Development of a Rotary Drilling Mechanism for Impregnated Diamond Bits

Zhan Tao Li; Yong Zheng Ma; Ken-ichi Itakura

doi:10.4028/www.scientific.net/AMR.989-994.3136

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 989-994Development of a Rotary Drilling Mechanism for...

Development of a Rotary Drilling Mechanism for Impregnated Diamond Bits

Abstract:

Impregnated diamond core bits are often used in core drilling for geological surveys. A tri-state theory is proposed to describe the three states in drilling processes for a diamond particle or a bit. These states are contacting state, cutting state, and ploughing state. Furthermore, the relations among thrust and other mechanical parameters are also summarized. The optimal value of the specific energy is in the cutting state. Several experiment results verified the proposed model. This mechanism is useful for selecting operation parameters in core drilling using impregnated diamond core bits.

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Periodical:

Advanced Materials Research (Volumes 989-994)

Pages:

3136-3139

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.989-994.3136

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Online since:

July 2014

Authors:

Zhan Tao Li*, Yong Zheng Ma, Ken-ichi Itakura

Keywords:

Drilling Mechanism, Impregnated Diamond Bits, Specific Energy, Uniaxial Compressive Strength

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* - Corresponding Author

References

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