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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)
作者部门装备制造技术研究室
会议名称2013 2nd International Conference on Machine Design and Manufacturing Engineering, ICMDME 2013
会议日期May 1-2, 2013
会议地点Jeju Island, Korea, Republic of
会议主办者Trans Tech Publications
会议录名称Applied Mechanics and Materials
出版者Trans Tech Publications Ltd,
出版地Zurich-Durnten, Switzerland
2013
页码1011-1016
收录类别EI ; CPCI(ISTP)
EI收录号20134316887819
WOS记录号WOS:000334133200204
产权排序1
ISSN号1660-9336
ISBN号978-3-03785-781-6
关键词Calibration Industrial Engineering Machine Design Stress Concentration Stress Measurement
摘要In 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.
语种英语
引用统计
文献类型会议论文
条目标识符http://ir.sia.cn/handle/173321/13830
专题装备制造技术研究室
推荐引用方式
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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