Essays about: "frictional heat"

Showing result 1 - 5 of 7 essays containing the words frictional heat.

1. 1. Influence of Surface Carbon Content on the Wear of Threaded Connections in Rock Drilling Steels

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

   Author : Andreas Hälsing; [2023]
   Keywords : carbon content; wear performance; carburized steel; dry contact interface; threaded connections; drill rods; samples; shot peening; production process; twin-disc wear tester; RPM; operating conditions; wear rate; surface topography; hardness; optical analysis; light optical microscopy; scanning electron microscopy; surface carbon content; microstructural changes; frictional heat; contact pressure; wear mechanisms; plastic deformation; adhesive scratching; material removal; delamination;

   Abstract : This thesis work was conducted at Luleå University of Technology in collaboration with Sandvik Rock Tools. The aim of the work was to determine the influence of carbon content on the wear performance in carburized steel in the dry contact interface of threaded connections between drill rods. READ MORE

3. 2. Development of Foot Design for Gasketed Plate Heat Exchangers

   University essay from Lunds universitet/Innovation

   Author : Daniel Rundström; [2022]
   Keywords : Heat exchanger; bolted joints; product development; FEM.; Technology and Engineering;

   Abstract : In the process of making the industry more energy efficient, the gasketed plate heat exchanger has an important role as it effectively transfers heat between fluids. This master thesis aims to investigate and develop a new supportive foot for Alfa Laval’s gasketed plate heat exchangers. READ MORE

4. 3. Mapping and characterisation of surface damage and wear mechanisms in gun barrels : Gun barrels exposed to cyclic thermo-mechanical loading

   University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

   Author : Martin Perkovic; [2020]
   Keywords : Wear; erosion; sliding wear; gun barrel; characterisation;

   Abstract : Gun barrels are an important component in advanced defence systems. The gun barrels are used for direct and indirect fire and the material of the gun barrel is exposed to great strains and high temperatures. This sets high demands on the material of the gun barrel. During firing the gun barrel can be damaged. READ MORE

5. 4. Simulation of thermal stresses in a disc brake

   University essay from JTH. Forskningsmiljö Produktutveckling - Simulering och optimering

   Author : Jiyue Tao; Asnaf Aziz; [2012]
   Keywords : DISC BRAKE; ABAQUS; FATIGUE ANALYSIS; PLASTICITY; FLOW RULE; HARDENING; STRESS AND STAIN ANANLYSIS;

   Abstract : The heat flux produced from the friction between a disc and pad system leads to a high temperature which causes thermal stresses in the disc and after a number of repeated braking cycles, cracks might be initiated. The finite element analysis (FEA) is performed to determine the temperatures profile in the disc and to analyze the stresses for the repeated braking, which could be used to calculate the fatigue life of a disc. READ MORE

6. 5. Robotic Friction Stir Welding for Automotive and Aviation Applications

   University essay from Avd för industriell produktion

   Author : Jeroen De Backer; Bert Verheyden; [2010]
   Keywords : Robotic; Friction Stir Welding; Simulation; Reachability;

   Abstract : Friction Stir Welding (FSW) is a new technology which joins materials by using frictional heat. Inthe first part of this thesis, a profound literature study is performed. The basic principles, therobotic implementation and possibilities to use FSW for high strength titanium alloys areexamined. READ MORE