14 / 15
А.Б. Люхтер, К.В. Скворцов, А.А. Вознесенская, А.С. Ежов, А.А. Бекетов
14
Инженерный журнал: наука и инновации
# 6·2016
Searching for solutions to micro hole perforation
in chromium and chromium-nickel steel
©
A.B. Lyukhter
1
, K.V. Skvortsov
2
, A.A. Voznesenskaya
1
,
A.S. Ezhov
2
, A.A. Beketov
3
1
Vladimir State University Engineering Centre of Laser Technology Implementation
in Mechanical Engineering, Vladimir, 600000, Russia
2
Vladimir State University Engineering Centre JSC, Vladimir, 600000, Russia
3
Armatura Design Bureau, Khrunichev State Research and Production Space Center
subsidiary, Kovrov, 601909, Russia
The study considers the problem of high positional density micro hole forming in chromi-
um-nickel steel by nanosecond laser emission. The article describes the sequence of tech-
nological approaches and operations. We modelled the effect of laser emission on the
surface of chromium-nickel steel. We created heat field distribution diagrams for various
numbers of pulses. The data obtained during computer modelling and full-scale experi-
ments are in 97% agreement. We determined the optimum sequence for hole formation so
as to decrease thermal loading on the workpiece. This helped to avoid thermal warping
of the part. The study suggests a range of technological approaches to increase the edge sur-
face quality of the micro holes obtained. It became possible to decrease the amount of liquid
phase products spilling onto the surface of the part being treated. We validate the feasibility of
employing additional technological approaches during laser microperforation.
Keywords:
fibre laser, laser microfabrication, ultra-perforation, micro holes, chromium-
nickel steel.
REFERENCES
[1]
Vaks E., Milenkiy M., Saprykin L.
Praktika pretsizionnoy lazernoy obrabotki
[Practical implementation of precision laser treatment]. Moscow, Tekhnosfera
Publ., 2013, 677 p.
[2]
Vedenov A.A., Gladush G.G.
Fizicheskie protsessy pri lazernoy obrabotke
materialov
[Physical processes during laser treatment of materials]. Moscow,
Energoatomizdat Publ., 1985, 200 p.
[3]
Grigoryants A.G., Shiganov I.N., Misyurov A.I.
Tekhnologicheskie protsessy
lazernoy obrabotki
[Manufacturing processes of laser treatment]. Moscow,
BMSTU Publ., 2006, 664 p.
[4]
Gornyy S.G., Grigorev A.M., Patrov M.I., Solovyev V.D., Turichin G.A.
Kvant.
elektronika — Quantum Electronics
, 2002, vol.32, no.10, pp. 929–932.
[5]
Liu Y.H., Hu J.D., Zhao L., Guo Z.X., Chumakov A.N., Bosak N.A.
Optics
and Laser Technology
, 2010, vol. 42, no. 4, pp. 647–652.
[6]
Serebryakov V.A.
Remont. Innovatsii. Tekhnologii. Modernizatsiya (RITM) —
Repair. Innovation. Technology. Modernization
, 2010, no. 5, pp. 32–34.
[7]
Belforte D.A.
Industrial Laser Solutions for Manufacturing
, 2016, no. 1, pp. 6–8.
[8]
Lu Q., Mao S.S., Mao X., Russo R.E. A thermal model of phase explosion for
high power laser ablation.
SPIE Proceedings
, 2002, vol. 4760, pp. 959–964.
Lyukhter A.B.
, Cand. Sci. (Eng.), Councillor to the Rectorate, Vladimir State Universi-
ty. Research interests include laser treatment of metals and alloys, internal combustion
engines, introduction of laser technologies to machine-building industry. e-mail:
3699137@gmail.com