Littérature scientifique sur le sujet « Thread milling cutter »

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Articles de revues sur le sujet "Thread milling cutter"

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Lee, Seok Won, et Andreas Nestler. « Simulation-aided Design of Thread Milling Cutter ». Procedia CIRP 1 (2012) : 120–25. http://dx.doi.org/10.1016/j.procir.2012.04.019.

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Han, Zhenyu, Hongyu Jin, Maoyue Li et Hongya Fu. « An Open Modular Architecture Controller Based Online Chatter Suppression System for CNC Milling ». Mathematical Problems in Engineering 2015 (2015) : 1–13. http://dx.doi.org/10.1155/2015/985837.

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In milling processes, chatter is a kind of sudden relative vibration appearing between the cutter and the workpiece, which results in poor part quality, accelerated tool wear, and shortened spindle life. In this paper, an open modular architecture controller (OMAC) of machine tool which integrates the algorithms including chatter recognition, compensation command generation, and execution is proposed with the aim of providing an integrated solution for milling chatter suppression in CNC kernel. To effectively identify chatter, experiments are designed to determine the optimal installation place of accelerometer and then triaxial cutting forces and acceleration signals are compared to see which are more sensitive to chatter onset. In terms of data processing, 16 sampling points in time domain are chosen to perform online fast Fourier transform (FFT) in consideration of signal effectiveness and computational efficiency. To implement real-time chatter suppression in CNC kernel, a simplified dynamic model of milling system is used to obtain the relationship between chatter frequency and spindle speed. Finally, an adaptive control module which completes force signal extraction and processing by FFT and has the ability to modify related cutting parameters is designed to interact with other modules in OMAC where data acquisition thread and interpolation thread are synchronized. The proposed system is experimentally validated.
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Wada, Tadahiro, et Koji Iwamoto. « Tool Wear of Titanium/Tungsten/Silicon/Aluminum- Based-Coated Solid Carbide Thread Milling Cutters in Thread Tapping of Chromium-Molybdenum Steel ». International Journal of Engineering and Technology 7, no 6 (décembre 2015) : 445–48. http://dx.doi.org/10.7763/ijet.2015.v7.834.

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Ямников, Александр, Aleksandr Yamnikov, Дмитрий Волков et Dmitry Volkov. « Cutting procedure modification in hob cutters for multiple-thread spiral projection shaping on mandrel ». Science intensive technologies in mechanical engineering 2018, no 2 (20 février 2019) : 16–21. http://dx.doi.org/10.30987/article_5c486cc3f241a5.46542352.

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An efficient technology for helical groove shaping on inner cylindrical surfaces with the use of a pressing operation through a ring matrix on a spiral press mandrel is described. There are presented investigations and offers are given to update spiral projection gear milling in mandrels with the aid of milling cutters with a modified cutting procedure.
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Dong, Liangliang, Jing Wang, Xiaohua Zhu, Shengwei Zhang, Tian Li et Kun Li. « Study on the law of wear of milling cutter for Waspaloy internal threads with a small diameter ». International Journal of Advanced Manufacturing Technology 107, no 3-4 (26 février 2020) : 1327–36. http://dx.doi.org/10.1007/s00170-020-05059-6.

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Мальков, О. В. « The main directions of thread milling research and thread milling cutter design ». Engineering Journal : Science and Innovation, no 53 (mai 2016). http://dx.doi.org/10.18698/2308-6033-2016-4-1487.

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Malkov, Oleg, et Ludmila Mal'kova. « Developing a mathematical model of the tooth profile angles of thread milling cutter with helical flutes. » Science and Education of the Bauman MSTU 14, no 04 (3 avril 2014). http://dx.doi.org/10.7463/0414.0707227.

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Malkov, Oleg. « Design and research of calculation models of the tooth profile angles of thread milling cutter with helical flutes ». Science and Education of the Bauman MSTU 14, no 03 (3 mars 2014). http://dx.doi.org/10.7463/0314.0702743.

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Мальков, О. В., И. А. Павлюченков et В. Н. Козяр. « Profiling the Flutes in Thread-Milling Cutters ». Proceedings of Higher Educational Institutions. Маchine Building, no 696 (mars 2018). http://dx.doi.org/10.18698/0536-1044-2018-3-3-13.

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« Thread milling costs reused with updated prototype cutters ». Aircraft Engineering and Aerospace Technology 81, no 4 (3 juillet 2009). http://dx.doi.org/10.1108/aeat.2009.12781dad.009.

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Thèses sur le sujet "Thread milling cutter"

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Šalanda, Jiří. « Návrh zefektivnění přípravy výroby u vybrané technologie ». Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228170.

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The aim of this thesis is shortening of standard mechanical time of work piece from aluminium casting alloy. . The shortening can be reached by linear programming of cutting conditions of cutting conditions during machining holes. This method is defined both theoretically and is applied to given setting and by the calculation by the Simplex method. Another method is exchange of tools at machined threads, it’s exchange of used tools for the new one, that makes more operations at a time. The result is shortening of mechanical time, augmentation of productive dose, capacities of workplace and productivity work.
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Wang, Hung-Chun, et 王鴻鈞. « End-milling cutter wear monitoring system using three-dimensions machine vision ». Thesis, 2018. http://ndltd.ncl.edu.tw/handle/vuxn44.

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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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Salas, Bolanos Gerardo. « Optimization of Three-Axis Vertical Milling of Sculptured Surfaces ». Thesis, 2010. http://hdl.handle.net/10012/5164.

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A tool path generation method for sculptured surfaces defined by triangular meshes is presented in this thesis along with an algorithm that helps determine the best type of cutter geometry to machine a specific surface. Existing tool path planning methods for sculptured surfaces defined by triangular meshes require extensive computer processing power and result in long processing times mainly since surface topology for triangular meshes is not provided. The method presented in this thesis avoids this problem by offsetting each triangular facet individually. The combination of all the individual offsets make up a cutter location surface. A single triangle offsetting results in many more triangles; many of these are redundant, increasing the time required for data handling in subsequent steps. To avoid the large number of triangles, the proposed method creates a bounding space to which the offset surface is limited. The original surface mesh describes the bounding surface of a solid, thus it is continuous with no gaps. Therefore, the resulting bounding spaces are also continuous and without gaps. Applying the boundary space limits the size of the offset surface resulting in a reduction in the number of triangular surfaces generated. The offset surface generation may result in unwanted intersecting triangles. The tool path planning strategy addresses this issue by applying hidden-surface removal algorithms. The cutter locations from the offset surface are obtained using the depth buffer. The simulation and machining results show that the tool paths generated by this process are correct. Furthermore, the time required to generate tool paths is less than the time required by other methods. The second part of this thesis presents a method for selecting an optimal cutter type. Extensive research has been carried out to determine the best cutter size for a given machining operation. However, cutter type selection has not been studied in-depth. This work presents a method for selecting the best cutter type based on the amount of material removed. By comparing the amount of material removed by two cutters at a given cutter location the best cutter can be selected. The results show that the optimal cutter is highly dependent on the surface geometry. For most complex surfaces it was found that a combination of cutters provides the best results.
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Chen, Wei-Jr, et 陳威誌. « An Experimental Study on the Temperature Measurement of A Three Dimensional Milling Cutter ». Thesis, 2008. http://ndltd.ncl.edu.tw/handle/34772462533102247420.

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碩士
國立高雄應用科技大學
模具工程系碩士班
96
The present research discusses milling cutter temperature distribution in the milling workpiece of the experimental process. The milling cutter plays an important role in the milling machine works. If the milling cutter is not appropriated, the cutting quality is not qualify even an advanced precision optical machinery is adopted. One of the milling cutter behavior is influence by the temperature distribution of the cutter. Therefore, the temperature distribution of the milling cutter is an important issue in the milling work. The experiment is made to adopt the heat conduction character and physical property form of the milling cutter. In the process, the thermocouple is embedded in the milling cutter and the temperature is measured in the milling process.
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Chapitres de livres sur le sujet "Thread milling cutter"

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Malkov, O. V., et I. A. Pavlyuchenkov. « Thread Milling Cutter Flute Production Possibility Research by Using Typical Profiles Grinding Wheels ». Dans Lecture Notes in Mechanical Engineering, 1089–96. Cham : Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-22063-1_116.

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« USE OF PEAT AS LITTER FOR MILKING COWS I* Peltola Work Efficiency Association, Finland This study compared the advandages and disadvandages of peat, straw and sawdust for use as litter. The way in which peat is used, the amounts used and the effect of the litter on the structural parts of the tying-stall shed and an the labour requirement were investigated, and the quality of milk, the incidents of mastitis and the value of the manure were studied. The results show that peat absorbs urine and binds airmonia better than the other litters tested. Peat manure contains more than the average amounts of nitrogen and magnesium, and the nutriens are in the form that is more readily utilised by plants. The anmonia contents of the cowshed air were slightly lower with peat litter than with either straw or sawdust. The difficulty in peat was in handling it. There were no significant differences between the three litters in terms of the labour required. On the other hand, peat was more difficult to store during the cold winter because it tended to freeze. Urine separation systems were easily blocked by peat. The dust content of the cowshed air rose when peat was used. The litter had no affect on the state of health of the animals or on the quality of the milk. These factors are affected more by conditions on the farm in question. Peat was found to be suitable for use as litter. Flexible use of peat requires storage, spreading method and manure removal be designed specifically for peat. These factors are being studied in the final part of the work, which is still in progress. 1. INTRODUCTION The aim of this three year joint study was to investigate the advantages and disadvantages of peat, straw and sawdust for litter as comprehensively as possible. In Finland straw is used on 67% of farms, sawdust on 25% and peat on 3% of dairy farms. Only about 3% of farms use no litter at all. Itie use of peat as litter was compared with sawdust and straw on 15 dairy farms during the indoor feeding period of 1983- 84. For the first 3 months 5 farms used straw as litter, 5 used sawdust and 5 peat. At the end of this period all the farms changed over to peat litter. All the cowsheds had tying-stalls, from which the manure was removed in solid form. The use of peat as litter was studied in Finland in the 1930s and 40s. Today, peat is harvested mechanically by means of a milling cutter, which creates fine particle peat. Cowsheds have also changed with respect to the use of peat with the mechanisation of manure removal. At the same time workers are now demanding better working conditions. » Dans Odour Prevention and Control of Organic Sludge and Livestock Farming, 195. CRC Press, 1986. http://dx.doi.org/10.1201/9781482286311-83.

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Actes de conférences sur le sujet "Thread milling cutter"

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Yalcin, Cuneyt, Robert B. Jerard et Barry K. Fussell. « Milling Cutter Data Structures for Use in Force Models ». Dans ASME 2009 International Manufacturing Science and Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/msec2009-84368.

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In this study we present a new general representation for describing a milling cutter and an internal data structure that systematically stores the cutting edge segment properties of the milling cutter. The intention of this effort is to enable commercial milling simulation software packages to communicate and store complicated cutter information, and thus enable them to include improved models developed in academic research. Examples with various milling cutters are given, and the versatility of the structures is demonstrated by using two different cutting force models with three different milling cutters. Force calculation time was decreased by a factor of four by using the internal data structure to store pre-calculated trigonometric functions.
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Yi, Xianzhong. « A General Mathematical Model for Whirlwind Milling Technique Machining Complex 3D Surfaces ». Dans ASME 2000 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/detc2000/cie-14631.

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Abstract Machining complex three-dimensional surfaces high-productively and effectively is a challenging task. The whirlwind milling technique is a new milling model proposed in this paper based on 5-axis CNC bed-type horizontal milling machine. Its milling cutter head is similar to a shallow disk, and its cutting lip consists of about two dozens of standard turning-tool cutters. It is easy for this whirlwind milling cutter to avoid gouging and tool interference because of its very narrow cutter width and sharp cutter tooth tip. Moreover, the machining strategy of this new technique is able to align principal curvatures of the machined surfaces with that of cutter tool rotational symmetric surface to generate a close fit. So, it can increase the metal removal rate (MMR) at the point of contact and enhance the milling productivity. The essential characteristics of this technique such as its working mechanism, kinematic relationship, fundamental milling equation and cutter location data, are discussed in details. The new proposed method has been used in practical process of manufacturing complex 3D surfaces in petroleum industry.
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Pop, Petru A. « The Analyses of Dynamic Stability at Milling Machine Tools ». Dans ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/detc2009-86070.

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The paper has presented a study about dynamic stability of universal precision milling machine, using four side-milling cutters. These cutters with three edges and inserts have different geometrical parameters, constant and variable pitch angle. For study of milling cutting process has used a dynamic installation, ensured the acquisition of vibrations and cutting forces from three axes of milling machine. The installation is making by milling machine (FUS 22-modified), dynamometer with 16 strain gages, electronic bridge circuit, accelerometer and computer. The calculus and interpretation of dynamic tests have done by MATLAB Program, being recorded approx. 500 tests. For each side milling cutter has plotted stability diagrams, which established the dynamic performances of milling machine and given the solutions of improving process. The side-milling cutters with variable pitch angle had enhancement the dynamic stability of milling process, by suppressing the amplitude of vibrations and cutting forces.
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Wang, J. J. Junz, et C. M. Zheng. « A Frequency Domain Force Model With Shearing and Ploughing Mechanisms for a Generalized Helical End Mill ». Dans ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-39117.

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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.
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Fu, Qiang, et Zezhong C. Chen. « Efficient, Accurate Geometric Modeling for Three-Axis Sculptured Surfaces Milling ». Dans ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/detc2010-28910.

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Efficient, accurate geometric modeling for three-axis sculptured surfaces milling is quite challenging due to complexity of workpiece geometry change during machining. This paper presents an efficient, accurate approach to extracting the cutter/workpiece engagement (CWE) geometry and applying this geometry to an existing mechanistic force model in order to predict instantaneous cutting force, torque and power. In our research, a basic geometric modeling of chip removal in three-axis milling is investigated, and an effective model is proposed to represent the cutter swept profile. Computationally efficient, closed-form formulations are derived for general APT (Automatically Programmed Tools) cutter geometry. A Z-level B-Rep model is adopted to represent the in-process workpiece model, and an innovative geometric approach is used to extract the CWE geometry. Then, a mechanistic cutting force model is integrated to predict the cutting forces. As a result, a milling process simulation system is developed for three-axis virtual milling of sculptured surfaces. The developed system is experimentally verified by comparing the simulation results with actual forces measured from machining a test surface.
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Yao, Zhiyang, Satyandra K. Gupta et Dana S. Nau. « Finding the Maximal Cutter for 2-D Milling Operations ». Dans ASME 2000 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/detc2000/cie-14630.

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Abstract Finding the biggest cutter is expected to help in the selection of the right sets of tools and the right type of cutter trajectories, and thereby ensure high production rate and meet the required quality level. In this paper, we describe a new geometric algorithm to determine the biggest feasible cutter size for 2-D milling operations to be performed using a single cutter. Our algorithm works not only for the common closed pocket problem, but also for the general 2-D milling problems with open edges. In particular: • We give a general definition of the problem as the task of covering a target region without interfering with an obstruction region. This definition encompasses the task of milling a general 2-D profile that includes both open and closed edges. • We discuss three alternative definitions of what it means for a cutter to be feasible, and explain which of these definitions is most appropriate for the above problem. • We present a geometric algorithm for finding the maximal cutter for 2-D milling operations, and we give an outline of a proof that our algorithm is correct.
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Pop, Petru A. « The Study of Cutting Forces About Dynamic Stability of Milling Machine Tools ». Dans ASME 2008 9th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2008. http://dx.doi.org/10.1115/esda2008-59231.

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The paper has presented a study of cutting forces about dynamic stability of milling machine tools. For that has required the analysis of dynamic machining system (DMS), represented by the interaction between elastic structure of machine tool and cutting process. The cutting force occurred during cutting process is dependent by a certain factors as thickness cut, physics-mechanics properties of workpiece, geometry of shaped edge tool, etc. An important factor, which has direct influenced about DMS, is present of vibration, in special at chatter frequency due to real perturbation and damages of DMS. The magnitude of cutting force depends largely on the tool-work engagement and depth of cut. The dynamic installation has used for study of milling cutting process assured the acquisition of vibration and cutting force on each three axes of milling machine tool. The calculus and interpretation of dynamic tests had done by MATLAB R14.v7.01 Program. Dynamic tests have been more that 150 recordings, by variation of cutting depth for each spindle speeds of machine until occurring chatter. It had used for testing four milling cutters with different geometric parameters and differential pitch of cutter. These dynamic tests are emphasizing the direct influences of cutting forces about dynamic machining system. Thus, by reducing, the magnitude of cutting forces due to suppressing the vibrations and implicit enhanced the dynamic stability of milling machine and quality of machining workpiece.
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Pottmann, Helmut, Johannes Wallner, Georg Glaeser et Bahram Ravani. « Geometric Criteria for Gouge-Free Three-Axis Milling of Sculptured Surfaces ». Dans ASME 1998 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/detc98/mech-5874.

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Abstract The paper presents a geometric investigation of collision-free 3-axis milling of surfaces. We consider surfaces with a global shape condition: they shall be interpretable as graphs of bivariate functions or shall be star-shaped with respect to a point. If those surfaces satisfy a local millability criterion involving curvature information, it is proved that this implies globally gouge-free milling. The proofs are based on general offset surfaces. The results can be applied to tool-motion planning and the computation of optimal cutter shapes.
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Aijun, Tang, Liu Zhanqiang et Ma Hailong. « Three-Dimensional Stability Lobes of Milling Thin-Walled Plate with Different Cutter Geometry Parameters ». Dans 2012 Third International Conference on Digital Manufacturing and Automation (ICDMA). IEEE, 2012. http://dx.doi.org/10.1109/icdma.2012.228.

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Lu, Xiaohong, Hua Wang, Zhenyuan Jia, Likun Si et Steven Y. Liang. « Effects of Tool Nose Corner Radius and Main Cutting-Edge Radius on Cutting Temperature in Micro-Milling Inconel 718 Process ». Dans ASME 2017 12th International Manufacturing Science and Engineering Conference collocated with the JSME/ASME 2017 6th International Conference on Materials and Processing. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/msec2017-2997.

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Cutting temperature plays an important role in micro-scale cutting process because the dimension of the micro-milling cutter is relatively small and the wear of micro-milling cutter is sensitive to temperature. Considering the sidewall of a groove is formed by main cutting edge of the tool, and the bottom of a groove is formed by tool tip and the edge on the end of the tool. Therefore, effects of tool nose corner radius and main cutting edge radius on cutting temperature in micro-milling process cannot be ignored. However, few studies have been conducted on this issue. The effects of tool nose corner radius and main cutting edge radius on cutting temperature is investigated. A three-dimensional micro-milling Inconel718 model is established by using the software DEFORM3D. And the influence of tool nose corner radius and main cutting edge radius on the size and distribution of cutting temperature are studied by numerical simulation, which is verified by experiments. The work provide reference for the control of the size and distribution of the cutting temperature during micro-milling process.
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