Wearing Mechanisms of Picks Used in Continuous Miner Machine for Coal Cutting

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Authors

  • Department of Mechanical Engineering, Jaypee University of Engineering and Technology, Guna 473226 ,IN
  • Department of Mechanical Engineering, Graphic Era University, Dehradun 248002 ,IN
  • Department of Mechanical Engineering, Indian School of Mines, Dhanbad 826004 ,IN

Keywords:

Conical Pick, Cemented Carbide, Wearing Mechanisms, FESEM, EDS.

Abstract

Conical pick or point attack pick is an essential tool for cutting coals and rocks in mines. The abrasive parts of the mining tools are made of cemented carbide. An optimum combination of hardness, strength and wear resistance properties make the cemented carbide an essential material for tools in the field of excavation. The tool life gets limited by different wearing phenomena of the tool. It is critical to find out the wear mechanisms in order to facilitate the development of new and improved grade of cemented carbide and steel body. The present paper focuses different deterioration mechanisms in conical picks. All the picks under study have been used in coal cutting operation in an underground mine. The analysis through field emission scanning electron microscopy (FESEM) and energy dispersive X-ray spectroscopy (EDS) reveals mainly four types of deterioration mechanisms, such as, coal and rock penetration into the tip and the body part, coal cover formation, cracking of WC grains, scratches and plastic deformation.

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Published

2022-10-17

How to Cite

Nahak, S., Dewangan, S., & Chattopadhyaya, S. (2022). Wearing Mechanisms of Picks Used in Continuous Miner Machine for Coal Cutting. Journal of Mines, Metals and Fuels, 64(5), 128–135. Retrieved from https://informaticsjournals.com/index.php/jmmf/article/view/31487

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