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Journal articles on the topic "END- MILLING CUTTER":
1
Mokrickiy, Bori, Anna Morozova, and Vladislav Vereschagin. "MILLING EFFECTIVENESS INCREASE BY MEANS OF HARD-ALLOY COMPOUND END MILLING CUTTERS." Bulletin of Bryansk state technical university 2021, no. 6 (June 1, 2021): 4–10. http://dx.doi.org/10.30987/1999-8775-2021-6-4-10.
The investigation purpose: the effectiveness increase of hard-alloy end milling cutters at the expense of new milling cutter design development conventionally called compound milling cutters.
The problem solved during investigation: the reveal of the most efficient fields of compound milling cutter use.
The scientific novelty of the work: the formation of a new kind of hard-alloy end milling cutter design, to avoid milling cutter destruction in the place of shank end mounting in the chuck of the machine a shank end is made of structural steel and soldered with a hard-alloy cutting part of the milling cutter.
As a result of the investigation it was defined:
a) compound milling cutters compete with monolithic milling cutters in accuracy during billet production of parts at a lower cost of milling cutters;
b) a compound milling cutter with a diameter of 16 mm and a milling cutter length of 92 mm substitute successfully a monolithic milling cutter by production accuracy and ensures cost reduction of a product by 4%;
c) a compound milling cutter with a length of 220 mm as compared with a monolithic milling cutter ensures product cost reduction by 38% and applicable for general aims at engineering enterprises.
2
Yang, Shucai, Chunsheng He, and Minli Zheng. "Investigation on the stress field of milling titanium alloys with micro-textured ball-end milling cutter." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 233, no. 11 (March 6, 2019): 2160–72. http://dx.doi.org/10.1177/0954405419831491.
In the milling of titanium alloy, the distribution of milling force and its related law of change seriously affect the physical properties of workpiece materials, the stress distribution on a cutter’s rake face and the interaction between the workpiece, the cutter and the chip. This article reports on a study of the stress field distribution under the conditions of anti-friction and anti-wear when cutting titanium alloy with a micro-textured ball-end milling cutter. Milling test data were used to establish empirical models of milling force and the contact area between the cutter and the chip. Based on this, the force density function of the cutter coordinate system was obtained and the equivalent stress and displacement of the cutter were simulated and analyzed. This in turn provided the means to acquire the instantaneous stress and strain relating to the cutter at any time. Analysis of the simulation results shows that the position in which the stress and strain are concentrated on the cutter is consistent with actual processing. This confirms the accuracy of the force density function and provides the basis for further study of thermo-mechanical coupling behaviors when engaged in using micro-textured ball-end milling cutters for the cutting of titanium.
3
Zheng, Minli, Chunsheng He, and Shucai Yang. "Thermo-mechanical coupling behaviour when milling titanium alloy with micro-textured ball-end cutters." Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering 234, no. 6 (June 19, 2020): 562–75. http://dx.doi.org/10.1177/0954408920931958.
The high-speed milling of titanium alloy is a very complex nonlinear dynamic cutting process, and there are mutual coupling effects between multiple physical fields of the tool. Therefore, the thermo-mechanical coupling behavior of micro-textured ball-end milling cutters during the cutting of titanium alloy was studied in depth, combined with theoretical calculations, milling experiments and simulation analysis. First, based on the experimental data of milling titanium alloy, the stress field of the micro-textured ball-end milling cutter was solved. Then, the dimensional method was used to solve the temperature field of the micro-textured ball-end milling cutter. Finally, the thermo-mechanical coupling simulation analysis of the micro-textured ball-end milling cutter was carried out, and the stress concentration area and tool breakage area of the micro-textured ball-end milling cutter under the thermo-mechanical coupling effect are obtained. This in turn gives a theoretical basis for further improving the performance and tool life of micro-textured cutters.
4
Chen, W.-F., H.-Y. Lai, and C.-K. Chen. "Quality assurance for concave-arc ball-end milling cutters." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 217, no. 2 (February 1, 2003): 181–91. http://dx.doi.org/10.1243/095440503321148821.
This paper presents a systematic modelling procedure for assessing the profile quality of concave-arc ball-end (CABE) milling cutters with a cylindrical shank. CABE milling cutters are widely used in three-axis numerical control (NC) machines for producing dies and moulds of complicated surface features. Evaluation of the contour quality of the CABE milling cutter is crucial in enhancing machining accuracy and efficiency. In order adequately to describe the shape of the clamped cutter, the centre-line axis of the minimum circumscribed cylinder of the cylinder shank is taken as the referenced datum axis. The minimum circumscribed concave-arc revolving surface and the minimum circumscribed spherical surface are carefully derived in sequence. The profile errors and tolerances are estimated. The quality of the CABE milling cutter is assured by using the proposed modelling procedure, and several numerical examples are presented to illustrate its effectiveness. The results indicate that the present method is feasible and can be extended to enhance the quality of various revolving cutters.
5
Zheng, Minli, Chunsheng He, and Shucai Yang. "Optimization of Texture Density Distribution of Carbide Alloy Micro-Textured Ball-End Milling Cutter Based on Stress Field." Applied Sciences 10, no. 3 (January 23, 2020): 818. http://dx.doi.org/10.3390/app10030818.
The insertion of micro-textures plays a role in reducing friction and increasing wear resistance of the cutters, which also has a certain impact on the stress field of the cutter during milling. Therefore, in order to study the mechanisms of friction reduction and wear resistance of micro-textured cutters in high speed cutting of titanium alloys, the dynamic characteristics of the instantaneous stress field during the machining of titanium alloys with micro-textured cutters were studied by changing the distribution density of the micro-textures on the cutter. First, the micro-texture insertion area of the ball-end milling cutter was theoretically analyzed. Then, variable density micro-textured ball-end milling cutters and non-texture cutters were used to cut titanium alloy, and the mathematical model of milling force and cutter-chip contact area was established. Then, the stress density functions of different micro-texture density cutters and non-texture cutters were established to simulate the stress fields of variable density micro-textured ball-end milling cutters and non-texture cutters. Finally, the genetic algorithm was used to optimize the variable density distribution of micro-textured cutters in which the instantaneous stress field of the cutters was taken as the optimization objective. The optimal solution for the variable density distribution of the micro-textured cutter in the cutter-chip tight contact area was obtained as follows: the texture distribution densities in the first, second, and third areas are second, and third areas are 0.0905, 0.0712, and 0.0493, respectively.
6
Jiang, Bin, S. C. Yang, Yin Jin Yang, Min Li Zheng, and P. Sun. "Cluster Analysis on Vibration Characteristic in High Speed Ball-End Milling Hardened Steel." Advanced Materials Research 188 (March 2011): 145–49. http://dx.doi.org/10.4028/www.scientific.net/amr.188.145.
Aim at the uncertainty of vibration behavior in high speed ball-end milling hardened steel, carried out the experiment of high speed milling hardened steel and modal analysis of cutter, studied vibration behavior of cutter and workpiece, and established vibration behavior sequence of high speed milling hardened steel. Using gray system theory, did gray cluster analysis of vibration characteristics, explored the correlation among cutter vibration, workpiece vibration and surface roughness characteristics, put forward the method of characterizing vibration characteristics in high speed ball-end milling hardened steel. The results show that high frequency vibrations of cutter and workpiece are caused by the interaction of centrifugal and dynamic cutting force, the increase of cutter overhang enhances high frequency vibration of cutter, the characteristic of cutter vibration changes from low frequency vibration to interaction of low frequency vibration and high frequency vibration. Using cutters with different overhang, surface roughness of high speed milling hardened steel has similar characteristics, surface roughness in row spacing direction can characterize low frequency vibration of cutter, and surface roughness in feed can characterize resonance characteristic of cutter caused by high frequency vibrations of cutter and workpiece.
7
Wang, Guangyue, Xianli Liu, Weijie Gao, Bingxin Yan, and Tao Chen. "Study on the Design and Cutting Performance of a Revolving Cycloid Milling Cutter." Applied Sciences 9, no. 14 (July 21, 2019): 2915. http://dx.doi.org/10.3390/app9142915.
Problems such as low machining efficiency, severe tool wear and difficulty in safeguarding surface quality always exist in the machining process of titanium alloy with ball-end milling cutters. To address these issues, the design and manufacture of a revolving cycloid milling cutter for titanium alloy processing were studied in this paper. Firstly, the mathematical model of the revolving cycloid milling cutter contour surface was established. The parametric equation of an orthogonal helix cutting edge curve of a revolving cycloid milling cutter is presented. Then, the bottom boundary curve of the rake face is introduced. The five-axis grinding trajectory equation of revolving cycloid milling cutter rake face was derived based on the edge curve equation and coordinate transformation. Next, fabricating the revolving cycloid milling cutter and detecting the grinding accuracy of tool profile and geometric angle were performed. At last, a contrast test regarding the performance of the revolving cycloid milling cutter and the ball-end milling cutter in cutting titanium alloy TC11 was carried out. According to the test results, in comparison to the ball-end milling cutter, the revolving cycloid milling cutter had a smaller ratio of the axial force to the tangential force. Moreover, its flank face wore more slowly and evenly. As a result, a good surface processing quality can be maintained even under larger wear conditions, demonstrating an outstanding cutting performance.
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Liu, Xianli, Xin Tong, Shucai Yang, Chunsheng He, and Xiao Liu. "Models of the relationship among geometric parameters and anti-friction mechanism of micro-texture ball-end milling cutter." Advances in Mechanical Engineering 10, no. 6 (June 2018): 168781401878147. http://dx.doi.org/10.1177/1687814018781474.
Researches on the effect of the micro-texture on the cutting performance and the life of cutters are mostly aimed at turning cutters, but there are few researches on the ball-end milling cutter. On the basis geometry of the micro-texture, the distribution and the relationship among the geometric parameters of micro-pits are studied. A mechanical characteristic model of machining titanium alloy with the micro-texture ball-end milling cutter is established. Optimal parameters of the micro-texture are determined by the simulation. By the test of machining the titanium alloy with the micro-texture ball-end milling cutter, anti-friction properties, the influence laws of the micro-texture diameter on forces, and area occupancy on the tool wear are studied. This article provides a theoretical reference for determining the location of the micro-texture on ball-end milling cutter and selecting texture parameters reasonably. The anti-friction mechanism of the micro-texture is revealed by the theory, which provides a theoretical basis for the efficient processing of titanium alloy.
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Zhang, Wei, Min Li Zheng, Ming Ming Cheng, and Quan Wan. "Experiment Research of Cutter Edge and Cutting Parameters Influence on Machined Surface Roughness for High Speed Milling Hardened Steel." Advanced Materials Research 136 (October 2010): 86–90. http://dx.doi.org/10.4028/www.scientific.net/amr.136.86.
By using experiment cutter edge topography obtained by super depth three-dimension microscope, fits the cutter edge curve and calculate experiment cutter edge radius value; by high speed milling hardened steel experiment, individually researches cutter edge and cutting parameters influence on machined surface in high speed milling hardened steel with end-milling cutter and ball-end milling cutter. The experiment analysis results show that under the same cutting parameters condition, machined surface roughness in high speed end-milling cutter milling is better than in high speed ball-end milling; within experiment selected cutting parameter range, cutter edge radius is the main influence factor on machined surface roughness in high speed end- milling hardened steel, while the influence on machined surface roughness in high speed ball-end milling hardened steel is not obvious. In end-milling, when edge radius and milling depth are in the same order magnitude or the difference is not obvious, milling depth should be a little bigger than selected cutter edge radius value.
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Zhang, Wei, M. L. Zheng, M. M. Cheng, and W. T. Wang. "Experiment Research of Cutter Edge and Cutting Parameters Influence on Machined Surface Roughness for High Speed Milling Hardened Steel." Advanced Materials Research 670 (March 2013): 70–75. http://dx.doi.org/10.4028/www.scientific.net/amr.670.70.
By using experiment cutter edge topography obtained by super depth three-dimension microscope, fits the cutter edge curve and calculate experiment cutter edge radius value; by high speed milling hardened steel experiment, individually researches cutter edge and cutting parameters influence on machined surface in high speed milling hardened steel with end-milling cutter and ball-end milling cutter. The experiment analysis results show that under the same cutting parameters condition, machined surface roughness in high speed end-milling cutter milling is better than in high speed ball-end milling; within experiment selected cutting parameter range, cutter edge radius is the main influence factor on machined surface roughness in high speed end- milling hardened steel, while the influence on machined surface roughness in high speed ball-end milling hardened steel is not obvious. In end-milling, when edge radius and milling depth are in the same order magnitude or the difference is not obvious, milling depth should be a little bigger than selected cutter edge radius value.
Dissertations / Theses on the topic "END- MILLING CUTTER":
1
Hekman, Keith Alan. "On-line identification of cutter runout in end milling processes." Diss., Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/16748.
Shorr, Michael Jared. "Dynamic stability analysis for multi-flute end milling." Diss., Georgia Institute of Technology, 1995. http://hdl.handle.net/1853/17789.
Сарварова, Я. Э., and Y. E. Sarvarova. "Исследование износа и стойкости концевых фрез с алмазоподобным покрытием : магистерская диссертация." Master's thesis, б. и, 2021. http://hdl.handle.net/10995/100785.
Объектом исследования данной работы являются концевые фрезы с алмазоподобным покрытием. Цель работы – определить наиболее благоприятные условия работы концевых фрез с алмазоподобным покрытием. В результате выполнения работы были проведены исследования износа алмазоподобного покрытия на концевых фрезах, построены и проанализированы графики зависимостей этих износов. Проведен анализ полученных результатов и выдвинута гипотеза об еще одной возможной причине разрушения покрытия, в то время как остальные известные причины устранены. Проведено исследование предлагаемой гипотезы. По результатам исследования проведен расчет прочности и подтверждена предлагаемая гипотеза. The object of research in this work is diamond-coated end-milling cutters. The purpose of the work is to determine the most favorable working conditions for end-milling cutters with a diamond-like coating. In the course of the work, the study of the wear of the diamond-like coating on end-milling cutters at various cutting modes was carried out, the graphs of the dependences of these wear in time were built and analyzed. The analysis of the results obtained is carried out and a hypothesis is put forward about another possible cause of the destruction of the coating, while the other known causes have been eliminated. To confirm the hypothesis a study was carried out. According to the results of the study, the strength calculation was carried out, the proposed hypothesis was confirmed.
4
Voruganti, Ravinder Srinivas. "Symbolic and computational conjugate geometry for design and manufacturing applications." Thesis, This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-03032009-041021/.
Wilmot, Wessley. "Process and machine improvements and process condition monitoring for a deep-hole internal milling machine." Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/process-and-machine-improvements-and-process-condition-monitoring-for-a-deephole-internal-milling-machine(2bb87f60-aa39-4fff-a82a-9360ce36b74c).html.
Milling is a widely used cutting process, most commonly applied to machining external surfaces of workpieces. When machining operations are required within hard to reach areas of components, or deep within the bore of components, alternative methods of metal removal are generally employed. Typically when milling at extended reaches, difficulties may increase exponentially when trying to achieve distances several meters into a component. Essentially every topic of the milling process becomes difficult and more convoluted. Firstly to generate a stable cutting condition, and ultimately for an operator to be able to understand the cutting conditions, when all normal senses to interpret the machining stability are removed. The aim for the research is, to enable the operation of high slenderness ratio internal milling operations to become a viable technology, by detailing the measures required, to obtain a stable cutting condition. The process needs to be monitored for degradation of the tooling due to wear, and to prevent catastrophic machine damage from tool breakage or machine component failure. This research addresses the lack of knowledge available for milling with extended reaches, and the knowledge gained to overcome the real difficulties that exist for this process. Initial experiments are conducted on a prototype machine to gain experience of the internal machining operation and the many issues that it faced. Establishing requirements of the process via investigation of the tooling and necessary auxiliary equipment, it becomes possible to consider countermeasures to address the errors generated by torsional twisting of the milling arm. A system for applying a counter torque to reduce torsional deflection errors has been employed to successfully reduce the unavoidable issue over such long distances. For the process to become manageable for an industrial operator without a high level of specialist knowledge, the application of tool condition monitoring (TCM) and process condition monitoring (PCM) had to be applied. This addresses a void in available literature and research with respect to internal machining, and enables the process to become practical for an industrial environment. For this reason the research project will concentrate on the application of TCM and PCM onto the machining system. The completion of the research resulted in the process becoming satisfyingly stable, and with a resulting accuracy that satisfies the requirements of the component. Performance of the final system rivalled or achieved better results than had been experienced by the project sponsor.
6
葉士銘. "Analysis of Surface Roughness for Face-Milling with an End-Milling Cutter." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/85451486487494238048.
碩士 逢甲大學 機械與電腦輔助工程學系 102 Surface roughness is usually utilized as a performance index in contour machining applications. Among the important factors that affect surface roughness, cutting parameters are frequently investigated. This paper focuses on the effect of the cutting parameters, which include cutting speed, feed, and axial depth of cut, on the surface roughness in face milling that adopts an end-mill cutter. In the study, aim for different workpiece material, machine, milling cutter are conducted to analyze the effects of the cutting parameters, and then an experimental surface roughness model is established.
7
Sheng, Li Ying, and 李盈陞. "Analysis of Surface Roughness for Side-Milling with an End-Milling Cutter." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/79260104122857285947.
碩士 逢甲大學 機械與電腦輔助工程學系 102 Contouring using an end mill to do, often using a performance index for the surface roughness, many factors affect the surface roughness, cutting parameters and surface roughness in which the relationship between the most likely to explore. Cutting parameters considered in this paper: milling speed, feed per tooth to give the radial depth of the design parameters for the milling group of 8 experimental variables, and then analyze the results of the milling parameters are derived relationships and surface roughness.
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Wang, Hung-Chun, and 王鴻鈞. "End-milling cutter wear monitoring system using three-dimensions machine vision." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/vuxn44.
碩士 國立清華大學 動力機械工程學系 106 The wear of cutter which affects precision and yield of product is one of the important factor. In the past decades, there were many research predict wear by mathematic model. And national organization also define the type and standard of wear. However, due to the processing uncertainty, wear monitoring system is necessary to control wear effectively. So far, the inspective products are not common yet.Those are because of the system inaccuracy and slowly inspective process. Those reasons lead to the high cost of inspection.To develop multipoint cutters inspection system, it should solve “complex geometric shape”, “multiple wear areas”, “spinning position uncertainty” problems. In view of this, this research utilizes machine vision method to develop milling cutter wear inspection system. To match the requirement of practical application, thesis aim to “reconstruct 3D profile of milling cutter”, “quantitative wear level of milling cutter”.
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Chen, Min-Chung, and 陳旻忠. "New Analytical Milling Force Model with Radial Cutter Runout and Its Applications for Identifying the Cutter Runout Geometry in Micro-end Milling." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/83103483075306964342.
碩士 國立高雄應用科技大學 機械與精密工程研究所 97 In the traditional milling process, the effects of the cutter runout are not obvious, in addition, the radii of traditional cutter are bigger than the feed per tooth, therefore a simple formula for the chip thickness of traditional milling is widely used. With the recent technologiy progress, the micro milling process is recognized as one of the important precision manufactures. Besides, the effects of the cutter runout on the milling process, such as the milling tool vibration, the precision of finished surface, the topography of milling surfaces, also play an important role. Therefore developing a chip thickness model with the radial cutter runout under a micron size is an important subject.
This thesis first focuses on the cutter runout geometry of end milling, in which the effective cutter radius changed due to cutter runout and the trochoidal trajectories of true cutter path are emphasized. The relationship of theoretical undeformed chip thickness of end milling with radial cutter runout is derived. In addition, based on the true tool trajectories of end milling without cutter runout, an approximate correction term of undeformed chip thickness is proposed to modify the conventional chip thickness. Moreover a new analytical formula for determining the undeformed chip thickness is proposed by considering the true tool path and radial cutter runout. This thesis then applies the new chip thickness model formula to calculate the numerical and analytic model of the cutting forces for two teeth end mills, and we confirm the accuracy of the analytic model to the numerical model is well-matched. We also obtain the coefficients of the cutting force, runout geometry and the simulating cutting forces by considering the analytical model. One of the results of the dynamic cutter runout is obtained through the laser vibrometry, the other one is measured in the milling forces by dynamometer. After the comparisons of the analytic cutting forces in the new chip thickness model with the radial cutter runout and the experimental measured values, we confirmed that our proposed model can be succesfully appled to the forecast of the cutting force of the micro end milling.
10
CHEN, PO-CHUN, and 陳柏鈞. "Analysis of Surface Roughness in Side Milling with a Flat-End Cutter." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/24338988625298514448.
碩士 逢甲大學 機械工程學所 99 Surface roughness is usually utilized as a performance index in contour machining applications. Among the important factors that affect surface roughness, cutting parameters are frequently investigated. This paper focuses on the effect of the cutting parameters, which include cutting speed, feed, and depth of cut, on the surface roughness in side milling that adopts an end-mill cutter. In the study, 23 experimental sets are conducted to analyze the effects of the cutting parameters, and then an experimental surface roughness model is established.
Hall, Harold. Tool & Cutter Sharpening for Home Machinists Projects for a Grinding Rest & Accessories; Sharpen Drills, Lathe Tools, End Mills, Milling Cutters, and Hand & Woodworking Tools. Fox Chapel Publishing, 2017.
Parker, Philip M. The 2007-2012 World Outlook for End Mills and Milling Cutters for Machine Tools and Metalworking Machinery. ICON Group International, Inc., 2006.
Hendriko, O., Emmanuel Duc, and Gandjar Kiswanto. "Analytical Method for Obtaining Cutter Workpiece Engagement in Five-Axis Milling. Part 3: Flat-End Cutter and Free-Form Workpiece Surface." In Advances in Sustainable and Competitive Manufacturing Systems, 705–16. Heidelberg: Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-00557-7_58.
Jiang, Bin, Min Li Zheng, Li Qiang Gu, and Shu Cai Yang. "Research on the Cutting Track of Cutter and Fuzzy Comprehensive Evaluation for High Speed Ball-End Milling." In Materials Science Forum, 293–96. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-421-9.293.
Nguyen, Nhu-Tung, Yung-Chou Kao, Hoang Tien Dung, and Do Duc Trung. "A Prediction Method of Dynamic Cutting Forces and Machine-Tool Vibrations When Milling by Using Ball-End Mill Cutter." In Advances in Engineering Research and Application, 47–54. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-37497-6_5.
Lotfi, Sai, Belguith Rami, Baili Maher, Dessein Gilles, and Bouzid Wassila. "The Effect of High-Speed Milling on Surface Roughness of 42CrMo4 Hardened Steel Using a Ball Nose End-Mill Cutter." In Lecture Notes in Mechanical Engineering, 375–81. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-27146-6_40.
Mannan, M. A., L. Westin, and P. Svensson. "Tool Life of Coated End Milling Cutters." In Proceedings of the Twenty-Ninth International Matador Conference, 525–32. London: Macmillan Education UK, 1992. http://dx.doi.org/10.1007/978-1-349-12433-6_69.
Mannan, M. A. "Wear Behaviour of Serrated-Form Roughing End Milling Cutters." In Proceedings of the Twenty-Fifth International Machine Tool Design and Research Conference, 279–86. London: Macmillan Education UK, 1985. http://dx.doi.org/10.1007/978-1-349-07529-4_32.
S. P., Leo Kumar, and Avinash D. "Finite Element Analysis of Chip Formation in Micro-Milling Operation." In Applications and Techniques for Experimental Stress Analysis, 202–13. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-1690-4.ch013.
Finite element analysis (FEA) is a numerical technique in which product behavior under various loading conditions is predicted for ease of manufacturing. Due to its flexibility, its receiving research attention across domain discipline. This chapter aims to provide numerical investigation on chip formation in micro-end milling of Ti-6Al-4V alloy. It is widely used for medical applications. The chip formation process is simulated by a 3D model of flat end mill cutter with an edge radius of 5 μm. Tungsten carbide is used as a tool material. ABACUS-based FEA package is used to simulate the chip formation in micro-milling operation. Appropriate input parameters are chosen from the published literature and industrial standards. 3-D orthogonal machining model is developed under symmetric proposition and assumptions in order to reveal the chip formation mechanism. It is inferred that the developed finite element model clearly shows stress development in the cutting region at the initial stage is higher. It reduces further due to tool wear along the cutting zone.
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Nguyen, N., M. Chen, S. Huang, and Y. Kao. "A prediction method of dynamic cutting force in the milling process of S45C by flat-end mill cutter." In Advanced Materials and Structural Engineering, 795–800. CRC Press, 2016. http://dx.doi.org/10.1201/b20958-164.
Conference papers on the topic "END- MILLING CUTTER":
1
Hekman, Keith A., and Steven Y. Liang. "On-Line Identification of End Milling Cutter Runout." In International Programmable Conference & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1996. http://dx.doi.org/10.4271/961638.
Shi, Kaining, Ning Liu, Sibao Wang, Chi Ma, Bo Yang, Lili Yi, and Ling Kang. "Study of Effect of Teeth Number on Cutting Force for Cutter Selection in the End Milling of TC4." In ASME 2019 14th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/msec2019-2807.
Abstract Cutting force is a very important factor in machining processes for predicting chatter, surface roughness and machining efficiency. For a given cutter, cutting force is determined by cutting force coefficients and uncut chip thickness. Once a new cutter is adopted, repeated experiments are carried out to calibrate its cutting force coefficients. To reduce the high cost and longtime experiments, theoretical analysis of the effect of cutter parameters on cutting force is required. In current literatures, some cutter parameters, such as helix angle and pitch angle, have been studied to explore their effects on cutting force. However, there is little research about the effect of teeth number on the cutting force. To fill up this gap, the effect of teeth number on cutting force is studied in the paper. Firstly, it is derived and experimentally verified that the cutting force coefficients are unchanged for cutters with different teeth number but the same teeth parameters, e.g., rake angle, shear angle, etc. Secondly, by matching the measured cutting force point with the cutter rotation angle, the cutting force coefficients can be calibrated by only one experiment when we assume that the material of the cutter is the same. Therefore, the cutting forces generated by cutters with different teeth numbers can be predicted based on only one experiment. Thirdly, from the various comparisons, it is concluded that cutter with 2 teeth number is suggested for side milling and cutter with 3 teeth number is suggested for slotting when surface roughness is considered. The cutter with 5 teeth number is suggested when only the machining efficiency is concerned. Finally, various experiments are carried out to verify the proposed study in milling of titanium alloy Ti6Al4V (TC4), and the comparison results show a good agreement.
3
Yao, Zhiyang. "Finding Cutter Engagement for Ball End Milling of Tessellated Free-Form Surfaces." In ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/detc2005-84798.
In fabricating free-form surfaces, ball end mills are mainly used to reach the final surface finish requirements. In the milling processes, cutter engagement value measures what portion of the cutter is involved in machining at a given instant of time. This paper presents geometric algorithms for estimating cutter engagement values for ball end milling processes of tessellated free-form surfaces. The cutter engagement value calculated here can be used later on in generating efficient cutter paths, as well as performing adaptive feed rate controls.
4
Sui, Xiulin, Ping Zhao, Chunhong Zhang, Ping Zhang, and Na Hu. "Modeling and compensation analysis of ball-end milling cutter wear." In Mechanical Engineering and Information Technology (EMEIT). IEEE, 2011. http://dx.doi.org/10.1109/emeit.2011.6023713.
Yip-Hoi, Derek, and Xuemei Huang. "Cutter Engagement Feature Extraction From Solid Models for End Milling." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-62015.
Accurate process modeling requires the calculation of cutter/workpiece engagement (CWE) geometry. This is challenging when the geometry of the workpiece is changing un-predictably as is the case for most machined components of moderate complexity. Solid modelers are increasingly being considered as a computational engine for performing these calculations. This is largely due to increased robustness and computing efficiency that is evolving within this technology. The vast majority of reported research using solid modelers focuses on the domain of 2 1/2 D machining with flat end mills. While significant there remain restrictions in the types of inprocess workpiece geometry that can be processed with these approaches. In particular, they assume a constant axial engagement for a connected set of tool paths. This assumption cannot be made when the initial workpiece geometry is non-rectangular prismatic stock, when multiple setups are machined and when tool changes introduce tools of different diameters. In these cases the depth of engagement can vary over a single rotation of the cutter even though there is no axial feed motion. In this paper a solid modeling based solution is presented for calculating these engagements when multiple setups and tool changes are considered. Orthogonal setups and flat end mills are assumed so as to preclude cutter engagement on inclined workpiece faces. Classes of Cutter Engagement Features (ceFs) are defined to support this approach. Algorithms for ceF extraction are provided and validated using a test part. This research introduces the use of features and extends the capabilities of solid modeling techniques for cutting force prediction.
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Matsumura, Takashi, Takahiro Shirakashi, and Eiji Usui. "Simulation of Ball End Milling Process with Cutter Axis Inclination." In 10TH ESAFORM CONFERENCE ON MATERIAL FORMING. AIP, 2007. http://dx.doi.org/10.1063/1.2729599.
Fazelinia, Hassan, and Nejat Olgac. "Optimum Conditions for Variable Pitch Milling." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-13228.
From the perspective of regenerative chatter, variable-pitch milling process offers a mathematically very challenging task. It can be reduced to the problem of stability assessment on a linear time-invariant dynamics (LTI) which has more than one independent delays. This mathematically notorious problem is uniquely solved by a recent paradigm. It is called Cluster Treatment of Characteristic Roots (CTCR). This paper presents a process optimization procedure using CTCR over a special milling operation with variable pitch cutters. The optimization is based on maximizing the metal removal rate while avoiding the onset of chatter, which, in turn, enables production of the parts with a desirable surface quality. The end result is a powerful tool to determine some important geometrical and operational features of the process: (i) the pitch angle selection on the tool (i.e., variable pitch cutter vs. uniform pitch cutter), (ii) the optimum cutting conditions (i.e., depth of cut and the spindle speeds).
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Chen, Huiqun, and Jiliang Hu. "Research on Surface Micro Pattern Generation in Turn-Milling Considering Ball-End Milling Cutter Eccentricity." In 2018 International Conference on Mechanical, Electronic, Control and Automation Engineering (MECAE 2018). Paris, France: Atlantis Press, 2018. http://dx.doi.org/10.2991/mecae-18.2018.149.
Wang, Jue, and Derek Yip-Hoi. "A Feature-Based Approach for Cutter/Workpiece Engagement Calculation in 2-1/2D End Milling." In ASME 2006 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/detc2006-99378.
Machining process modeling requires cutter/workpiece engagement geometry in order to predict cutting forces. The calculation of these engagements is challenging due to the complicated and changing intersection geometry that occurs between the cutter and the in-process workpiece. Solid modelers can be used to perform these calculations by executing intersection operations between cutter and workpiece surfaces at successive cutter locations. These operations utilize parametric surface/surface intersection (SSI) algorithms. For the large number of engagements that can occur in machining a complicated workpiece this can be a time-consuming and sometimes unreliable process. In this paper, in-process machining features are introduced into machining process modeling for 2 1/2 D end milling, and a feature based approach is presented for addressing the computational complexity and robustness issues in the cutter/workpiece engagement calculations. Geometric Invariant (giF) and Form Invariant Machining Features (fiF) are modeled to help represent engagement conditions analytically. Volume decomposition and composition algorithms are described that extract these two types of machining features from the removal volumes generated at each tool pass. Cutter/workpiece engagements can be analytically extracted from giFs and fiFs without applying repetitive SSI operations. This paper presents one part of ongoing collaborative research into developing Virtual Machining Systems. The engagement conditions that are found are inputs to machining process models that identify cutting forces, predict stability and that optimize the process.
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Wang, J. J. Junz, and C. M. Zheng. "A Frequency Domain Force Model With Shearing and Ploughing Mechanisms for a Generalized Helical End Mill." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-39117.
For a generalized helical end mill, this paper presents a frequency domain force model considering the ploughing as well as the shearing mechanisms. The differential chip load and the corresponding cutting forces are first formulated through differential geometry for a general helical cutting edge. The differential cutting force is assumed to be a linear function of the chip load with a proportional shearing force and a constant ploughing force. The total milling force in the angle domain is subsequently composed through convolution integration and analyzed by Fourier analysis. The frequency domain model has the parameters of a general milling process all integrated in a single framework with their roles clearly defined so that Fourier coefficients of the milling force can be obtained for any analytically definable helical cutter. Applications are illustrated for three common helical cutters: the cylindrical, taper, and ball end mills. Furthermore, as an inverse application, a linear algebraic equation is formulated for the identification of six cutting constants from the average forces of two slot milling tests. Demonstration and verification of the milling force model as well as the identification of cutting constants are carried out through experiments with three types of milling cutters.
