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Home > Archive>Volume 52, Issue 2, 2025 >111-116. DOI:10.12143/j.ztgc.2025.02.015
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Experimental study on wear resistance of multi-level diamond single crystal impregnated columns
Author:
Affiliation:

1.Beijing Institute of Exploration Engineering, Beijing 100083, China;2.CNPC Engineering Technology R&D Company Limited, Beijing 102200, China

Clc Number:

P634.4;TE921

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    Abstract:

    This paper focuses on the diamond single crystal impregnated columns. To determine the wear resistance of impregnated column under different diamond parameters， a comparative wear resistance test for multi-level diamond single crystal impregnated pillars is designed. The preliminary conclusion obtained through experiments is that the wear ratio is relatively high when the diamond impregnated columns are graded with three mesh sizes of 20/25+35/40+60/70， and the design of a double chamfer structure can improve the wear resistance of diamond impregmented columns by about three times. The impregnated pillar was used as a secondary tooth inlay in ?152mm and ?215.9mm compound non-coring bit， and drilling tests were conducted on both bits. Which has a highier drilling efficiency and extremely slight wearness. The impregnated column studied in this article has great potential for engineering applications and is expected to provide reference for the design and selection of drilling tool materials.

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History
  • Received:May 08,2024
  • Revised:December 15,2024
  • Adopted:January 20,2025
  • Online: March 25,2025
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