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  • PDF Process development and scale up of cemented carbide

    PDF Process development and scale up of cemented carbide

    total cemented carbide production in 1993 was around 20,000 tons, and increased from 30,000 tons (2000) to almost 60,000 tons in 2008, particularly due to the introduction of China to the market.

  • Cemented Carbides Thermo Calc Software

    Cemented Carbides Thermo Calc Software

    Learn more about Applications to Cemented Carbides. PUBLICATION L. von Fieandt, R. M’Saoubi, M. Schwind, B. Kaplan, C. rhammar and B. Jansson Chemical Interactions Between Cemented Carbide and Difficult-to-Machine Materials by Diffusion Couple Method and Simulations Journal of Phase Equilibria and Diffusion, Volume 39, pages 369–376 (2018)

  • Investigation on hardness testing of cemented carbide tool

    Investigation on hardness testing of cemented carbide tool

    The results show that the real hardness of the cemented carbide tool can be obtained by the indentation FEM model. The hardness values of cemented carbide tools are then calculated by the traditional method, Oliver-Pharr (OP) method and indentation method, respectively.

  • Standard Test Method for Apparent Porosity in Cemented

    Standard Test Method for Apparent Porosity in Cemented

    4.1 Cemented carbide materials may contain small voids that, depending on the application, may affect the performance of the product. To assist users in specifying the maximum acceptable level of porosity, this test method illustrates a broad range of porosity levels for each of three porosity types.

  • Cemented Carbide an overview ScienceDirect Topics

    Cemented Carbide an overview ScienceDirect Topics

    Cemented carbide represents a class of composite materials, consisting of hard and wear resistant carbide and a tough and ductile metal binder, and thus owns a unique combination of hardness and toughness. In order to increase the performance and extend the service lifetime of the cemented carbides, graded cemented carbides have been developed.

  • Standard Test Method for Hardness Testing of Cemented Carbides

    Standard Test Method for Hardness Testing of Cemented Carbides

    1.1 This test method covers the hardness testing of cemented carbides by use of a Rockwell hardness tester performing tests in the Rockwell HRA scale (regular scale, diamond indenter, 10 kgf (98.07 N) preliminary test force, and 60 kgf (588.4 N) total test force in the range of Rockwell 80 HRA and above. Also covered are the procedures for the testing and selection of diamond indenters, the ...

  • Cemented carbide microstructures a review ScienceDirect

    Cemented carbide microstructures a review ScienceDirect

    Apr 01, 2019 Methods to produce a cemented carbide using doped hexagonal WC and to tailor the thickness of the gradient by combining doped hexagonal WC and nitrogen have been proposed. 4.5. Platelet WC. The shape of carbide crystals varies with the crystallographic structure of the carbide and the nature of the binder influences the properties of sintered ...

  • Properties and Application Of Gradient Cemented Carbide

    Properties and Application Of Gradient Cemented Carbide

    May 22, 2019 Using cemented carbide as the punch, the grain size of WC is 2-3μm, the number of punching times for standard cemented carbide is only 15 times, and the number of punching and shearing of cemented carbide for gradient structure is up to 64,000 times, while that of steel die punching The number is about 7231 times.

  • Properties and Testing of Cemented Carbides IntechOpen

    Properties and Testing of Cemented Carbides IntechOpen

    Jan 26, 2016 The former include successive etching of the cemented carbide surface or the hole-drilling method. The latter comprise X-ray measurement of strain, where residual stresses are determined from changes in interatomic and interplanar distances, which in turn are determined from changes in the scattering angle under Bragg’s law.

  • Strength or Toughness Attributing to Cemented Carbide

    Strength or Toughness Attributing to Cemented Carbide

    May 26, 2020 Indentation is a common method to determine the toughness of cemented carbide. The fracture toughness of the material is characterized by the critical stress intensity factor K1C. The results of the toughness test show that the fracture toughness of the material increases with the increase of cobalt content and WC grain size.

  • Method of sintering cemented carbide bodies Sandvik AB

    Method of sintering cemented carbide bodies Sandvik AB

    A method of sintering cemented carbide bodies includes heating said bodies to the sintering temperature in a suitable atmosphere and cooling. If said cooling at least to below 1250 C. is performed in a higher speed i.e. at more than 20 C./min cemented carbide bodies with no surface layer of binder phase are obtained.

  • Preferentially binder enriched cemented carbide bodies and

    Preferentially binder enriched cemented carbide bodies and

    10. A cemented carbide body according to claim 8 wherein said metal carbide is present at the level of at least 0.5 weight percent. 11. A cemented carbide body according to claims 6 or 7 wherein the cobalt enriched layer has a cobalt content at said peripheral surface equal to 1.5 to 3 times the average cobalt content of the body. 12.

  • Fracture toughness of cemented carbides Testing method

    Fracture toughness of cemented carbides Testing method

    Linear intercept on scanning electron microscopy micrographs is the most commonly used measurement method to determine carbide grain size and contiguity in WC–Co cemented carbides (hardmetals).

  • Electrolytic Abrasive Edge Honing of Cemented Carbide

    Electrolytic Abrasive Edge Honing of Cemented Carbide

    Therefore, in this study, to manufacture cemented carbide microchannel chip dies, we examine methods of forming a fine groove by means of grinding using an electrodeposited diamond wheel.

  • Design and Research of Double Layered Cemented Carbide

    Design and Research of Double Layered Cemented Carbide

    The numerical analysis results show that: when a pressure of 6.2 GPa is applied on the inner wall of the tungsten carbide cylinder, high-pressure die mold that uses cemented carbide as the first layer of support ring (hereinafter referred to as double-layered cemented carbide novel high-pressure die) is lower than the ordinary high-pressure die ...

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