Characterization of Sheet Metal Forming Using Acoustic EmissionSource: Journal of Engineering Materials and Technology:;1990:;volume( 112 ):;issue: 001::page 44DOI: 10.1115/1.2903185Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The application of acoustic emission signal analysis for characterization of sheet metal forming operations is discussed in this paper. Two particular sheet metal forming operations are examined: punch stretching and deep drawing. The acoustic emission signal characteristics, including the energy content, the spectral properties, and time series behaviors, as functions of the process state, are experimentally studied. Using plastic work analysis, an analytical relationship between acoustic emission energy rate and punch stretching parameters (punch feed rate, workpiece thickness, punch size, holder diameter, amount of plastic deformation, and workpiece material properties) is developed and supporting experimental results presented. During the forming processes, acoustic emission signal features show strong correlations with punch/workpiece contact, yielding, deformation, flange wrinkling, necking and fracture. Therefore, acoustic emission can be effectively used for in-process monitoring of sheet metal forming operations.
keyword(s): Acoustic emissions , Sheet metal work , Signals , Deformation , Thickness , Time series , Flanges , Materials properties , Fracture (Process) , Functions AND Necking ,
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contributor author | S. Y. Liang | |
contributor author | D. A. Dornfeld | |
date accessioned | 2017-05-08T23:32:50Z | |
date available | 2017-05-08T23:32:50Z | |
date copyright | January, 1990 | |
date issued | 1990 | |
identifier issn | 0094-4289 | |
identifier other | JEMTA8-26932#44_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/107033 | |
description abstract | The application of acoustic emission signal analysis for characterization of sheet metal forming operations is discussed in this paper. Two particular sheet metal forming operations are examined: punch stretching and deep drawing. The acoustic emission signal characteristics, including the energy content, the spectral properties, and time series behaviors, as functions of the process state, are experimentally studied. Using plastic work analysis, an analytical relationship between acoustic emission energy rate and punch stretching parameters (punch feed rate, workpiece thickness, punch size, holder diameter, amount of plastic deformation, and workpiece material properties) is developed and supporting experimental results presented. During the forming processes, acoustic emission signal features show strong correlations with punch/workpiece contact, yielding, deformation, flange wrinkling, necking and fracture. Therefore, acoustic emission can be effectively used for in-process monitoring of sheet metal forming operations. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Characterization of Sheet Metal Forming Using Acoustic Emission | |
type | Journal Paper | |
journal volume | 112 | |
journal issue | 1 | |
journal title | Journal of Engineering Materials and Technology | |
identifier doi | 10.1115/1.2903185 | |
journal fristpage | 44 | |
journal lastpage | 51 | |
identifier eissn | 1528-8889 | |
keywords | Acoustic emissions | |
keywords | Sheet metal work | |
keywords | Signals | |
keywords | Deformation | |
keywords | Thickness | |
keywords | Time series | |
keywords | Flanges | |
keywords | Materials properties | |
keywords | Fracture (Process) | |
keywords | Functions AND Necking | |
tree | Journal of Engineering Materials and Technology:;1990:;volume( 112 ):;issue: 001 | |
contenttype | Fulltext |