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Showing result 1 - 5 of 8 essays matching the above criteria.

  1. 1. Investigations of Tool Wear Mechanisms in the Turning of Conventional, Calcium Treated and Ultraclean Steels

    University essay from KTH/Materialvetenskap

    Author : Milou Göransson; [2023]
    Keywords : Clean steel; Ultraclean steel; Longitudinal turning; Cemented carbide cutting tool; Chemical vapor deposition coating; Machinability; Tool wear; Non-metallic inclusions; Rent stål; Ultrarent stål; Längdsvarvning; Hårdmetall skärverktyg; Kemisk ångdeponering beläggning; Bearbetningsbarhet; Verktygsslitage; Icke-metalliska inneslutningar.;

    Abstract : Application of clean and ultraclean steels have shown to provide favourable mechanical properties for bearings and transmission components, specifically regarding fatigue performance, compared to conventional steel grades. Clean steels are characterized by containing a very low level of non-metallic inclusions. READ MORE

  3. 2. Temperature effect on insert tool life in dry machining

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

    Author : William Hagberg; [2021]
    Keywords : Milling tool; Temperature; Wear; Simulation; Cooling; Heat sink; Insert;

    Abstract : This thesis work researched the temperature effects the insert tool life. This was examined through physical laboratory testing with designed milling tools and temperature simulations in ANSYS. The designed milling tools altered the temperature in the insert through external parameters like design and material. READ MORE

  4. 3. Development of a Laboratory Test Method for Assessment of Crater Wear Volume on Inserts for Steel Turning

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

    Author : Joakim Sandberg; [2019]
    Keywords : Crater wear; turning; focus variation; volume;

    Abstract : This thesis project was carried out at Sandvik Coromant in Västberga, Sweden with the purpose of developing a new laboratory test method for volumetric assessment of crater wear on inserts for steel turning. The test method was developed with the Sandvik Coromant´s existing crater wear measurement method as a starting point. READ MORE

  5. 4. Exploratory study of the interactions between textured alumina coatings and steel

    University essay from KTH/Materialvetenskap

    Author : Jonas Svantesson; [2018]
    Keywords : alpha Al2O3; diffusion couple; chemical wear; crater wear; DICTRA;

    Abstract : The crater wear of alumina coated WC-Co cutting tools is thought to be influenced by the chemical reactions between the coating and the workpiece material. Three different crystal orientations ((001), (012), and (100) of alpha alumina CVD coatings are examined in combination with four workpiece materials of steel to establish what reactions are present, and the extent of diffusion. READ MORE

  6. 5. Tool wear in turning of titanium alloy Ti–6Al–4V : Challenges and potential solutions for crater wear, diffusion and chip formation

    University essay from Uppsala universitet/Tillämpad materialvetenskap

    Author : Erik Bamford; [2016]
    Keywords : Wear; Titanium; Ti6Al4V; Diffusion; Crater Wear; Chip Formation; Shear Strain; Cracks; Turning; Cutting Tools; Cemented Carbide; TiCN; Coating; Sandvik; Coromant;

    Abstract : Titanium alloys are major materials used in the airplane industry, and prospects show that airplane production will double in the next 20 years. Consequently, the demand for cutting tools for machining of titanium alloys will increase. The primary problem when machining titanium alloys is their low thermal conductivity. READ MORE