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Measurement of internal residual stress of the laser rapid forming parts by incremental-step hole drilling method
Lai YB(来佑彬); Liu WJ(刘伟军); Zhao YH(赵宇辉); Wang FY(王福雨); Han WC(韩文超)
Department装备制造技术研究室
Conference Name2013 2nd International Conference on Machine Design and Manufacturing Engineering, ICMDME 2013
Conference DateMay 1-2, 2013
Conference PlaceJeju Island, Korea, Republic of
Author of SourceTrans Tech Publications
Source PublicationApplied Mechanics and Materials
PublisherTrans Tech Publications Ltd,
Publication PlaceZurich-Durnten, Switzerland
2013
Pages1011-1016
Indexed ByEI ; CPCI(ISTP)
EI Accession number20134316887819
WOS IDWOS:000334133200204
Contribution Rank1
ISSN1660-9336
ISBN978-3-03785-781-6
KeywordCalibration Industrial Engineering Machine Design Stress Concentration Stress Measurement
AbstractIn order to study the residual stress distribution in the titanium alloy laser rapid forming parts, the incremental-step hole drilling method is improved. Choose a calibration sample which has the same material as the test sample to conduct internal residual stress measurement by incremental-step hole drilling method. Conduct stress-release heat treatment (insulation 4 hours in 750 centigrade, furnace cooling) to the calibration sample before the measurement to uniform the internal stress. Calculate calibration compensation coefficient according to the calibration sample stress measurement result, and use the compensation coefficient to compensate the stress measurement result of the laser rapid forming sample. This method improves the reliability of internal residual stress measurement by incremental-step hole drilling method. Then use this method to measure the stress of laser rapid forming sample. The result shows that both the residual stress in the X direction and the Y direction is larger when the depth ranges from 1 mm to 3 mm. When the depth is greater than 3 mm, the residual stress decreases gradually with the hole depth increasing. The maximum value in the X direction is 147.13 MPa, and the maximum value in the Y direction is 236.32 MPa. © (2013) Trans Tech Pudlications, Switzerland.
Language英语
Citation statistics
Document Type会议论文
Identifierhttp://ir.sia.cn/handle/173321/13830
Collection智能产线与系统研究室
Recommended Citation
GB/T 7714
Lai YB,Liu WJ,Zhao YH,et al. Measurement of internal residual stress of the laser rapid forming parts by incremental-step hole drilling method[C]//Trans Tech Publications. Zurich-Durnten, Switzerland:Trans Tech Publications Ltd,,2013:1011-1016.
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