Results 161 to 170 of about 141,733 (202)

A Silent Microwave Drill for Deep Holes in Concrete

IEEE Transactions on Microwave Theory and Techniques, 2018
This paper presents a mechanically assisted microwave drill (MWD) capable of drilling 26-cm-deep 12-mm-diameter holes in concrete. This record significantly extends the inherent $\lambda $ /4-depth capability (~1.5 cm at 2.45 GHz) of the basic MWD scheme.
Eli Jerby, Yuri Nerovny, Yehuda Meir, Or Korin, Ron Peleg, Yariv Shamir   +5 more
openaire   +1 more source

Chip formation simulation and analysis of the mechanical loads during micro single-lip deep hole drilling of Inconel 718 with varying cooling lubricant pressure

Production Engineering, 2021
Ekrem Oezkaya, S. Michel, D. Biermann
semanticscholar   +1 more source

The effective control of a deep hole diamond drill

Conference Record of the 1991 IEEE Industry Applications Society Annual Meeting, 2002
In the gold exploration drilling industry, time-dependent costs have become the major proportion of the total costs per meter drilled. Therefore, bit performance in terms of penetration rate and life has become extremely important. The author describes the application of a control system for controlling the parameters which determine the performance of
openaire   +1 more source

Condition monitoring of deep-hole drilling process based on improved empirical wavelet de-noising and high multiple frequency components of rotation frequency

The International Journal of Advanced Manufacturing Technology, 2021
Yue Si, Zhousuo Zhang, Lingfei Kong, Jianming Zheng   +3 more
semanticscholar   +1 more source

Optimized drilling of deep holes

Soviet Mining Science, 1966
R. M. Éigeles, R. V. Strekalova
openaire   +1 more source

Why Drill Deep Holes in Precambrian Basement?

1988
The subject of this section of the conference program is the outlook for the future. Previous speakers have presented new and exciting ideas for future scientific investigations of the continental basement. My paper concerns a different, but also important question for our future—namely, how deep drilling for largely scientific rather than applied ...
openaire   +1 more source

DEEP-HOLE DRILLING IN THE MANUFACTURE OF VKF LAUNCHERS

1966
Abstract : Every effort has been exerted to maintain the highest level of quality in the manufacture of hypervelocity launcher components at VKF. Since the manufacture of these components involves deep-hole drilling, the effect of this operation on the quality of the finished bores was not completely known.
openaire   +1 more source

Modeling and experimental investigation of drilling force for low-frequency axial vibration-assisted BTA deep hole drilling

The International Journal of Advanced Manufacturing Technology, 2020
Xubo Li, Jian-ming Zheng, Yan Li, Jiming Xiao, B. Guo, Chiate Liu   +5 more
semanticscholar   +1 more source

Vibration-assisted deep hole drilling of the aluminum material AlMgSi0.5

CIRP Journal of Manufacturing Science and Technology, 2022
Bernhard Karpuschewski
exaly  

Robot Cell that Allows Deep Hole Drilling

Machinery
Ott-Jakob Spanntechnik has been supplied a robot cell that allows deep hole drilling to be automated and is reaping the benefits of the move
openaire   +1 more source