There are several types of rock engineering in which rock drilling is mainly used. Rock boring is also used many a times, mostly in the nuclear waste, underground mining, and tunneling.
In addition, there are various kinds of rock drilling tools that is used and it comprises of natural gas and oil exploration, construction, mining, and ad on industrial operations that are needed to excavate or drill through the natural rocks, masonry, and concrete.
Several largest markets segment are there that uses WC tools. Rock drilling is different from metal cutting and there is no forming of regular metallic chips during the event of rock drilling. Besides that, the temperature at the cutting edge is regularly much lower compared to the metal cutting.
Rock Drilling –
You can know more details about rock drill bit online. In some exceptional cases, in gas and oil drilling, the compressive strength of the rock formation can very high, and it increases proportionally as the depth of the well also increases. Besides that, the cutting mechanism, which is used in crushing the rock, is mostly done by indentation of the rock.
It is done by the fracture of the rock and crushed debris is removed. One of the things that you will know is that, the rock drilling tools take the benefits of the high compressive strength, high bending strength, high hardness, and moderately high fracture toughness of the WC Co materials.
WC-Co Materials –
No other material that has the same combination of mechanical properties that makes the WC-Co, the only feasible material for industrial operations. There is also failure modes of rock drilling tools and it most of the time includes abrasive wear or breakage.
Application engineers have to work very hard and to avoid the breakage they most of the choose grades with high cobalt content and they choose coarse grains.
This helps them to achieve or get high toughness at the expense of wear resistance. In the development of new grades, a particular trend is used that is of WC co materials. It is used for rock drilling applications that is to use the ultra coarse grains. For more details on the same check out Alibaba Blog.
Rock Drilling, Blasting –
Plus, there is also a level of hardness, where large size grains mostly yield better abrasive wear resistance compared to fine grain grade along with equal hardness. Apart from that, in rock drilling, blasting, grinding crushing, the effective energy is used in rock breakage.
It is found to be pretty small in comparison with maximum input energy. For instance, in rock drilling, it is projected that only 10% of the input energy is used to fracture rock while most of the energy input is wasted as other forms of energy or heat.
Lastly, two concluding remarks that are given – the energy efficiency mentioned in the above operations are very less and next, energy efficiency in drilling, grinding, blasting are different.
Due to the difference in these efficiencies and energy, there can be made change of energy distribution in different operations. In this way, the total cost of energy expenditure can be reduced.
