Essays about: "Hole Drilling Method"

Showing result 1 - 5 of 13 essays containing the words Hole Drilling Method.

1. 1. Life Cycle Assessment of Borehole Thermal Energy Storage

   University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

   Author : Saga Karlsson; [2022]
   Keywords : ;

   Abstract : Borehole thermal energy storage (BTES) is a technology used to store energy between seasons. It could therefore be a solution to the seasonal mismatch between the use and production of (renewable) energy, which can be used to increase energy efficiency and reduce greenhouse gas emissions. READ MORE

3. 2. Cooling Strategy Influence on Temperature in ETD Center

   University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Author : Oskar Edinger; [2021]
   Keywords : Machining; Drilling; Exchangeable tip drill; 316L Stainless steel; Thermocouple; IR Thermography; Skärande bearbetning; Borrning; Löstoppsborr; 316L Rostfritt stål; Termoelement; IR Termografi;

   Abstract : Striving for increased productivity while maintaining hole quality and high process robustness when drilling requires knowledge about the working principles of heat generation, mechanics and a proper cutting fluid that aids in cooling, lubricating and evacuating chips from the cutting zone. If the heat generated in the tool-workpiece and tool-chip interfaces does not exit the cutting zone adequately through the chips, the workpiece material or the redistribution of coolant the hole quality can be impacted negatively and breakdowns may occur which reduces overall productivity. READ MORE

4. 3. Development of a Method to Measure Residual Stresses in Cast Components with Complex Geometries

   University essay from KTH/Materialvetenskap

   Author : Yang Yang; [2020]
   Keywords : Residual Stresses; Cast Iron; Engine Components; XRD; Ultrasonic; Cutting;

   Abstract : Cast iron, taking the advantages of the advanced castability forming components of complex geometries and favorable mechanical properties, is employed in engine components in truck industries. Compacted graphite iron (CGI) integrates both merits of lamellar graphite iron (LGI) and spheroidal graphite iron (SGI) such as good machinability and high thermal conductivity from LGI, high ultimate tensile strength (UTS), good fatigue resistance, high elastic modulus, and high ductility from SGI, thus is now becoming a competitive alternative of traditional LGI in cylinder blocks and heads. READ MORE

5. 4. Methods to create compressive stress in high strength steel components

   University essay from

   Author : Amir Abdin; Kaveh Feyzabi; Oskar Hellman; Henrietta Nordström; Dilman Rasa; Gustav Thaung Tolförs; Per-Olof Öqvist; [2018]
   Keywords : residual compressive stress; high strength steel; methods of inducing stress; analyzing stress;

   Abstract : Residual compressive stresses can be used to increase the lifetime of parts under cyclic stress as they negate the applied tensile stresses that cause crack initiation and propagation in the material. The goal of this project was to investigate methods to induce stresses, their advantages and disadvantages as well as depth and magnitude of induced stresses, and also to find methods of analyzing the induced residual stresses. READ MORE

6. 5. Evaluation of a Programmable Hydraulic Valve for Drill Rig Applications

   University essay from Linköpings universitet/Fluida och mekatroniska system

   Author : Jonathan de Brun Mangs; Mikael Tillquist; [2018]
   Keywords : Hydraulic valve; CAN; Drill rig; Rock drill; Blast hole drilling; Time delays; Ziegler-Nichols; PI-control;

   Abstract : The increase of intelligent systems can be seen in every industry. Integrated sensors and processors are used with internal control systems to create better performance for mobile hydraulic applications. The report describes how an evaluation was made to see if the productivity of a drill rig could be increased. READ MORE