Results 111 to 120 of about 922,436 (391)
CONTRIBUTIONS TO THE STUDY OF THE VIBRATIONS FREQUENCY OF THE DRILL TOOL IN THE PROCESS OF MANUFACTURING THE BRONZE MATERIALS [PDF]
Fiabilitate şi Durabilitate, 2013 In this paper we present the experimental testings used to study the vibration of the drill tool, during the drilling of the bronze products. We have used the experimental setup presented in Miriţoiu (2013)[1].
Cosmin-Mihai MIRIŢOIU +4 more
doaj
, 2009 In the oil and gas industry, an underreamer is a tool used to extend and enlarge the diameter of a previously-drilled bore. The problem proposed to the Study Group is to obtain appropriate mathematical models of underreamer dynamics, in forms that will ...
Barton, David +8 more
core
Advanced Engineering Materials, EarlyView.Herein, the electroplating of titanium from an organic solvent, ethaline, is shown. Polymer additives are shown to smooth the roughness of the film, and small molecule additives are shown to produce a near‐mirror finish to the deposited metal. Titanium electroreduction is desired for a variety of medical, electronic, and bonding applications but has ...
Steven Livers +7 more
wiley +1 more source
EXPERIMENTAL MONTAGE USED TO STUDY THE VIBRATION OF THE DRILL TOOL IN THE PROCESS OF MANUFACTURING THE BRONZE MATERIALS [PDF]
Fiabilitate şi Durabilitate, 2013 In this paper we present the experimental setup used to study the vibration of the drill tool, during the drilling of the bronze products. In this paper the vibrations are analyzed during the drilling on the universal lathe machines.
Cosmin-Mihai MIRIŢOIU +4 more
doaj
AGNI-DRILL - A COMPLEX DRILLING FLUID FOR DRILLING IN KYNOVSK MUDSTONES
Oil and Gas Studies, 2016 Oil pools developed by PJSC «Tatneft» are mainly confined to the Devonian deposits, the top of which is represented by Kynovsk argillites. The construction of a horizontal wellbore in the Upper Devonian terrigenous strata (D0) is complicated by the geological structure of this complex, which leads to complications related with maintaining aborehole ...
S. I. Golyb, R. A. Usmanov, L. B. Huzina
openaire +3 more sources
Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.Protonic ceramic fuel cells offer a promising route to generate power efficiently but face critical challenges in achieving industrially viable activity and stability at their cathodes in CO2‐containing air. This report proposes a new cathode material design strategy to enable the cathode to be both catalytically active and CO2 tolerant through the ...
Desheng Feng +14 more
wiley +1 more source
Intensive Weighting of Petroleum Drilling Muds with Galena [PDF]
, 1938 Henry Emmitt Gross
openalex +1 more source
Universal router concept [PDF]
, 1970 Portable universal router can cut holes of large diameter and irregular shapes, machine recesses, and drill holes with certain edge-distance limitations.
Pesch, W. A.
core +1 more source
Thermal Evaluation of Bone Drilling: Assessing Drill Bits and Sequential Drilling
BioengineeringSequential drilling is a common practice in dental implant surgery aimed at minimizing thermal damage to bone. This study evaluates the thermal effects of sequential drilling and assesses modifications to drilling protocols to manage heat generation.
Sihana Rugova, Marcus Abboud
openaire +3 more sources
Experimental Analysis of the Influence of Drill Point Angle and Wear on the Drilling of Woven CFRPs
Materials, 2014 This paper focuses on the effect of the drill geometry on the drilling of woven Carbon Fiber Reinforced Polymer composite (CFRPs). Although different geometrical effects can be considered in drilling CFRPs, the present work focuses on the influence of ...
N. Feito +4 more
semanticscholar +1 more source