Essays about: "drill bit inserts"

Found 5 essays containing the words drill bit inserts.

  1. 1. The Effect of Alternative Tungsten Carbide Grain Size Distribution on Microstructure and Mechanical Properties in Cemented Carbides

    University essay from KTH/Materialvetenskap

    Author : Filip Ivarsson; [2022]
    Keywords : Cemented Carbides; WC Grain Size Distribution; Mechanical Properties; Microstructure Analysis; Hårdmetall; WC Kornstorleksfördelning; Mekaniska Egenskaper; Mikrostruktur Analys;

    Abstract : In the constant pursuit of better-performing cemented carbides, recent studies suggest that a combination of better hardness and toughness can be obtained by changing its WC grain size distribution. As the area is still rather unexplored, this  thesis  aims  to  broaden  the  knowledge  and  answer  whether mechanical properties can be changed by changing the WC grain size distribution, in the context of mining drill bit inserts. READ MORE

  3. 2. Binder Migration in Double Pressed Drill Bit Inserts

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Fasta tillståndets fysik

    Author : Axel Bjerke; [2018]
    Keywords : Physics and Astronomy;

    Abstract : It is possible to produce functionally graded cemented carbides on a large scale by double pressing. Being able to predict the binder migration in WC-Co cemented carbides during the sintering is essential to the design of such cemented carbides. The cobalt content is one of the main factors determining the hardness gradient. READ MORE

  4. 3. A wear test mimicking the tribological situation in rock drilling

    University essay from Tillämpad materialvetenskap

    Author : Anna From; [2012]
    Keywords : tribological testing; wear test; cemented carbide; rock drilling;

    Abstract : This thesis work is performed at Sandvik Mining Rock Tools, a world leading supplier of rock drilling tools. The work is part of developing a new tribological wear test method for cemented carbide drill bit inserts. READ MORE

  5. 4. Tribological testing of rotary drill bit inserts

    University essay from Tillämpad materialvetenskap

    Author : Johan Wallin; [2012]
    Keywords : tribological testing; drill bit inserts; cemented carbides; rotary drilling;

    Abstract : The aim of this thesis work was to design and evaluate a wear test method for cemented carbides inserts used in rotary drilling. An appropriate in-house wear test method would provide a better understanding of the wear mechanisms limiting tool life in real drilling. READ MORE

  6. 5. Tribological testing of drill bit inserts

    University essay from Tillämpad materialvetenskap

    Author : Jakob Oskarsson; [2011]
    Keywords : tribological testing; drill bit inserts; cemented carbide wear;

    Abstract : This thesis work sought to find a tribological testing method suitable for cementedcarbide drill bit inserts used when drilling rock. A review of the literature publishedon the matter showed that there are quite a few test methods developed for wearstudies with cemented carbides, but most of them were not designed for the rockdrilling industry. READ MORE