Экспериментальная оценка режимов размерной обработки углепластиков импульсным наносекундным излучением волоконного иттербиевого лазера

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Экспериментальная оценка режимов размерной обработки углепластиков…
ISSN 0236-3941. Вестник МГТУ им. Н.Э. Баумана. Сер. Машиностроение. 2017. № 1 83
Просьба ссылаться на эту статью следующим образом:
Котов С.А., Лябин Н.А., Блинков В.В., Кондратюк Д.И., Бибик О.Б., Попов Д.С. Экспе-
риментальная оценка режимов размерной обработки углепластиков импульсным нано-
секундным излучением волоконного иттербиевого лазера // Вестник МГТУ им. Н.Э. Ба-
умана. Сер. Машиностроение. 2017. № 1. С. 73–85. DOI: 10.18698/0236-3941-2017-1-73-85
EXPERIMENTAL EVALUATIONOF CARBON FIBER REINFORCED PLASTICS
MACHININGMODES BY NANOSECOND PULSED YTTERBIUM FIBER LASER
S.A. Kotov1
N.A. Lyabin2
V.V. Blinkov3
D.I. Kondratyuk3
O.B. Bibik1
D.S. Popov1
1 Science and Technical Association IRE-Polus, Fryazino, Moscow Region,
Russian Federation
2 JSC RPC Istok named after Shokin, Fryazino, Moscow Region, Russian Federation
3 National Institute of Aviation Technologies, Moscow, Russian Federation
Abstract Keywords
The study tested the problem of effective machining of pro-
ducts made of carbon fiber reinforced plastics (CFRP) based
on thermosetting binders due to the high level of their strength
properties, versatility and ability to provide the minimum
product weight. This issue has become relevant at present
time. Traditional machining methods (mechanical and hydro-
abrasive machining) have some significant disadvantages —
high tool wear, material delamination due to the vibration and
shock loadings, limitations on the cutting contour and others.
One of the most promising solutions for eliminating these
problems in conventional methods is CFRP laser machining,
as it is a non-contact, flexible in operation, efficient machining
method. We conducted experimental research to determine
the process variables of laser machining of 1 mm thick CFRP
with epoxy resins matrix for acceptable heat affected zone
(HAZ) and cut channel geometry. We built a set-up on the
basis of a widely used in modern industry nanosecond pulsed
ytterbium fiber laser with a wavelength of 1.06 microns and an
average output power of 20 watts. We developed a method for
evaluating the quality of machining. According to the research
results, we formulated recommendations on the choice of
algorithm and process variables of the machining conditions,
providing the required quality of the parts in accordance with
the established criteria
Pulsed ytterbium fiber laser, laser
treatment, heat affected zone, polymer
composites, carbon fiber reinforced
plastics