Results 261 to 270 of about 517,779 (310)
Some of the next articles are maybe not open access.
1994
The production of a hole in a mechanical component is usually done by using a drill. Although drilling a hole appears to be a simple operation, the accurate drilling of a hole of the right size at the right location, can be difficult. A large number of tools and machines have been designed for the drilling of holes economically, accurately, and quickly,
openaire +1 more source
The production of a hole in a mechanical component is usually done by using a drill. Although drilling a hole appears to be a simple operation, the accurate drilling of a hole of the right size at the right location, can be difficult. A large number of tools and machines have been designed for the drilling of holes economically, accurately, and quickly,
openaire +1 more source
Development of intelligent drilling and intelligent drill tools
2011 6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, 2011This paper introduces the principles and techniques of intelligent drilling which can be considered as a computer intelligent expert system with intelligent drill tools and information network system as the key technologies. In this paper, we have discussed the key technology of how to combine power transmission and high speed bidirectional information
Ronghua Yu, PengBin Yuan
openaire +1 more source
Drilling Holes with the Bow-Drill
Technology and Culture, 1970miliar to most carpenters and joiners in Britain, which appears to corroborate the authors' analysis of the action of the ancient Egyptian stone-boring tool. Fitted preferably with a rosehead countersink bit, it is also used one-handed for countersinking. The rotation is started by tilting the brace, thus making use of the gravity couple similar to the
openaire +1 more source
In 2025, President Trump said in his inauguration speech at the US Capitol that we will “drill, baby, drill.” This remark was the beginning of the US retreat from the clean energy transition and the revival of US fossil fuel energy production and consumption.
openaire +1 more source
openaire +1 more source
British Dental Journal, 1997
It is now widely recognised that dentistry based mainly on the restoration of teeth has failed to deliver dental health to our patients. There is an urgent need for GDPs to face up to the full implications of this failure and implement a truly preventive practice philosophy. We must also recognise the particular plight of our patients with very heavily
openaire +2 more sources
It is now widely recognised that dentistry based mainly on the restoration of teeth has failed to deliver dental health to our patients. There is an urgent need for GDPs to face up to the full implications of this failure and implement a truly preventive practice philosophy. We must also recognise the particular plight of our patients with very heavily
openaire +2 more sources
DRILL AND CHUCKING DEVICE FOR A DRILL
2008The invention relates to a chucking device (4) for a drill, wherein a chucking recess (14), surrounded by a side wall (17) and having a recess opening (21), is provided in the chucking device (4) for chucking an armature (9). In order to chuck an armature in the chucking device such that a relative displacement, and thus friction, is prevented between ...
FISCHERWERKE GMBH & CO KG, HAUG WILLI
openaire +1 more source
Similarity evaluation of stratum anti-drilling ability and a new method of drill bit selection
Petroleum Exploration and Development, 2021Tie Yan, Zhaokai Hou
exaly