Journal ArticleDOI
Theoretical Analysis of Thermal Stresses in Electro-discharge Diamond Grinding
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TLDR
In this article, a finite element model has been developed to estimate thermal stresses during EDDG when the current is switched off, and the effects of time of grinding and feed on thermal stress distribution have been reported.Abstract:
Excessive heat generated at the machining zone, during Electro-discharge diamond grinding (EDDG), is the major cause of thermal stresses, untempered martensite, overtempered martensite, and cracks. Therefore, the key to achieve good surface integrity in a machined part is to prevent excessive temperature and thermal stresses generated during machining process. A finite element model has been developed to estimate thermal stresses during EDDG when the current is switched-off. First, the developed code calculates the temperature in the workpiece and then the thermal stress field is estimated using this temperature field. Computations were carried out in plane strain condition for different down feeds of the grinding wheel. The effects of time of grinding and feed on thermal stress distribution have been reported. The thermal stresses are found to be higher near top surface at initial time of grinding but shifted away towards bottom after some grinding time.read more
Citations
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Book ChapterDOI
Introduction to the Finite Element Method
Nathan Ida,João P. A. Bastos +1 more
TL;DR: This chapter introduces the finite element method (FEM) as a tool for solution of classical electromagnetic problems and discusses the main points in the application to electromagnetic design, including formulation and implementation.
Journal ArticleDOI
Electrical discharge machining–based hybrid machining processes: A review
TL;DR: In this paper, the mechanism of electrical discharge machining has been combined with the mechanisms of one or more other machining/physical/chemical processes to constitute the hybrid machining process.
Journal ArticleDOI
Modeling of material removal rate in electric discharge grinding process
M. K. Satyarthi,Pulak M. Pandey +1 more
TL;DR: In this paper, the authors proposed a mathematical model based on the fundamental principles of material removal in electric discharge machining (EDM) and conventional grinding processes to predict the material removal rate (MRR).
Journal ArticleDOI
Three dimensional thermal finite element simulation of electro-discharge diamond surface grinding
P. S. Balaji,Vinod Yadava +1 more
TL;DR: The development of a simulation model to simulate the complex EDDSG process which consists of simulation of each constituent process namely EDM and surface grinding for temperature and thermal stress distribution and the three dimensional FEM is used in the process of development of the model accounting the random occurrence of the spark during EDM.
Journal ArticleDOI
Multi-spark numerical simulation of the micro-EDM process: an extension of a single-spark numerical study
TL;DR: In this paper, the authors proposed an improved concept of occurrence of sparks based on a minimum inter-electrode gap presented by the randomly assigned surface roughness to the tool and workpiece electrodes.
References
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Book
An Introduction to the Finite Element Method
TL;DR: Second-order Differential Equations in One Dimension: Finite Element Models (FEM) as discussed by the authors is a generalization of the second-order differential equation in two dimensions.
Book
Theory of thermal stresses
TL;DR: Theory of thermal stresses, Theory of Thermal Stresses, this paper, Theory of thermal stress, and thermal stresses theory, thermal stresses and thermal stress theory in literature, 2015.
Book ChapterDOI
Introduction to the Finite Element Method
Nathan Ida,João P. A. Bastos +1 more
TL;DR: This chapter introduces the finite element method (FEM) as a tool for solution of classical electromagnetic problems and discusses the main points in the application to electromagnetic design, including formulation and implementation.
Book
Grinding Technology: Theory and Applications of Machining with Abrasives
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.
Book
Principles of Abrasive Processing
TL;DR: In this article, the authors describe a single-grit single-grinding tools and abrasive cut-off for form-and-finish grinding of slabs and billets.
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