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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. Kotov

1

skotov@ntoire-polus.ru

N.A. Lyabin

2

V.V. Blinkov

3

vblinkov@niat.ru

D.I. Kondratyuk

3

O.B. Bibik

1

obibik@ntoire-polus.ru

D.S. Popov

1

dpopov@ntoire-polus.ru

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