Zobrazeno 1 - 10
of 3 864
pro vyhledávání: '"Hole-drilling"'
Publikováno v:
Petroleum Research, Vol 9, Iss 3, Pp 451-461 (2024)
Over the last 10 years, the China Geological Survey has deployed 137 slim-hole shale gas geological exploration wells for coring entire wellbores. These wells are primarily located in new blocks and geological formations where neighboring well data a
Externí odkaz:
https://doaj.org/article/4296a0c06da54c8c89775efbc7c7496d
Autor:
Sviatoslav Eleonsky, Vladimir Pisarev, Eugene S. Statnik, Alexey I. Salimon, Alexander M. Korsunsky
Publikováno v:
Frattura ed Integrità Strutturale, Vol 18, Iss 69, Pp 192-209 (2024)
The determination of residual stresses by combining blind hole drilling and optical interferometric measurement of relief deformation is re-visited to evaluate its applicability to aerospace structures. The experimental methodology involves drilling
Externí odkaz:
https://doaj.org/article/9b61c52441334d80bcdbd3ffa8bbccfe
Autor:
Sviatoslav Eleonsky, Vladimir Pisarev
Publikováno v:
Fracture and Structural Integrity, Vol 19, Iss 71 (2024)
A new approach has been developed and implemented to determine the main components of residual stresses that arise as a result of the contact interaction of a spherical indenter and a flat surface of composite plate made. The experimental technique i
Externí odkaz:
https://doaj.org/article/a8363c063e6b4e28921e06e96540ae50
Akademický článek
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Publikováno v:
Nuclear Engineering and Technology, Vol 56, Iss 2, Pp 506-519 (2024)
To simulate the verification process using materials from a decommissioned reactor, a mock-up of the bottom-mounted instrument nozzle in the Kori 1 reactor, where the nozzle was attached to a plate by J-groove dissimilar metal welding, was fabricated
Externí odkaz:
https://doaj.org/article/6fffebf608ac4a66ae3a08f0c6e76512
Publikováno v:
Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol 18, Iss 4, Pp JAMDSM0039-JAMDSM0039 (2024)
This study proposes a method for extracting the machining region machined by swarf machining and hole drilling from a Standard Triangulated Language (STL) data exported from 3D CAD and automatically generating a tool path. First, a method is proposed
Externí odkaz:
https://doaj.org/article/90148361352b481e9f1198f3b2cb02e2
Autor:
Naofumi TSUJI, Akira SAKURADA, Kota TAKASHIMA, Keisuke HARA, Hirofumi KAWAMURA, Kazuto MIYAWAKI, Hiromi ISOBE
Publikováno v:
Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol 18, Iss 4, Pp JAMDSM0041-JAMDSM0041 (2024)
This study investigates the effects of ultrasonic vibration-assisted drilling with a 0.3 mm diameter drill on engagement behavior and hole dimensions. The study addresses the increasing demand for small-diameter deep drilling in fuel injectors and me
Externí odkaz:
https://doaj.org/article/e2036299ff3f48d09727879e94efc6c7
Autor:
Xuewen Li, Jiwei Liu, Hao Wu, Kesong Miao, He Wu, Rengeng Li, Chenglu Liu, Wenbin Fang, Guohua Fan
Publikováno v:
Heliyon, Vol 10, Iss 7, Pp e28348- (2024)
Residual stress refers to self-equilibrating stress present within materials, with the potential to significantly affect manufacturing processes and performance. Therefore, accurately and quantitatively measuring residual stress is always of great im
Externí odkaz:
https://doaj.org/article/1bb03653a6a7473d9572ca824ddb510c
Autor:
Jiangning Pei, Shengbao Wang, Songlin Qin, Zhijia Yu, Jianzhong Gao, Jichen Xiao, Zhonglong Li
Publikováno v:
Sensors, Vol 24, Iss 19, p 6243 (2024)
An iterative correction method for the stress release coefficient, leveraging numerical simulation, has been innovatively developed to address the significant error issues associated with the blind-hole method in high-stress residual stress testing o
Externí odkaz:
https://doaj.org/article/ea4103cf3447425c98677c66d083d596
Autor:
Bharani Chandar J, N. Lenin, Siva Kumar, Naveen Kumar Gupta, Alagar Karthick, Rathina Suriyan, Hitesh Panchal, Abhinav Kumar, Anand Patel, Kishor Kumar Sadasivuni
Publikováno v:
Journal of Materials Research and Technology, Vol 26, Iss , Pp 7984-7997 (2023)
Recent breakthroughs in component downsizing and miniaturization emphasise the requirement for deep-hole drilling with an increased aspect ratio, especially in the automobile sector for fuel injectors and the medical sector for manufacturing bone scr
Externí odkaz:
https://doaj.org/article/8e1e1641d8c0434bac6972e51f5fb196