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- Higher education in Afghanistan
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Abstract: In the modern world, communications representing pipelines with various lengths, sections and axis shapes are widely used, for example, pipelines for supplying and discharging water, oil, gas, etc. The total length of pipelines is millions of kilometers, therefore, issues of efficient operation and services are relevant.
The main task to reduce environmental pollution and increase the profitability of oil fields is to extract unstable and stable hydrocarbons from associated petroleum gas. In this case, it is possible to obtain a liquid fraction, which can be transported by mobile transport.
The paper deals with the question of modeling of the drill mandrel with the shock absorber connected to the mandrel using a viscoelastic clutch. A mathematical model of drill mandrel vibration, machine support and inertia (damper) in the form of a differential equation system has been developed.
Takumi’s U series of 5-axis machining centers are consistently designed to meet mold and die requirements as well as enable fast and precise machining of workpieces with high surface quality.
Takumi’s U series of 5-axis machining centers are consistently designed to meet mold and die requirements as well as enable fast and precise machining of workpieces with high surface quality.
Boehlerit, Austrian development pioneer for cutting materials made from carbide, is creating a strong impulse for the aluminium sector. At the EMO in Hanover, the Kapfenberg-based company presented two additions to its existing aluminium programme in the form of the BWN10M and the BCN10M, both of which explore new avenues in terms of grades, systems and indexable insert design.
