17, no. 3 (2022): 367–80. http://dx.doi.org/10.14743/apem2022.3.442.
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In this study, the modelling of arithmetical mean roughness after turning of C45 steel was performed. Four parameters of cutting tool geometry were varied, i.e.: corner radius r, approach angle κ, rake angle γ and inclination angle λ. After turning, the arithmetical mean roughness Ra was measured. The obtained values of Ra ranged from 0.13 μm to 4.39 μm. The results of the experiments showed that surface roughness improves with increasing corner radius, increasing approach angle, increasing rake angle, and decreasing inclination angle. Based on the experimental results, models were developed to predict the distribution of the arithmetical mean roughness using the response surface method (RSM), Gaussian process regression with two kernel functions, the sequential exponential function (GPR-SE) and Mattern (GPR-Mat), and decision tree regression (DTR). The maximum percentage errors of the developed models were 3.898 %, 1.192 %, 1.364 %, and 0.960 % for DTR, GPR-SE, GPR-Mat, and RSM, respectively. In the worst case, the maximum absolute errors were 0.106 μm, 0.017 μm, 0.019 μm, and 0.011 μm for DTR, GPR-SE, GPR-Mat, and RSM, respectively. The results and the obtained errors show that the developed models can be successfully used for surface roughness prediction.
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Pervaiz, Salman, Sathish Kannan, Dehong Huo, and Ramulu Mamidala. "Ecofriendly inclined drilling of carbon fiber-reinforced polymers (CFRP)." International Journal of Advanced Manufacturing Technology 111, no. 7-8 (2020): 2127–53. http://dx.doi.org/10.1007/s00170-020-06203-y.
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Abstract Key composite made aerostructures such as fuselage inner walls, flap support fairings, empennage ribs, and the vertical fin ribs are comprised of non-vertical inclined and radial holes that join with other key metallic and non-metallic structures. Carbon fiber reinforced plastics (CFRP) are also used in the aerospace, automotive, marine, and sports-related applications due to their superior properties such as high strength to weight ratio, better fatigue, and high stiffness. CFRP drilling operation is different than the homogenous materials as the cutting-edge interacts with fiber and matrix simultaneously. Flank face of the tool rubs on the workpiece material and develops high frictional contact due to the elastic recovery of broken fibers. Lubrication during CFRP cutting can reduce the friction involved at tool-workpiece interface to enhance cutting performance. Dry cutting, cryogenic machining, and minimum quantity lubrication (MQL)-based strategies are termed as ecofriendly cooling/lubrication methods when machining high performance materials. The abrasive nature of carbon fiber is responsible of producing cutting forces which leads to different types of imperfections such as delamination, uncut fiber, fiber breakout, and fiber pullout. The integrity of CFRP drilled hole especially at the entry and exit of the hole plays a significant role towards the overall service life. The presented paper aims to characterize the interrelationships between hole inclination, lubrication/cooling methods, tool coating, and drill geometry with inclined hole bore surface quality and integrity during drilling of CFRP laminates. In dry cutting, thrust forces were found 2.38 times higher in the 30° inclination when compared with the reference 90° conventional inclination angle. Compressed air provided lowest increase (1.46 times) in the thrust forces for 30° inclination.
Conference papers on the topic "Geometry of the angle of inclination of the pressing (cutting) surface of the tool"
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Chiou, Richard Y., and Bing Zhao. "Analytical Convolution Model of Cutting Forces in 3-D Ball End Milling." In ASME 2001 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/imece2001/med-23306.
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Abstract This paper presents an analytical convolution model of dynamic cutting forces in ball end milling of 3-D plane surfaces. The model takes into account the instantaneous slope on a sculptured surface to establish the chip geometry in cutting force calculation algorithm. A three-dimensional model of cutting forces in ball end milling is presented in terms of material properties, cutting parameters, machining configuration, and tool/work geometry. Based on the relationship of the local cutting force, chip load and engaged boundary, the total cutting force model is established via the angle domain convolution integration of the local forces in the feed, cross feed, axial direction, and inclination angle. The convolution integral leads to a periodic function of cutting forces in the angle domain and an explicit expression of the dynamic cutting force components in the frequency domain. Following the theoretical analysis, experimental study is discussed to illustrate the implementation procedure for force identification, and frequency domain data are presented to verify the analytical results.