Processes in the area of laser beam exposure to metal research during laser welding in vacuum

Authors

  • I.Yu. Letyagin Perm National Research Polytechnic University
  • V.Ya. Belenkiy Perm National Research Polytechnic University; Perm Military Institute of National Guard Troops
  • Ya.V. Lyamin Perm National Research Polytechnic University
  • A.P. Erikov Perm Military Institute of National Guard Troops

DOI:

https://doi.org/10.7242/2658-705X/2019.3.2

Keywords:

laser welding in vacuum, secondary-emission current, control of the weld formation process

Abstract

Research results are presented of secondary emission signals in the zone of interaction of a laser beam with metal in order to study the possibility of monitoring the process of formation of laser weld in vacuum. Experimental studies of the parameters of the secondary emission electron and ion currents during pulsed laser welding in vacuum have been carried out. The dependences of the parameters of the secondary emission signals from the laser welding zone in vacuum on the distance between the collector of charged particles registering these signals and the product being welded, as well as the effect of the degree of vacuuming of the process chamber on the parameters of the secondary emission signals, are investigated. The results of the research will make up the basis for the development of methods of secondary emission control of the process of weld formation during laser welding in vacuum; its implementation into industrial production will ensure high reproducibility of the quality of welded joints produced by laser welding in vacuum and the absence of defects in welds.

Supporting Agencies
Статья подготовлена при финансовой поддержке Правительства Пермского края в рамках научного проекта № С-26/794 «Лазерная сварка в вакууме - будущее сварочных технологий» и при финансировании гранта РФФИ № 16-48-590208 «Исследование взаимосвязи параметров вторично эмиссионных сигналов с процессами в парогазовом канале при лазерной сварке в вакууме».

Author Biographies

  • I.Yu. Letyagin, Perm National Research Polytechnic University
    кандидат технических наук, доцент кафедры «Сварочное производство, метрология и технология материалов», Пермский национальный исследовательский политехнический университет (ПНИПУ)
  • V.Ya. Belenkiy, Perm National Research Polytechnic University; Perm Military Institute of National Guard Troops
    доктор технических наук, профессор кафедры «Сварочное производство, метрология и технология материалов», ПНИПУ, Пермский военный институт войск Национальной гвардии Российской Федерации (ПВИ войск Национальной гвардии)
  • Ya.V. Lyamin, Perm National Research Polytechnic University
    кандидат технических наук, доцент кафедры «Сварочное производство, метрология и технология материалов», ПНИПУ
  • A.P. Erikov, Perm Military Institute of National Guard Troops
    доцент, ПВИ войск Национальной гвардии

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Published

2019-10-14

Issue

No. 3 (2019)

Section

Research: theory and experiment

How to Cite

Letyagin, I. ., Belenkiy, V. ., Lyamin, Y. ., & Erikov, A. . (2019). Processes in the area of laser beam exposure to metal research during laser welding in vacuum. Perm Federal Research Centre Journal, 3, 20-29. https://doi.org/10.7242/2658-705X/2019.3.2