Experimental study on the reliability and the precision
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 …
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Development of grinding intelligent monitoring and big …
Grinding has been extensively applied to meet the urgent need for tight tolerance and high productivity in manufacturing industries. However, grinding parameter settings and process control still depend on skilled workers' engineering experience. The process stability in complicated non-uniform wear can't be guaranteed. Moreover, it is …
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A decision support methodology for integrated machining process …
This paper presents a systematic methodology to enable environmental sustainability and productivity performance assessment for integrated process and operation plans at the machine cell level of a manufacturing system. This approach determines optimal process and operation plans from a range of possible alternatives …
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(PDF) Development of Real-time Grinding Process …
Development of Real-time Grinding Process Monitoring and Analysis System. International Journal of Precision Engineering and Manufacturing. DOI: Authors: …
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A review of surface quality control technology for robotic …
Meanwhile, Huang et al. [5] proposed an adaptive trajectory planning method based on machining accuracy control, and optimized the size of the contact wheel to avoid local interference between the contact wheel and the work-piece. In the process of robot grinding and polishing, the tool path points are usually divided according to the curvature ...
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A Robotic grinding station based on an industrial …
Due to ever increasing precision and automation demands in robotic grinding, the automatic and robust robotic grinding workstation has become a research hot-spot. This work proposes a grinding workstation constituting of machine vision and an industrial manipulator to solve the difficulty of positioning rough metal cast objects and …
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Trajectory planning method with grinding compensation …
The remaining thickness material will be removed in the subsequent grinding compensation process. Fig. 15(a, b, and c) demonstrates the grinding process using the 6-DOF industrial robot at the beginning, middle, and final stages of the planned grinding trajectory for sharpening one of the propeller. Conclusion and future work
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Modelling and simulation of process: machine …
A process model for grinding describes the complex relationship between process and machine parameters, and work results. The interaction is modelled by …
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9 Types of Machining Processes
There are many types of machining processes. This article looks at the machine processes of turning, drilling, milling, grinding, planning, sawing, broaching, electrical discharge machining, and electro chemical machining. 1. Turning. Turning is a machining method that uses a lathe to rotate the metal while a cutting tool moves linearly …
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AND CONTROL FOR GRINDING MACHINES
solution involves the real time control of machining variables and conditions. The control of deviations from the preset process allows optimisation of grinding productivity. …
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analysis work time and process planning for grinding machines
ANALYSIS OF PROCESS PARAMETERS FOR A SURFACE . or to control the grinding process, it is necessary to quantify surface roughness, which is one of the most critical quality constraints for the selection of grinding factors in a process planning. The process set-up often depends on the operator competence1.
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A study on intelligent grinding systems with industrial
The growth phase of intelligent grinding system has been grouped into four major phases which are the following: (i) Grinding process monitoring and application of fuzzy logics on grinding process monitoring. (ii) Acoustics-sensor-based grinding process monitoring and statistical computation of wheel-work process parameters for …
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Time-varying isobaric surface reconstruction and path planning …
Section snippets Deformation analysis of workpieces while grinding. General grinding process aims to get uniform removals. According to the Preston equation, the removal quantity r is determined by r = ∫ t 1 t 2 k p v A d t where the coefficient k depends on the technological factors, p denotes the contact pressure, A denotes the contact area and …
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Investigation of cycle time behavior in the robotic grinding process
The paper presents an analysis of the effects of robot compliance and grinding parameters on the cycle time of a precision grinding process. Specifically, a process model for robot-workpiece interaction and grinding process cycle time is developed. This model is used to analyze the behavior of a face grinding process cycle.
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The Design of an Infeed Cylindrical Grinding Cycle
The grinding system analysis derived a factor referred to as "grinding time constant" that governs the transient behaviors of process parameters such as forces and machine deflection. The process parameters used during the infeed cycle (including spark-out grinding) were investigated and the formulas required for the cycle design were ...
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Optimization of the SAG Grinding Process Using …
In the search to improve the efficiency in the use of resources, the present work develops models of a semi-autogenous grinding (SAG) mill using statistical …
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Self-optimizing process planning of multi-step polishing …
Self-optimizing process planning is an essential approach for finding optimum process parameters and reducing ramp-up times in machining processes. For this purpose, polishing is presented as an application example. In conventional polishing processes, the process parameters are selected according to the operator's expertise in …
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Grinding/Cutting Technology and Equipment of Multi-scale …
The foundry industry is a pillar industry of aerospace, automobile, shipbuilding, construction machinery, and equipment manufacturing. The casting process has the characteristics of low cost, one-time molding, and strong flexibility [].It has unique advantages in manufacturing important functional parts, especially those with complex …
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(PDF) Machining Processes and Machines: …
This textbook covers the fundamentals and engineering analysis of both conventional and advanced/non-traditional material removal processes along with gear …
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14 Types of Grinding Machines [Working, Diagram & PDF]
Centreless grinder. Surface grinder. Universal grinder. Tools and cutting grinder. 1. Bench Grinder. These types of grinding machines are fixed on a workbench or table. Gear or pulley is fitted in it. For rotating the big …
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Cement plant performance optimization Benchmarking, …
Cement process analysis, diagnostics and optimization Starting point: Advanced process control portfolio in cement ABB has extensive cement process know-how acquired through decades of collaboration with leading customers of this industry. In particular, process optimization has been one area where ABB has excelled with hundreds of kilns, mills and
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Job Hazard Analysis
involve your employees in the hazard analysis process. They have a unique understanding of the job, and this knowledge is invaluable for finding hazards. Involving employees will help minimize oversights, ensure a quality analysis, and get workers to "buy in" to the solutions because they will share ownership in their safety and health ...
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Lecture 8. Metal Cutting
flow, either by manual grinding using shaped grinding tools, or by electro-grinding. (b) The internal surface of the cylinders of a car engine are turned on a lathe. The surface is then made smooth by grinding, followed by honing and lapping to get an extremely good, mirror-like finish. (c) Sand-paper is used to smooth a rough cut piece of wood. 2.
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Chapter 17: Grinding Methods and Machines
Special types of grinders are grinding machines made for specific types of work and operations, for example: Tool and cutter grinders. These grinding machines are designed to sharpen milling cutters, reamers, taps and other machine tool cutters. The general-purpose cutter grinder is the most popular and versatile tool-grinding machine.
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A novel toolpath for 7-NC grinding of blades with force …
The characteristic of uneven machining allowance of blades and the flexible contact properties of the belt grinding makes the traditional toolpath of the grinding tool difficult to precisely control the machining profile. In this paper, a novel toolpath planning method based on force-position matching is proposed to perform an efficient grinding …
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Machining Processes and Machine Tools | bartleby
Machining is represented as the process in which an excessive amount of substance is eliminated from the particular element in the form of pieces. In machining, cutting tools such as rotary tools, lathe, drill press, grinder, chop saw, welders, and many more are applied to get the desired shape. As compared to other manufacturing processes ...
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Unit – 5 Process Planning
and specifying processes, machine tools and other equipment to convert raw material into finished and assembled products. Purpose of process planning: The purpose of process planning is to determine and describe the best process for each job so that: 1. Specific requirements are established for which machines, tools, and other equipment can
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Energy consumption model and energy efficiency …
The energy consumption of CNC continuous generating grinding machine tools is closely related to operation time, machining parameters, the number of work pieces and the structure of machine tools. However, only the instantaneous power consumption and the total energy consumption were considered, it could not reflect the real energy utilisation ...
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Development of Real-time Grinding Process Monitoring …
monitoring of the grinding stage becomes necessary which will make a room for better production planning and avoidance of failure occurrence. Conventionally the quality is dependent on the machine ...
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Development of grinding intelligent monitoring and …
In general, the developed diagnosis control module for grinding burn prediction is quite practical in manufacturing industries. If grinding burn can be avoided …
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