In the process of machining titanium alloy, the titanium alloy material itself has low modulus of elasticity, large elastic deformation, high cutting temperature, low thermal conductivity and high chemical activity at high temperature, which makes the sticky knife phenomenon serious, easily aggravating the tool wear and even breakage, which leads to the poor machinability of the titanium alloy. Therefore, machining titanium alloy requires proper cutting tools and good machining technology. Machining Titanium,Titanium Machining Parts,Titanium Cnc Turning Machining Parts Hong Kong RYH CO., LTD , https://www.szcncmilling.com
This method not only deals with the empty area of ​​the open field method, but also creates favorable conditions for the return of the mining column and improves the ore recovery rate.
Supporting the surrounding rock with filling material can slow or prevent the deformation of the surrounding rock to maintain its relative stability, because the filling material can exert lateral force on the pillar and help to increase its strength.
After mining in the mine, the filling material (waste rock, tailings, etc.) can be used to fill the mine and return to the mining column.