Essays about: "plastic deformation"

Showing result 6 - 10 of 86 essays containing the words plastic deformation.

  1. 6. 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. 7. A Feasibility Study of Automated Quality Control and Component Handling in a Plastic Flange Deformation Process

    University essay from Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Author : Jakob Nilsson; Isak Olofsson; [2023]
    Keywords : Automation; Plastic Flange Deformation; Quality control; Design Research Methodology; Analytical Hierarchy Process; Automatisering; Kragning; Kvalitetskontroll; Design Research Methodology; Analytical Hierarchy Process;

    Abstract : Due to the global energy crisis there is a vast increase in demand for heat exchangers that reduces the energy consumption during energy transfer between mediums. The current manufacturing process for brazed heat exchangers at the world leading man-ufacturer, Alfa Laval, involves a partial assembly process called Plastic Flange Defor-mation (PFD). READ MORE

  4. 8. Towards a sustainable substitute for Acrylonitrile Butadiene Styrene (ABS) in automotive industry

    University essay from KTH/Fiber- och polymerteknologi

    Author : Amalia Christoula; [2023]
    Keywords : Polylactide PLA ; Biobased; Life Cycle Analysis LCA ; Impact modifiers; Lignocellulose nanofibers LCNF; Polylaktid PLA ; Biobaserad; Livscykelanalys LCA ; Slagtålighet; Nanofibrer av lignocellulosa LCNF ;

    Abstract : Syftet med detta examensarbete var att utveckla ett hållbart ersättningsmaterial till akrylnitrilbutadienstyren plast (ABS), genom att applicera principerna för grön kemi och teknik. ABS är en icke-nedbrytbar plast som till exempel används i slagtåliga produkter för hyttinteriörer. READ MORE

  5. 9. Finite Element Macro-modeling of a Historical Masonry Building : Influence of Isotropic vs Anisotropic Plastic Material Model Assumption in Static Analysis

    University essay from KTH/Bro- och stålbyggnad

    Author : Madeleine Olsson; Maja Gustavsson; [2023]
    Keywords : ;

    Abstract : In this study, a macro-modeling strategy is implemented in a bearing wall with arch openings in an existing historical masonry building. This is to investigate what differences and similarities can be observed from the assumption of an orthotropic versus an isotropic constitutive material model. READ MORE

  6. 10. Evaluation of pretension losses in heated screw joint

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

    Author : Joel Svensson; [2022]
    Keywords : screw joint; clamping force; thermal load;

    Abstract : The heated flow within the silencers of heavy transport vehicles can easily reach temperatures of hundreds of degrees Celsius. The thermal loads can cause problems for certain components on a silencer. READ MORE