Control Grinding Abstract
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- Control Grinding Abstract
1 Abstract. Help. New Window. The invention discloses a method for manufacturing a hard alloy numerical control blade. The method comprises the following steps of: batching the following components in percentage by mass: 10 to 15 percent of hard phase titanium carbide, 6 to 8 percent of tantalum carbide, 4 to 6 percent of niobium carbide, 8 to ...
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For this repetit ve ycle control problems in CNC grinding, iterative learning control (ILC) by Uchiyama first proposed in 1978 (Uchiyama M,1978), Jianming Xu put forward a cont l algorithm by using the iterative learning control to improve the contour accuracy (Zhou YS et al., 2011). However, this method is not suitable for cam grinding.
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Abstract. In abrasive belt grinding process for surface of blade, elasticity, deformation and abrasive belt wear are major factors affecting the machining stability, efficiency and quality. In order to improve the grinding process and realize optimal grinding, a new controllable and flexible belt grinding mechanism is designed and assembled in ...
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The grinding and polishing robot system is a system that connects the end effector to the end of the industrial robot through series connection. The end effector is connected by the arm-around method to realize the contact stress control during the grinding and polishing process. The structure of the grinding and polishing robot is shown in ...
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Hits:: Download times:: Abstract:: This paper aims to determine the optimal grinding parameters when minimizing the edge chipping area of the zirconia ceramic exited hole under rotary ultrasonic grinding, and prove the rationality of the strategy of suppressing chipping with auxiliary supported at the bottom of the workpiece, provide theoretical guidance for actual production.
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Grinding wheels come in many different sizes, shapes, and abrasives (Figure 5-7). Some of the various types are listed below. Straight Straight wheels, numbers 1, 5, and 7, are commonly applied to internal, cylindrical, horizontal spindle, surface, tool, and offhand grinding and snagging. The recesses in type
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The present invention is applicable to automation field, and provide a kind of control method and device of the robot for grinding of performing the operation, the method comprises: the CT image obtaining object to be ground and the grinding position information be positioned on described CT image; According to the CT Computer image genration three-dimensional point cloud …
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The high-quality grinding of the aviation blade components with the industry robot presents tremendous challenges because of the complexity of blade surface. The hybrid force/position anti-disturbance control strategy is developed base on fuzzy PID control to improve the quality of grinding aviation blades. Firstly, according to gravity compensation …
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Abstract. Grinding robots have been widely used in industrial manufacturing, but not in the production of large steel pipes. ... In the process of weld bead grinding, the control and adjustment of the motion component at the end can overcome this difficulty by decoupled motion control with high precision, and greatly improve the quality of seam ...
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Abstract. To reduce the grinding trajectory deviation caused by the absolute positioning accuracy of robot, a trajectory compensation method based on Co-Kriging space interpolation method is proposed. Meanwhile, an adaptive iterative constant force control method based on one-dimensional force sensor is proposed to improve the processing ...
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Abstract: In order to solve the problem of contact force control in the process of polishing and deburring, and improve the polishing accuracy, the adaptive impedance control algorithm is adopted to realize the force and position compliance control.
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Abstract: Since the first experiments with computerized expert control of grinding plants in the early 1970's expert control has steadily progressed in the minerals industry to be very advanced, including not only many artificial intelligence methodologies but advanced
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Abstract. The grinding process is a typical complex nonlinear multivariable process with strongly coupling and large time delays. Based on the data-driven modeling theory, the integrated modeling and intelligent control method of grinding process is carried out in the paper, which includes the soft-sensor model of economic and technique indexes, the …
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This paper aims to present a control method to realize the constant force grinding of automobile wheel hub.,A constant force control strategy combined by extended state observer (ESO) and backstepping control is proposed. ESO is used to estimate the total disturbance to improve the anti-interference and stability of the system and Backstepping …
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Abstract. This study evaluated the effect of grinding methods (regular laboratory milling, ultra centrifugal rotor milling, and ball milling) on structural, physicochemical, and functional properties of insoluble dietary fiber (IDF) fraction from orange peel.
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Abstract: In this paper, aiming at the stability control of the cement pre-grinding system, MFAC method is proposed to control the weight of the steady flow bin. First, the pre-grinding process is analyzed to determine the key variables that affect the pre-grinding efficiency; select the feed volume and steady flow bin weight for modeling.
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The purpose of this paper is to propose a robot constant grinding force control algorithm for the impact stage and processing stage of robotic grinding.,The robot constant grinding force control algorithm is based on a grinding model and iterative algorithm. During the impact stage, active disturbance rejection control is used to plan the robotic reference contact …
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Abstract The paper presents an overview of the current methodology and practice in modeling and control of the grinding process in industrial ball mills. Basic kinetic and energy models of the grinding process are described and the most commonly used …
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Abstract. To distinguish with the conventional tooth flank grinding only considering geometric accuracy, an innovative digital twin modeling is proposed for loaded contact pattern based grinding of spiral bevel gears. ... Moreover, an adaptive data-driven material removal decision and control is used for data-driven tooth flank grinding control ...
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The process serves to control the step-by-step feed motion or touch-on motion of a grinding wheel (18) relative to a workpiece (10) or a measuring sensor. In so doing, a sequence of measured values of the power consumption of the rotary drive motor (24) of the grinding wheel (18) is recorded. If a specific sequence of measured current values remains under a certain …
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Abstract In 2009, the survey of Wei and Craig reported qualitatively on the benefits of process control systems in grinding and flotation. The present review of about twenty milling operations reports quantitatively on these benefits. Expert systems, model predictive controller, and fuzzy logic control systems, to name only the most used in the mining industry, have delivered …
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Abstract: The CNC cam grinding contour accuracy is influenced by the complexity of the cam profile and periodic disturbance caused by end effect and friction of the grinding system. In order to enhance the contouring performance, a …
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Abstract. A computerized adaptive control grinding system has been developed. The system is designed to optimize both the grinding and dressing conditions for maximum removal rate subject to ...
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A force control strategy of backstepping + proportion integration differentiation (PID) is proposed. The grinding end effector is installed on the flange of the robot. The robot controls the position and posture of the grinding end actuator and the grinding end actuator controls the grinding force output. First, the modeling and analysis of the ...
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Control of thermal conditions in the grinding zone is possible through effective delivery of substances with cooling, lubricating and antiadhesive properties during the machining process. In addition to the benefits of coolants, however, a number of economic and ecological problems arise, which include the costs of purchase, use and maintenance as well as the …
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Abstract. Low molecular weight polylactic acid (PLA) microparticles containing prostaglandin E 2 were prepared. An average particle size of 30 μm was obtained by grinding at low temperature. These particles were further treated by heating to modify the shape and the release pattern.
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Abstract: The intelligent monitor and control system for grinding process is proposed in this paper, it utilizes the nonlinear modeling theory and self-learning capability of neural network to setup non-liner mapping relations between grinding conditions and AE signals, and to realize grinding process intelligent monitor and control by picking-up grinding AE signals on line.
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CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Abstract—This paper presents a time control grinding and mixing system as an application of fuzzy time control discrete model. The system is designed by keeping in mind a large number of its industrial applications. The proposed simulation design of control system has four inputs: …
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2 White paper | Advanced process control for grinding circuits Abstract Recent copper price evolution pushes modern mining industry even harder to achieve highest production with maximum efficiency. Operations are bound by numerous contractual and environmental conditions that bring a high degree of
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Engineering noise control 249 Figure 10.2. Sound sources should not be placed near corners (ASF, 1977) include rejection of the proposed design. The first step for new installations is to determine the noise criteria for sensitive locations
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A field balancing experiment is carried out on a high-precision computer numerical control gear grinding machine. Experiment results demonstrate that, compared with the commonly used commercial balancing system, the proposed method can not only reduce the residual vibration amplitude at the objective balancing speed effectively but also reduce the …
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Abstract A computerized adaptive control grinding system has been developed. The system is designed to optimize both the grinding and dressing conditions for …
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ABSTRACT Grinding technology has been continuously improving with numerous innovations with a view to improve productivity and reduce power consumption. In order to reduce the manufacturing costs for cement, it is very important to optimise the existing mill installations as far as the grinding process is concerned and also to use high
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