title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸Ð¸ Ð»Ð°Ð·ÐµÑÐ½Ð¾Ð¹ Ð½Ð°Ð¿Ð»Ð°Ð²ÐºÐ¸ ÐºÐ°ÑÐ±Ð¸Ð´Ð° Ð²Ð¾Ð»ÑÑÑÐ°Ð¼Ð° Ð½Ð° ÑÐ°Ð±Ð¾ÑÑÑ Ð¿Ð¾Ð²ÐµÑÑ Ð½Ð¾ÑÑÑ Ð±ÑÑÐ¸Ð»ÑÐ½Ð¾Ð¹ ÑÑÑÐ±Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Research of the technology of laser cladding of tungsten carbide on the working surface of the drill pipe
Creators: name: ÐÐ²ÐºÐ¸Ð½, ÐÐ»ÐµÐºÑÐ°Ð½Ð´Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2022
Subjects: ÐÑÑÐ¸Ð»ÑÐ½ÑÐµ ÑÑÑÐ±Ñ
ÐÐ°Ð¿Ð»Ð°Ð²ÐºÐ°
Ð¿Ð¾Ð²ÐµÑÑ Ð½Ð¾ÑÑÐ½Ð¾Ðµ ÑÐ¿ÑÐ¾ÑÐ½ÐµÐ½Ð¸Ðµ
surface hardening

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description: Topic of the final qualification work: "Research of the technology of laser cladding of tungsten carbide on the working surface of the drill pipe". The object of the study is a drill pipe made of P530 steel with a hard-alloy wear-resistant coating based on tungsten carbide powder deposited on an intermediate layer based on Inconel 625 alloy. During the study, the surface layer of the sample was subjected to laser radiation, the hardness of the surface intermediate and hard-alloy layers of the surfacing was measured, the microstructure of the surfacing and the adjacent zone was analyzed, the materials and equipment used for this type of surfacing and the causes of defects were analyzed. Based on the results of the studies performed, it was found that the use of the selected mode of laser deposition leads to the appearance of defects in the form of pores, cracks and non-fusion. Heat affected zone hardness reduced by 30HV. The paper presents recommendations for improving the mode of laser cladding to obtain surfacing with improved required characteristics and with uniform penetration without defects. The purpose of this work is to study a hardening and wear-resistant coating based on tungsten carbide deposited using a laser beam. The objectives of this study are: 1. Analysis of literature data on existing technologies for the restoration and hardening of the working parts of drill pipes. 2. Analysis of the materials and equipment used for this type of surfacing. 3. Evaluation of the microstructure and microhardness. 4. Analysis of the reasons for the formation of defects. 5. Recommendations for improving the mechanical properties of laser cladding.