Zobrazeno 1 - 10
of 3 871
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
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
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
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:
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:
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
Publikováno v:
Metals, Vol 14, Iss 6, p 683 (2024)
The performance properties of various types of parts are predominantly determined by the subsurface layer forming methods of these parts. In this regard, cutting processes, which are the final stage in the manufacturing process of these parts and, of
Externí odkaz:
https://doaj.org/article/21dadf3176e040b0b1c9c6761f602c65
Autor:
Masato OKADA, Yoshito HIRATA, Hidehito WATANABE, Masahide WATANABE, Makoto NIKAWA, Naoto KANEDA
Publikováno v:
Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol 18, Iss 1, Pp JAMDSM0003-JAMDSM0003 (2024)
The drilling characteristics of alumina ceramics during through-hole drilling with a diamond-coated carbide drill were investigated experimentally. The drilling characteristics were evaluated by cutting edge behavior, cutting force (thrust force and
Externí odkaz:
https://doaj.org/article/e7b794bbc9ca4a16bf6e4bbc6493245e