التفاصيل البيبلوغرافية
| العنوان: |
Prediction of Residual Stresses in Components Using the Contour Method |
| المؤلفون: |
Werke, Mats, Ottosson, Peter, Semere, Daniel, Yacob, Filmon |
| المصدر: |
Advances in Transdisciplinary Engineering. :159-169 |
| مصطلحات موضوعية: |
Complex geometries, Contour method, machining distortions, Residual stress prediction, 3D modeling, 3D printers, Casting, Electric discharge machining, Electric discharges, Forecasting, Geometry, Three dimensional computer graphics, Bulk stress, Dimensional accuracy, Geometry errors, Machining distortion, Process steps, Shape forming, Stress-induced, Residual stresses |
| الوصف: |
During machining the accumulated bulk stresses induced by previous shape forming process steps, such as forging, casting or additive manufacturing and subsequent heat treatment, will be released and cause undesirable geometry errors on the final component. By considering the residual stresses during process planning a significant improvement in dimensional accuracy can be achieved. This paper presents experiences for prediction of residual stresses for components with complex geometries using the Contour method. Three sectioning procedures have been tested and a cutting strategi using Electric Discharge Machining with slow feed rate and cutting from two sides with final cut in the middle is proposed. Two Finite Element modelling strategies for 3D-models have been tested and a meshing strategy based on extrusion of the geometry from the cut plane is recommended. Further, a procedure to automate the Finite Element meshing of complex structures using the Alpha Shape algorithm is proposed. The ambition is to integrate this algorithm in procedures for automatization of the entire analysis. © 2022 The authors |
| وصف الملف: |
print |
| URL الوصول: |
https://urn.kb.se/resolve?urn=urn:nbn:se:ri:diva-59850
https://doi.org/10.3233/ATDE220135 |
| قاعدة البيانات: |
SwePub |
