Key technologies of drilling process with raise boring method

Brain technologies raise unprecedented ethical challenges.

a caricature of science that I do not recognize. Why do social scientists find science so difficult to fathom? In my experience, most working scientists have a much better appreciation of the power — and the limitations — of the scientific method than Collins is prepared to allow. Most have a robust understanding of Karl Popper's idea of falsification, of the impact of experimental error and th...

Optimization of 6061T6 CNC Boring Process Using the Taguchi Method and Grey Relational Analysis

This study investigated the optimization of computer numerical control (CNC) boring operation parameters for aluminum alloy 6061T6 using the grey relational analysis (GRA) method. Nine experimental runs based on an orthogonal array of Taguchi method were performed. The surface properties of roughness average and roughness maximum as well as the roundness were selected as the quality targets. An...

Machine Tool Design and Static Behaviour Analisys Case of Study for a Drilling and Boring Machine

1. SOLID MODEL The main aim of the 3D design is to obtain a system that is very close to the real model considering the imposed functional conditions. In the machine tool design the parts are calculated for a proper strength and the stress level in each part is imposed to do not exceed material accepted values. A machine tool, particularly one that is used for drilling and boring processes (Fig...

Acoustic identification of rocks during drilling process

Drilling into a rock massif is energetically extremely consumptive process. Hence the optimization of drilling regime with objective of energy consumption minimization, is very important. Proposed article discusses partial problem of this problem. During the drilling process it is useful to know the drilled rock type, whereas to particular drilled rock needs convenient drilling regime, which is...

Application of Proteomics Technologies in the Drug Development Process