Failure Probability of Thermally Stable Diamond Composite Tips for Cutting Rock Segments

Yong Sun; Xing Sheng Li

doi:10.4028/www.scientific.net/MSF.936.192

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HomeMaterials Science ForumMaterials Science Forum Vol. 936Failure Probability of Thermally Stable Diamond...

Failure Probability of Thermally Stable Diamond Composite Tips for Cutting Rock Segments

Abstract:

Thermally Stable Diamond Composite (TSDC) tips have attracted a great attention of rock cutting industry due to the higher thermal stability and high wear resistance of TSDC. To make the TSDC tipped picks practical for real application, it is important to understand the failure behavior of the TSDC tips for rock cutting. One of the failure characters of TSDC tips is random failures. In this paper, a method is proposed to calculate the failure probability of TSDC tips for cutting individual rock segments. This method enables to link the segment length to the failure probability of the tip for cutting the segment. A numerical case study is presented to validate the method. The method can effectively reduce the impact of the number of segments on failure probability estimation accuracy.

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Periodical:

Materials Science Forum (Volume 936)

Pages:

192-197

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.936.192

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Online since:

October 2018

Authors:

Yong Sun*, Xing Sheng Li

Keywords:

Diamond Composite, Failure Probability, Material Characters, Rock Cutting, Tip Failures

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