Дисертації з теми "Trochoids"
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Dornellas, Ana Paula Siqueira. "Anatomia comparada de Calliostoma adspersum, C. depictum e C. hassler (Vetigastropoda: Trochidae) da costa brasileira." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/41/41133/tde-13072012-092105/.
Повний текст джерелаThe external and internal morphology of Calliostoma adspersum, C. depictum and C. hassler, from Brazilian coast, was studied. Tegula viridula was also analyzed as outgroup. Anatomical characteristics that differentiate all species were found. The major differences were found mainly in the structures: shell; color and papillaes foot; odontophore musculature; anterior esophagus; stomach; spiral caecum and intestinal looping. Calliostoma, according to preliminary data, differentiates from other Trochidae in presenting: reduction or lost of cephalic lappets; pseudoproboscid; renal ampolla; intestinal looping outside haemocoel and m1d odontophore muscle
Bartl, Lukáš. "Racionalizace výroby součásti." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318781.
Повний текст джерелаGazda, Silvester. "Výpočtové modelování tuhosti záběru ozubených kol." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318524.
Повний текст джерелаDornellas, Ana Paula Siqueira. "Análise cladística da subfamília Tegulinae (Vetigastropoda: Turbinidae)." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/38/38131/tde-30062016-105418/.
Повний текст джерелаTegulinae encompasses 44 extant species belonging to six genera. They occur in tropical and subtropical waters of the Eastern Pacific, Caribbean, on the Pacific coast of America, Atlantic coast of South America and East Asia, inhabiting intertidal to shallow sublittoral areas. Tegulines are taxonomically defined by (i) a short growing edge of operculum, (ii) inability to calcify the operculum and (iii) rachidian tooth lacking a secondary cusp or flap providing additional attachment to the radular ribbon. A consensual placement of tegulines within Trochoidea has not yet been reached, and the systematic positions of the genera have never been investigated as a primary objective. A cladistics analysis of the subfamily based on detailed morphology is presented herein on Chapter 1, aimed at testing the groups monophyly. Additionally, the phylogenetic positions of the genera are investigated along with the phylogenetic position of Tegulinae within Trochoidea. The sampled ingroup included representatives of all genera except for Cantallocostoma; the polymorphic species Agathistoma hotessierianum, A. patagonicum and A. viridulum were subdivided into monomorphic taxa, totaling 23 ingroup terminals. The outgroup comprised 24 terminals including representatives of trochoidean families. The Pleurotomarioidea were represented by Perotrochus atlanticus, which was also used as root. Cladistics analysis included heuristic searches carried with equal and differential weighting. Results presented here indicate that Tegulinae are monophyletic, being sister to Prisogaster niger and belonging to the family Turbinidae. The genera studied herein were supported as clades, despite the non-consensual position of Tegula excavata between alternative hypotheses. Polymorphic species were considered non-distinct nominal species, since the characters that divide them into subsamples are highly plastic. Morphological characters were used for the first time to support a hierarchically low-level group for Trochoidea and had significant value in the definition of internal lineages. On Chapter 2, the analyzed taxa from the previous chapter were added to Simones (2011) phylogenetic hypothesis of Canogastropoda in order to investigate the phylogenetic position of Trochoidea in a broader scenario. The results support the monophylies of Vetigastropoda and Trochoidea, and indicate the paraphyly of Zeugobranchia, corroborating previous hypotheses. Tegulinae is a monophyletic group, sister to Prisogaster niger+, Intistoma aureotinctum, Norrisia, Chlorostoma and Agathistoma.
García, Vílchez Mercedes. "Design tools applied to a trochoidal gear pump." Doctoral thesis, Universitat Politècnica de Catalunya, 2014. http://hdl.handle.net/10803/277538.
Повний текст джерелаLas bombas de desplazamiento positivo, en su diseño actual, producen pulsaciones de caudal significantes que resultan en pulsaciones de presión. Estas pulsaciones contribuyen al ruido global generado por la instalación. Además, interactúan con el sistema al cual se encuentra conectada la bomba, reduciendo la vida útil tanto de la bomba como de los componentes del circuito. La bomba rotativa de engranajes trocoidales, un tipo de máquina rotativa de desplazamiento volumétrico, tiene características que hacen que sea adecuada en muchos campos de aplicación. Actualmente, en casos como la aditivación o la dosificación, estas aplicaciones no han sido completamente desarrolladas, y prestan un creciente potencial en el mundo industrial, como en nuevas generaciones de motores diesel o en aplicaciones médicas. La tesis presenta un conjunto de herramientas de diseño aplicadas a bombas de engranajes trocoidales, desde el punto de vista del comportamiento fluidodinámico de la bomba. Estas herramientas de diseño están orientadas a ayudar a la mejora de dos de los principales índices de la bomba: la capacidad volumétrica y la irregularidad en el caudal, dirigiendo al diseñador a nuevos diseños de bombas gerotor más eficientes. Por un lado, la capacidad volumétrica está relacionada con la eficiencia de la bomba, e incrementos en este índice resultan en una mayor eficiencia de la bomba. Por otro lado, la irregularidad en el caudal mide el las fluctuaciones en el caudal generado por la bomba, y reduciendo este índice, la vida útil de la bomba y de la instalación puede ser aumentada, ya que fenómenos como la fatiga se ven atenuados. Esto se consigue a través del uso de procedimientos analíticos, de simulación y experimentales. Desde el punto de vista analítico, se han creado dos nuevos módulos para el software GeroLAB Package, denominados Minimum Clearance Module y Effective Port Areas. También se ha llevado a cabo una simulación dinámica de BondGraph, estudiando la influencia de la geometría de las lumbreras. En esta tesis, el modelo se ha mejorado añadiendo la información de las secciones efectivas de las lumbreras, obteniendo así un modelo más realista. En relación con la simulación numérica, se presenta un modelo de dinámica de fluidos computacional (CFD) tridimensional y con malla deformable. El modelo incluye los efectos de las tolerancias de fabricación y las fugas en el interior de la bomba. Además, también se estudia la influencia de simular los puntos de contactos entre dientes. Se crea una nueva condición de contorno para la simulación del contacto sólido en las holguras radiales entre dientes, establecida como una condición fluidodinámica. El estudio experimental de la bomba se lleva a cabo mediante resolución en tiempo de Velocimetría de Imágenes de Partículas (TRPIV). Esta técnica se adapta a la bomba gerotor, y las medidas obtenidas son capturas en la tubería de salida y en las cámaras entre perfiles trocoidales. Los resultados se evalúan cualitativamente gracias a las herramientas analíticas y de simulación. El procedimiento experimental presentados responde a la necesidad de una metodología para medir de manera directa el caudal generado por la bomba, con una técnica no intrusiva. Constituye una alternativa al método de la fuente secundaria, y es la primera aproximación de TRPIV aplicado a una bomba de engranajes trocoidales, de acuerdo con el conocimiento de la autora
Soukupová, Veronika. "Optimalizace obráběcího procesu s průmyslovou aplikací na obráběcím centru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-432721.
Повний текст джерелаNguyen, Tony. "Trochoidal Milling of AlSiCp with CVD Diamond Coated End Mills." Scholarly Commons, 2018. https://scholarlycommons.pacific.edu/uop_etds/3128.
Повний текст джерелаCoombes, Matthew. "Landing site reachability and decision making for UAS forced landings." Thesis, Loughborough University, 2016. https://dspace.lboro.ac.uk/2134/21139.
Повний текст джерелаBlažo, Marek. "Hnací ústrojí závodního Wankelova rotačního motoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229075.
Повний текст джерелаMak, Yiu-ming, and 麥耀明. "The ecology of the high-zoned littorinids, Nodilittorina trochoides,N. radiata and N. vidua, on rocky shores in Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1996. http://hub.hku.hk/bib/B31236042.
Повний текст джерелаMak, Yiu-ming. "The ecology of the high-zoned littorinids, Nodilittorina trochoides, N. radiata and N. vidua, on rocky shores in Hong Kong /." Hong Kong : University of Hong Kong, 1996. http://sunzi.lib.hku.hk/hkuto/record.jsp?B17665280.
Повний текст джерелаLaguionie, Raphael. "PROGRAMMATION AVANCEE DES MACHINES OUTILS :IMPLEMENTATION DE L'USINAGE TROCHOIDAL ET DU TREFLAGE DANS LA CHAINE NUMERIQUE STEP-NC." Phd thesis, Ecole centrale de nantes - ECN, 2007. http://tel.archives-ouvertes.fr/tel-00366065.
Повний текст джерелаNos travaux ont pour objectif d'implanter deux nouvelles stratégies d'usinage, le tréflage et l'usinage trochoïdal, au sein du format STEP-NC. Pour ceci, nous nous basons sur une description des trajectoires à l'aide de courbes à motif. La construction de ces courbes se fait par répétition d'un motif le long d'une courbe guide. Pour mettre en avant la faisabilité de l'implantation de ces stratégies à motifs dans le format STEP-NC, nous avons développé une chaîne numérique complète permettant, à partir du modèle CAO, de créer le fichier STEP-NC, de générer les trajectoires et d'usiner la pièce sur machine à commande numérique. Une partie de l'intégration de l'usinage trochoïdal et du tréflage dans le format STEP-NC a été réalisé par implémentation dans le logiciel PosSFP, en collaboration avec le laboratoire de l'université de Postech en Corée. Plusieurs pièces tests ont ensuite été usinées pour valider l'ensemble de la chaîne numérique STEP-NC complète dans le cas de l'usinage trochoïdal.
Bellanca-Penel, Pascal. "Jean Thibaud, trajectoires d’un physicien atomiste du XXe siècle." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSE1272/document.
Повний текст джерелаJean Thibaud was born in Lyon in 1901. An electrical engineer, he goes to basic research in a thesis under the direction of Maurice de Broglie in 1924, then he becomes the director of the X-ray physics laboratory. Thibaud worked in particular on the first particle accelerator devices, linear and circular, between 1931 and 1933. He states in 1933, thanks to an experimental technique he developed (the method of the trochoid), the physical characteristics of the positron ; the first antiparticle, discovered by C.D Anderson in 1932. Independently with Frédéric Joliot, he succeeds in making use of the technique of trochoïde to observe for the first time, the annihilation of the positron. In 1935-1936, Jean Thibaud created the Atomic Physics Institute in Lyon, rue Raulin, while occupying a chair of experimental physics at the Faculty of Sciences of Lyon. This laboratory is the first province laboratory dedicated to the study of the atom. Thirteen researchers, technicians and assistants built up this laboratory in 1937. The laboratory will be partially destroyed during the Allied bombing of 26 May 1944. Thibaud benefited from the allocation of 20 million francs to be made after the war, to acquire Cockcroft-Walton generator. This instrument will be installed, with the assistance of the army, at the top of the Vitriolerie in Lyon. In return, Thibaud agreed to put his expertise and that of his employees to the benefit of the training in atomic physics of officers and technicians in the Army from 1951 to 1960. Meanwhile Thibaud was working on the plans of his new laboratory planned to be built on the field of La Doua, in Villeurbanne. He will not see the new laboratory spring up - it was inaugurated in 1963- which is the current Institute of Nuclear Physics of Lyon. Jean Thibaud yet appears as a little-known figure of the twentieth century science. Apart from the Thibaud Prize, awarded by the Academy of Sciences, Arts and Belles-Lettres de Lyon every two years, no proceeding or university artifact keeps his memory. No street or amphitheater bears his name, not even in Lyon, his hometown. To understand the marginalization of Jean Thibaud in scholarly memory and in local memory, we can articulate the different registers of Jean Thibaud’s activities around three bifurcations that his existence seems to have taken. His non-participation in the 1933 Solvay conference marks the first bifurcation. The directions of scientific institutions during the Vichy period and the Occupation constitute the second bifurcation. The latter is associated with a plagiarism case at the Academy of Sciences in January 1951
Mezence, Kény. "Contribution de la rhéologie et de la tribologie à l'usure de produits cellulosiques alvéolaires." Thesis, Ecully, Ecole centrale de Lyon, 2011. http://www.theses.fr/2011ECDL0036.
Повний текст джерелаTribological applications of cellular materials in the presence of liquid require acknowledge of their modes of damage, but they remain little known at present. The study, understanding and modeling the behavior of a composite cell requires a multidisciplinary approach due to the heterogeneity of the material that is difficult to characterize. This material can be analyzed along three distinct axes: the rheological properties (analysis in complex state of deformation in compression and shear with adapted rheometer), the morphology of the cells (3D optical tomographic analysis), the tribological properties (analysis in interface friction and wear particles). The major advantage of our approach is to simultaneously address these three areas and to understand their interactions. The X-ray tomography, followed by computer-assisted mathematical treatment, supplemented by the analysis of wear particles identified morphologies responsible for specific functions of cellular material. A tribo-abrasimeter with innovative models abrasive surfaces highlighted the importance of kinematics in the damage of the material. Characterization methods have been developed to quantify the tribological degradation of the material can also measure the impact of aging(chemical, thermal and mechanical)
Kumar, Naren. "Investigation of drive-train dynamics of mechanical transmissions incorporating cycloidal drives." Thesis, Queensland University of Technology, 2015. https://eprints.qut.edu.au/84752/8/Naren%20Kumar%20Thesis.pdf.
Повний текст джерелаVÁŇA, Jan. "Historie vybraných matematických problémů." Master's thesis, 2018. http://www.nusl.cz/ntk/nusl-375918.
Повний текст джерела周鴻案. "Geometric Transformation from Lissajous to Trochoid Curves and Surfaces." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/09890407198462590870.
Повний текст джерела國立交通大學
理學院碩士在職專班應用科技學程
97
This thesis is the research of the geometric transformstion between Lissajous and trochoidal curves. Lissajous and trochoidal curves are important in geometric curves. However there is not any connection between Lissajous and trochoidal curves in early researches. Firstly, we start from the simple harmonic motions, and the solution is found as Lissajous parametric curves. Furthermore, by means of the transformation, the matrix SU(2) in group theory , a series of curves between Lissajous and trochoids are demonstrated. They have not been discussed until now. Through the concept of SU(2), we obtained the intriguing geometric curves. Importantly, the physics of the transformation is worthy to discussed further in the future.
Chen, Jie-Ting, and 陳玠廷. "Computer Aided Design on Profile of Trochoid-Type Rotors." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/76180540642346650642.
Повний текст джерела國立高雄應用科技大學
模具工程系碩士班
95
Trochoid rotor mechanism is a kind of rotary positive-displacement pump, which is widely used to meet the need of many industrial processings, such as semiconductor industry, optical industry, food industry, turning round type engine…etc. Through building and constructing out its mathematical model and relative design, the profile characteristic of pump could be analyzed. The profile of trochoid rotor mechanism discussed in the paper is set up from four different types. Focus on the relative relationship of the generating rotor and generated rotor, and then set up its relative motion coordinate system by homogeneous coordinate matrix, depict the relative motion relation between two rotors, and utilize the concepts of envelope theory of the curve and family curve to obtain the rotor profile mathematics model. In this paper, one roller is also added in the four types. First, generate base trochoid curve by roller envelope and then build generating curve from base trochoid curve. Make classification and analysis on researches of profile curve with roller. The influence of input parameters on rotor profile is discussed. Finally, address the explanation against the current trochoid rotor mechanism application implementation example.
Chao, Po-Kai, and 趙柏凱. "Development of New Claw Rotor Profiles with Variable Trochoid Ratio Epicycloid Curves." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/54562654906369814626.
Повний текст джерела國立臺灣大學
機械工程學研究所
101
This thesis develops design methods for new claw rotor profiles with variable trochoid ratio epicycloid curves. Each claw profile of a rotor consists of an epitrochoid, two arcs, an epicycloid with variable trochoid ratio, and a conjugate curve corresponding to the epicycloid. The rotor profile consists of several identical claws and the claw rotor pair consists of two identical rotor profiles. The profile of a single claw is determined by four basic design parameters and one adjusting coefficient. The four basic design parameters include pitch radius, rotor radius, number of claws and a conformity angle. The adjusting coefficient with value between 0 and 1 is used for adjusting the smoothness of the claw rotor profile. Two types of modified claw-shape are also proposed, one uses portion of a cycloid gear tooth profile, the other uses portion of a modified cycloid gear tooth profile. The proposed modified claw-shape has better sealing property between rotors than the similar types of modified claw-shape. The proposed modified claw-shapes can avoid the crash and locking between the rotor pair because of the smooth contour.
Hsieh, Chiu-Fan, and 謝秋帆. "Study on Geometry Design of Rotors Using Trochoidal Curve." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/43946257423427587901.
Повний текст джерела國立中正大學
機械工程所
94
The trochoidal derives is widely used in the industry. This thesis mainly discusses the trochoidal curve on the geometry design of Roots pump, gerotor, compressor and cycloidal speed reducer. In the Roots pump design, we propose a new method that is an extended cycloid curve with a variable trochoid ratio. A design flow is presented on how to achieve high volumetric efficiency, and a design procedure on how to make a high sealing rotor is also discussed. In the cycloidal speed reducer design, two types of design on the mathematical model with tooth differences are proposed. One is a pin wheel epitrochoid meshing and the other is a pin wheel hypotrochoid meshing. Using the parameters of the design result, then compare the analysis on their contact forces and assesses curvature which determines whether the cycloidal wheel has a non-undercutting or continuous condition on the tooth profile. For these two designs, simple dimensionless equations of non-undercutting would be derived and the feasible design regions without undercutting or interference between the adjacent pins would then be developed. In addition, the two proposed mathematical models could be applied to the gerotor pump as well. The design with greater pump efficiency and sealing, and its feasible design region without undercutting would be determined by the undercutting analysis. Besides, the ideas of envelope and offset are also added to the gerotor design. After the two conjugate curves are generated, their envelope curves would be proposed. The enveloped profiles could be exercised not only on the gerotor pump but also the compressor. Finally, the comparison with pump performance, such as volumetric efficiency and the sealing, would be presented for these designs, which include envelope and non-envelope rotor profiles.
CHANG, CHUAN LUNG, and 張傳龍. "Comparison of chord height on different trochoidal milling model." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/93246626599584551936.
Повний текст джерела國立高雄應用科技大學
模具工程系
105
Computer-Aided Manufacturing (CAM) and CNC play a major rule in today’s machining industry. In order to adapt to the high-efficient environment, machining industry keeps looking for the new strategies to reduce the cycle time and improve the efficiency for competitive advantages. Among those strategies, trochoidal milling is an efficient one for rough machining. This paper proposed a novel tool path generation strategy to the tool path of trochoidal milling, due to the complicated tool path and the difficulty of generating the machining code, by using chord height model. Three different types of trochoidal milling operations and their modelling are implemented. Comparisons between material removal rate、surface roughness and cusp height are performed by machining experiments. Experiment and measurement results show that the semi-circular chord height model has the large material removal rate, but the cusp height gives a largest tolerance between measured results and calculated results. The material removal rate and surface roughness of the circular chord height model are the lowest. As for the trochoidal model, which has the most complicated tool path, shows the lowest surface roughness compared with other types of chord height model and cusp height gives a lowest tolerance between measured results and calculated results.
Robertson, Wesley Daniel. "Trochoidal electron impact time-of-flight spectrometry of chlorodifluoromethane." 2003. http://etd.utk.edu/2003/RobertsonWesley.pdf.
Повний текст джерелаTitle from title page screen (viewed Sept. 22, 2003). Thesis advisor: Robert N. Compton. Document formatted into pages (viii, 97 p. : ill., charts). Vita. Includes bibliographical references (p. 85-87).
Huang, Tzu-Hao, and 黃子浩. "Study on Trochoidal Milling of Ti-10V-2Fe-3Al Alloy." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/uhtycr.
Повний текст джерела國立臺灣科技大學
機械工程系
106
With the progress of the times, aerospace industry is developed, and the importance of aerospace manufacturing has increased. Titanium alloys are widely used in the aerospace industry due to their high strength, high heat resistance, and good corrosion resistance. It is also difficult to process because of its characteristics, which in turn leads to high processing costs. Therefore, how to improve processing technology and reduce processing costs is the goal pursued by the current aerospace manufacturing industry.This experiment mainly discusses the machinability of the Ti-10V-2Fe-3Al by using trochoidal milling, and uses Taguchi experimental method to design the experimental parameters, and discusses the influence factors of the cutting characteristics and analyzes the influence factors. The experimental factors are cutting speed 20, 40, 60m/min, feed per tooth 0.045, 0.060, 0.075mm/tooth, trochoidal steps 0.9, 1.2, 1.5mm, trochoidal width 4, 8, 12mm. The experimental results show that the higher cutting speed, the smaller trochoidal width, the larger of feed per tooth and trochoidal steps can get the better the material remove rate. Tool wear part will use tool wear and cutting volume ratio as the result of the analysis. The results show that the slower cutting speed, the larger trochoidal width, and the proper per-tooth feed and trochoidal steps can get better result. As Tool wear result picture found that the faster cutting speed more likely to cause notch wear, the slower cutting speed more prone to cause adhesive wear. From the cutting simulation found that the larger trochoidal width can get the smaller contact angle between tool and workpiece.The surface roughness results show that the larger trochoidal width and trochoidal steps, the smaller feed per tooth and proper cutting speed can get the better surface roughness. At last, comparing the cutting performance of trochoidal and side milling methods, it was found that trochoidal method can have lower tool wear than side milling method.
Liao, Kang-Yu, and 廖剛佑. "The Study of the Optimization of Parameters Modified Trochoidal Milling Path SCM415." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/70795263958701988794.
Повний текст джерела龍華科技大學
機械工程系碩士班
104
The slot milling (width 26 mm*500mm) experiments were conducted on SCM415 substrate using ø6 mm, high speed steel end mill by means of modified trochoidal milling method. In this approach, the Taguchi method with orthogonal array. The experimental studies were conducted under different spindle speed, feed rate, cutting depth and cutting width. Results of the study in material removal rate, the best of cutting data: spindle speed 5251rpm, feed rate 0.09mm/Flute, cutting depth 12mm, cutting width 1.2mm, material removal rate 8515mm3/min, Flank Wear wear width is 0.39mm. Tool wear optimized parameters: spindle speed 4774rpm, feed rate 0.09mm/Flute, cutting depth 6mm, cutting width 1.2mm, Flank Wear wear width is 0.11mm.
JUAN, CHUN CHENG, and 阮俊誠. "A Case Study for Surface Roughness of Trochoidal Milling Using Six Sigma Methodology." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/46185849369124104911.
Повний текст джерела台灣首府大學
工業管理學系研究所
104
Cycloid shining metal can significantly increase the efficiency of shining metal tub. By using the process on the components, it shows the significant effect on Cycloid shining metal in terms of the decrease of cutting force and cutting entropy. The main purpose of this study is to improve roughness of SKD11 by using differ cutting edges tungsten steel alloy cutting blade with high speed Cycloid process method. In order to decrease the processing time and the roughness, and minimize the wear and tear of the differ cutting edges of tungsten steel alloy cutting blade, which are the main goal of this research. The main content includes: improve the roughness of SKD11 using Cycloid process method by applying six sigma; determine the condition of wear and tear using different cutting edges of tungsten steel alloy cutting blade. The research mainly focuses on four parameters such as the rotational speed of axis, rate of forwarding, the depth of cutting, and the diameter of cutting tool to determine the difference of traditional digging method and Cycloid process method. The optimized experimental result is happened when the rotational speed was 6000 rpm, the speed of forwarding was 3000mm/min, the cutting forwarding step was 10%, the diameter of cutting tool was 10mm, and the cutting depth was 19mm. Consequently, the processing time decreases to one twelfth and the life of the cutting tool increases to twice compared with original method.
Chen, Chin-Sheng, and 陳晉昇. "The Study of the Optimization of Parameters Trochoidal Milling Path SCM415 Based on Taguchi Method." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/94436306583571627153.
Повний текст джерела龍華科技大學
機械工程系碩士班
103
The slot milling (width 13 mm) experiments were conducted on SCM415 substrate using end mill (ø6 mm, high speed steel) by means of trochoidal milling method. In this approach, the Taguchi method with orthogonal array, signal-to-noise ratio and analysis of variance (ANOVA) were employed to study the trochoidal milling characteristics. The experimental studies were conducted under different spindle speed, feed rate, cutting depth and cutting width. ANOVA results shows that the spindle speed has a dominant effect on flank wear. The lower spindle speed lead to longer tool life. Furthermore, the feed rate is the most significant factor for material removal rate. An increase in feed rate results in high material removal rate during a specific period of time. The advantages of trochoidal milling are generate low cutting forces, the heat and wear are uniform leading to longer tool life than traditional slot milling.