Essays about: "Comb cracks"

Found 3 essays containing the words Comb cracks.

1. 1. Microstructure investigations of WC-Co cemented carbide containing Eta-phase and Cr

   University essay from Uppsala universitet/Tillämpad materialvetenskap

   Author : Sofia Tran; [2018]
   Keywords : Cemented carbide; Eta-phase; Chromium; Material characterization;

   Abstract : Cemented carbide containing sub carbide phases, M6C and M12C, known as eta-phase, increases the lifetime milling cutters due to increased resistance to comb cracks. When milling, the inserts much sustain high temperatures, meaning edgeline toughness and thermal fatigue resistance are needed. READ MORE

3. 2. Simulation of fatigue crack growth in coated cemented carbide milling inserts

   University essay from KTH/Hållfasthetslära (Avd.)

   Author : André Tengstrand; [2017]
   Keywords : ;

   Abstract : The aim of this work is to create a nite element model that simulates fatigue crack growth in coated cemented carbide milling inserts. A typical fatigue wear of coated milling tools are comb crack formation on the cutting edges of the tool inserts. Comb cracks initiate from pre-existent cooling cracks in the coating layers. READ MORE

4. 3. Chemical Effects on Formation and Propagation of Comb Cracks in Coated Cemented Carbide Milling Inserts

   University essay from KTH/Materialvetenskap

   Author : Klas Jonsson Wildner; [2014]
   Keywords : Milling tools; Cemented Carbide; Comb cracks; Corrosion; Oxidation;

   Abstract : The report aims to investigate the influence of chemical reactions on comb crack formation and propagation in coated cemented carbide milling inserts with different compositions. A series of novel experimental techniques have been developed and applied to understand oxidation and corrosion effects on comb cracks. READ MORE