Microscopic Interactions in Surface Generation Processes Using Abrasive Tools
01 Dec 2017-Journal of Manufacturing Science and Engineering-transactions of The Asme (American Society of Mechanical Engineers)-Vol. 139, Iss: 12, pp 121016
TL;DR: Abrasive finishing is one among several surface generation processes, of which grinding process is a sub-set as mentioned in this paper, and a systematic analysis of these interactions helps to understand the role of both tribological mechanisms and machining interactions in a typical grinding process.
Abstract: Abrasive finishing is one among several surface generation processes, of which grinding process is a sub-set. In a typical grinding process, six different interactions can be identified at the grinding zone resulting in surface generation. Among these six interactions, one is governed by the principles of machining, while the others are governed by the principles of tribology. A systematic analysis of these interactions helps to understand the role of both tribological mechanisms and machining interactions in a typical grinding process. Analysis and study of such microscopic interactions and their time dependent variations also provide an ability to develop a common scientific frame work that can be applied for a wide variety of grinding processes and applications. Such frame work and associated system thinking enables engineers to be capable of addressing the needs to support a wide variety of industries and end user needs at a time of hyper specialization and narrow boundaries that constrain the professionals.
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01 Jan 2016
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Abstract: Thank you for downloading metal cutting principles. Maybe you have knowledge that, people have search numerous times for their chosen readings like this metal cutting principles, but end up in malicious downloads. Rather than reading a good book with a cup of coffee in the afternoon, instead they juggled with some harmful bugs inside their laptop. metal cutting principles is available in our book collection an online access to it is set as public so you can get it instantly. Our book servers saves in multiple locations, allowing you to get the most less latency time to download any of our books like this one. Kindly say, the metal cutting principles is universally compatible with any devices to read.
193 citations
01 Jan 2021
TL;DR: In this article, the emerging rail grinding method using abrasive belt has been proposed to efficiently achieve the required geometric profile and the surface quality of the railhead Although the abrasiv belt was used.
Abstract: Recently, the emerging rail grinding method using abrasive belt has been proposed to efficiently achieve the required geometric profile and the surface quality of the railhead Although the abrasiv
31 citations
TL;DR: In this paper, a contact pressure model was developed to obtain the boundary curve and the stress distribution of the contact zone between the rubber wheel with concave peripheral surface and the rail surface with corrugation.
Abstract: Rail grinding has been widely recognized as an essential measure in routine maintenance of railway network in the world. Compared with other technologies, the emerging abrasive belt grinding process for direct rail maintenance rather than limited polishing finish has shown the convincing potential to improve metal removal rate and surface quality. However, the influencing mechanism of the rubber wheel on contact pressure and metal removal for the corrugated rails is yet unknown. This paper develops a contact pressure model to obtain the boundary curve and the stress distribution of the contact zone between the rubber wheel with concave peripheral surface and the rail surface with corrugation. Based on this, the metal removal model is subsequently established through the abrasive processing theory. Finite element (FE) simulations and grinding tests are finally implemented. Results confirm the above-mentioned theoretical models of contact pressure and metal removal and show the significant influences of the rubber wheel's feature on contact pressure and metal removal.
17 citations
TL;DR: Three areas of manufacturing process control are discussed: control-oriented modeling, sensing and monitoring, and the design and construction of controllers.
Abstract:
Smart manufacturing concepts are being integrated into all areas of manufacturing industries, from the device level (e.g., intelligent sensors) to the efficient coordination of business units. Vital components of any manufacturing enterprise are the processes that transform raw materials into components, assemblies, and finally products. It is the manufacturing process where smart manufacturing is poised to make substantial impact through process control, i.e., the intelligent manipulation of process variables to increase operation productivity and part quality. This article discusses three areas of manufacturing process control: control-oriented modeling, sensing and monitoring, and the design and construction of controllers. The discussion will center around the following manufacturing processes: machining, grinding, forming, joining, and additive. While many other important processes exist, the discussions of control of these mechanical manufacturing processes will form a framework commonly applied to these processes and the discussion will form a framework to provide insights into the modeling, monitoring, and control of manufacturing processes more broadly. Conclusions from these discussions will be drawn, and future research directions in manufacturing process control will be provided. This article acknowledges the contributions of two of the pioneering researchers in this field, Dr. Yoram Koren and Dr. Galip Ulsoy, who have made seminal contributions in manufacturing process control and continued to build the body of knowledge over the course of many decades.
17 citations
01 Jul 2020
TL;DR: A review of the current grinding theories and the methods employed to understand microscopic interactions due to cutting, plowing and sliding motions and how they can be used to develop new products using materials science principles that enhance and uniquely describe the removal of material in ultraprecision machining processes is given in this paper.
Abstract: Traditional approaches to understanding ultraprecision machining processes such as grinding, polishing, lapping, micromachining, machining, etc., have focused on developing analytical, semi-empirical and empirical models that seek to explain the output of processes based on many input variables. However, those models are not very well suited to providing inputs to develop improved abrasive products such as grinding wheels, lapping wheels, honing laps, coated abrasives, loose abrasives and their associated bonding systems and lubricants. In order to develop new products to improve ultraprecision processing of materials, it is necessary to focus on the mechanisms of microscopic interactions between abrasive products and the workpiece material. This paper reviews the current grinding theories and the methods employed to understand microscopic interactions due to cutting, plowing and sliding motions and how they can be used to develop new products using materials science principles that enhance and uniquely describe the removal of material in ultraprecision machining processes.
9 citations
Cites background or methods from "Microscopic Interactions in Surface..."
...10 Power as a function of MRR before and after the dressing of two alumina grits using a diamond dressing tool [1]....
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...The effects of dressing on the degradation of abrasive grit and bonding system is also not well documented in the literature and this is also an area of research that is needed to understand the degradation of abrasive grits Table 4 Threshold power, Pth, and the specific cutting energy (SCE) for white and brown fused alumina grits [1]....
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...9 Power as a function of grinding time for one grinding cycle: a prior to dressing with diamond and b post dressing with diamond [1]....
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...A number of studies have been conducted by Subramanian et alia [1] based on the development of abrasive products by Saint-Gobain Corporation have been developed and used as training aids for students of grinding science....
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References
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Book•
15 Mar 1960
TL;DR: In this paper, the authors describe typical cutting operations, including: Elastic Behaviour Plastic Behaviour Fracture Dynamometry Shear Strain in Cutting Shear Stress in Cutting Friction Wear and Tool Life Cutting Temperatures Cutting Fields Tool Materials Work Material Considerations Complex Tools Surface Integrity Chip Control Optimisation Modeling of Chip Formation Precision Engineering Unusual Applications of the Metal Cutting Process
Abstract: Table of Contents Preface Symbols Introduction Typical Cutting Operations Mechanics of Steady State Elastic Behaviour Plastic Behaviour Fracture Dynamometry Shear Strain in Cutting Shear Stress in Cutting Friction Wear and Tool Life Cutting Temperatures Cutting Fields Tool Materials Work Material Considerations Complex Tools Surface Integrity Chip Control Optimisation Modeling of Chip Formation Precision Engineering Unusual Applications of the Metal Cutting Process
2,229 citations
Book•
01 Jan 1989
TL;DR: In this paper, the authors present a critical and unified picture of the grinding process and how its use brings part quality in harmony with customer expectations, as well as a shop-floor reference.
Abstract: This comprehensive, self-contained work brings to the reader what is known to date about grinding and how that knowledge can be translated into exceptional precision in part manufacturing. Structured to educate as well as serve as a shop-floor reference, the book bridges the gap between theory and application, presenting a critical and unified picture of the grinding process and how its use brings part quality in harmony with customer expectations.
1,711 citations
"Microscopic Interactions in Surface..." refers background in this paper
...This sequence is often referred to as ‘Grinding cycle’ [7]....
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TL;DR: An analysis of the chip geometry and the force system found in the case of orthogonal cutting accompanied by a type 2 chip has yielded a collection of useful equations which make possible the study of actual machining operations in terms of basic mechanical quantities as mentioned in this paper.
Abstract: An analysis of the chip geometry and the force system found in the case of orthogonal cutting accompanied by a type 2 chip has yielded a collection of useful equations which make possible the study of actual machining operations in terms of basic mechanical quantities. The shearing strain undergone by the metal during chip formation, and the velocities of shear and of chip flow are among the geometrical quantities which can be quantitatively determined. The force relationships permit calculation of such quantities as the various significant force components, stresses, the coefficient of friction between chip and cutting tool, and the work done in shearing the metal and in overcoming friction on the tool face. The experimental methods by which such analyses can be readily made are described. Observed and calculated values from typical tests are presented.
1,152 citations
"Microscopic Interactions in Surface..." refers background in this paper
...1, the ideal machining process is generally described through the well identified Merchant’s model for machining (Figure 7) [10]....
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Book•
11 Mar 1999
TL;DR: In this paper, the authors present a characterization of the structure and properties of solids, including friction and wear screening test methods, and their applications in the field of micro/notribology.
Abstract: Structure and Properties of Solids. Solid Surface Characterization. Contact Between Solid Surfaces. Adhesion. Friction. Interface Temperature of Sliding Surfaces. Wear. Fluid Film Lubrication. Boundary Lubrication and Lubricants. Micro/Nanotribology. Friction and Wear Screening Test Methods. Bulk Materials, Coatings, and Surface Treatments for Tribology. Tribological Components and Applications. Problems. Appendix. Index.
878 citations