Modeling and analysis of tangential force in robot abrasive belt grinding of nickel-based superalloy. Grinding force directly affects the grinding equipment performance, the grinding tool wear, and the machined surface quality, and it is an important grinding performance indicator. In this paper, a….Web
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Compared with single-enveloping worm gearing, double-enveloping worm gearing can provide the same load capacity with a more compact volume and a higher efficiency. However, that the relief grinding of its hob can not be finished automatically till now limits its applications because all of the cutting edges on the hob have different …Web
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Ultra-precision micro machine tool (UPMMT) has always been a high-precision machine tool for microscale/mesoscale mechanical components. It has demonstrated many advantages in small footprint, low cost of energy, low operational cost, high machining precision, etc. However, developing UPMMT is always a complicated, …Web
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A Nano-grinding centre as shown in Fig. 2 (a) developed by Aurich et al. was used to integrate the fabrication of micro-pencil grinding tool and perform the micro-grinding of silicon [1]. Dimension of the machine was 900×600×600 mm and it could provide a wide speed range of 15,000 to 160,000 rpm.Web
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Grinding wheel wearing fast and metal adhering were severe in hard sphere grinding, which led to wheel overload and clogging. If a fixed-feed grinding was used, the normal pressure between the workpiece and the grinding wheel increased rapidly. Once the grinding load on the grinding wheel was greater than the strength of the retaining bond …Web
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The development of high-reliability, high-precision large-scale CNC ultra-precision grinding machines is essential for the efficient processing and manufacturing of large-diameter optical components. In this paper, we studied the reliability and the precision-maintenance of the ultra-precision grinding machine tool experimentally. First, the …Web
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Superalloys are widely used in aerospace and energy fields by virtue of superior physical properties, especially in high-temperature environments. However, superalloys have poor machinability and are typical difficult-to-machine materials. Robotic belt grinding is an effective and popular method for finish machining superalloys, …Web
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The International Journal of Advanced Manufacturing Technology Aims and scope Submit manuscript ... Download PDF. Berend Denkena 1, ... two steps with a dressing spindle (C72FCA2, Dr. Kaiser Diamantwerkzeuge & Co. KG) that is integrated into the tool grinding machine. In the first dressing step, rough machining is …Web
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Complex structural components with small concave surfaces are widely needed in aerospace, optics, and electronic industry. On account of the interference between grinding wheel and workpiece and small concave surfaces, traditional grinding machine cannot realize the grinding process; hence, a specialized grinding machine …Web
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Wheel-sided chatter vibration is a limiting factor in terms of productivity and surface finish regarding the application of conventional grinding wheels. Due to the formation of waviness on the grinding wheel during the process, many expensive trueing cycles are necessary. Therefore, a system for chatter detection and elimination for …Web
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Intelligent Manufacturing and Robotics-Research Article. International Journal of Advanced Robotic Systems. The optimization of accuracy and efficiency for …Web
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A simple geometric and optimal method is adopted for the five-axis CNC grinding of the end-mill cutters. In this research, initially a simplified parametric profile of the grinding wheel is constructed using line segments and circular arcs. The equation of the wheel swept-surface in five-axis grinding is derived. Then subjected to the flute profile …Web
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The LUVAG kinematic analysis was carried out using the abrasive M on the grinding wheel in Fig. 1 as a reference point. In this case, the specimen is vibrated longitudinally along the direction of the variable amplitude rod, the grinding wheel grinds the specimen, the vibration direction of the variable amplitude rod is perpendicular to the …Web
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The present literature review explores the energy-efficient ultrafine grinding of particles using stirred mills. The review provides an overview of the different techniques for size reduction and the impact of energy requirements on the choice of stirred mills. It also discusses the factors, including the design, operating parameters, and feed material …Web
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Applications in modern grinding technology range from high-precision kinematics for grinding very large lenses and reflectors through to medium size …Web
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The three-dimensional geometric contour of the grinding wheel and workpiece are usually digitized by stylus instrument or optical sensing, 38, 39 and the macro geometric model of the grinding wheel can be obtained by combining contour elements. 40 Fig. 4 shows the kinematic equations of common grinding methods. Three traditional grinding …Web
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In the formula, ({C}_{e}) is the carbon emission indirectly generated in the grinding process, ({E}_{e}) is the electric energy consumed by the machine tool during the grinding process, and ({f}_{e}) is the electric energy emission factor in the region, and its value is related to the structure of the local power grid. For details, please refer to the …Web
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Compliant grinding and polishing refers to a class of fine material processing methods relying on one or more system element being compliant with the workpiece surface in a controllable and reversible manner, thus being distinct from conventional rigid wheel grinding and polishing. The resulting surface adaptability …Web
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2.1 Model description. The deep hole internal grinding (DHIG) machine's main components include a machine base consisting of two beds, a working table, a workpiece spindle headstock, a grinding shaft mechanism, a feed axis arrangement (X-axis), and a workbench axis arrangement (Z-axis) displayed in Fig. 1.Mainly, the …Web
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grinding burn accurately using support vector machine (SVM). Hilbert–Huang transform was applied by Yang et al. [17] to extract features from AE and accelerationsignals.The amplitude of the first three intrinsic mode function (IMF) components and the spectral centroid of the 4th and 5th IMF components were found to discriminate grinding burn.Web
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The International Journal of Advanced… 2018 In the case of generation grinding of the higher order modification gear surface, there are main problems such as difficulty in solving the 3D meshing equations and complexity of expressing the …Web
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Grinding is a manufacturing process which significantly contributes in producing high precision and durable components required in numerous applications such as aerospace, defence and...Web
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The dynamic performance of the grinding machine spindle determines its ultimate vibration resistance and the machining accuracy. To gain better dynamic performance of the grinding machine spindle system, the integrated evaluation and optimization method should take both manufacturing process and machine tool into …Web
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Download PDF. The International Journal of Advanced Manufacturing Technology Aims and scope Submit manuscript ... However, a numerical control (NC) grinding machine tool has disadvantages of high cost and poor flexibility, which makes it unsuitable for machining precision-cast blades. In recent years, industrial robots have …Web
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The small diameter of the tool causes different behavior in the grinding process in comparison with the tools that are used by universal grinding machines. In this study, we develop a robotic surface grinding force model to predict the normal and tangential grinding forces. A physical model is used based on chip formation energy and …Web
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The automated use of a computer to manage machining equipment is known as numerical control. Without a manual intervention directly overseeing the milling cutter [].A computer numerical control CNC machine follows coded, programmed commands to process a piece of material in accordance with standards of the manufacturer …Web
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A comprehensive review on the grinding process: Advancements, applications and challenges. ARCHIVE Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering ...Web
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This paper proposes a new method for measuring grinding wheel contours using machine vision. The vision-aided measuring system comprises a CCD coupled with a telecentric lens, back lighting board and frame grabber. Measuring the image of the specimen with a grinded gap substitute directly captures the image of the actual …Web
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