Details
| Original language | English |
|---|---|
| Pages (from-to) | 103-107 |
| Number of pages | 5 |
| Journal | Procedia CIRP |
| Volume | 24 |
| Issue number | C |
| Publication status | Published - 18 Nov 2014 |
| Event | New Production Technologies in Aerospace Industry - Machining Innovations Conference, MIC 2014 - Garbsen, Hannover, Germany Duration: 19 Nov 2014 → 20 Nov 2014 |
Abstract
Structural aircraft components are usually manufactured from rolled plate material. Despite a stress relief treatment residual stress remains in the plates. This can result in distortions of the workpiece after the final manufacturing step, which leads to time-consuming repair processes or even a scrap part. Using an FEM simulation, it is possible to predict distortions caused by residual stress and to avoid them by adjusting the manufacturing process. However, the known methods to determine the residual stress state in plate material are expensive in terms of time and material and require specially trained staff. This paper describes a novel method to measure residual stress in plates with little effort. The method is derived from the well-known Layer-Removal-Method and utilizes a machine tool with a standard probing device. The measuring task is fully automated and can be performed by untrained staff. No special preparation of the specimen is necessary. The paper describes the procedure and the results of residual stress measurement on samples of the material EN AW-7075 T651. The results are in line with values published by other authors.
Keywords
- Layer-removal-method, Residual stresses, Structural components
ASJC Scopus subject areas
- Engineering(all)
- Control and Systems Engineering
- Engineering(all)
- Industrial and Manufacturing Engineering
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In: Procedia CIRP, Vol. 24, No. C, 18.11.2014, p. 103-107.
Research output: Contribution to journal › Conference article › Research › peer review
}
TY - JOUR
T1 - Determination of Residual Stresses in Plate Material by Layer Removal with Machine-integrated Measurement
AU - Dreier, Steven
AU - Denkena, Berend
N1 - Funding information: This work has been funded by the Ministry of Economics, Labour and Transport of Lower Saxony within the framework of research and technology projects for the aviation industry of Lower Saxony through the project “QualiTi: Method for the modeling of effects on the workpiece quality during the milling of titanium”.
PY - 2014/11/18
Y1 - 2014/11/18
N2 - Structural aircraft components are usually manufactured from rolled plate material. Despite a stress relief treatment residual stress remains in the plates. This can result in distortions of the workpiece after the final manufacturing step, which leads to time-consuming repair processes or even a scrap part. Using an FEM simulation, it is possible to predict distortions caused by residual stress and to avoid them by adjusting the manufacturing process. However, the known methods to determine the residual stress state in plate material are expensive in terms of time and material and require specially trained staff. This paper describes a novel method to measure residual stress in plates with little effort. The method is derived from the well-known Layer-Removal-Method and utilizes a machine tool with a standard probing device. The measuring task is fully automated and can be performed by untrained staff. No special preparation of the specimen is necessary. The paper describes the procedure and the results of residual stress measurement on samples of the material EN AW-7075 T651. The results are in line with values published by other authors.
AB - Structural aircraft components are usually manufactured from rolled plate material. Despite a stress relief treatment residual stress remains in the plates. This can result in distortions of the workpiece after the final manufacturing step, which leads to time-consuming repair processes or even a scrap part. Using an FEM simulation, it is possible to predict distortions caused by residual stress and to avoid them by adjusting the manufacturing process. However, the known methods to determine the residual stress state in plate material are expensive in terms of time and material and require specially trained staff. This paper describes a novel method to measure residual stress in plates with little effort. The method is derived from the well-known Layer-Removal-Method and utilizes a machine tool with a standard probing device. The measuring task is fully automated and can be performed by untrained staff. No special preparation of the specimen is necessary. The paper describes the procedure and the results of residual stress measurement on samples of the material EN AW-7075 T651. The results are in line with values published by other authors.
KW - Layer-removal-method
KW - Residual stresses
KW - Structural components
UR - http://www.scopus.com/inward/record.url?scp=84923148373&partnerID=8YFLogxK
U2 - 10.1016/j.procir.2014.07.137
DO - 10.1016/j.procir.2014.07.137
M3 - Conference article
AN - SCOPUS:84923148373
VL - 24
SP - 103
EP - 107
JO - Procedia CIRP
JF - Procedia CIRP
SN - 2212-8271
IS - C
T2 - New Production Technologies in Aerospace Industry - Machining Innovations Conference, MIC 2014
Y2 - 19 November 2014 through 20 November 2014
ER -