Modeling and analysis of the visualized gas-assisted laser cutting flow from both conical and supersonic nozzles

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F20%3A00525097" target="_blank" >RIV/68081731:_____/20:00525097 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s00170-019-04915-4" target="_blank" >https://link.springer.com/article/10.1007/s00170-019-04915-4</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00170-019-04915-4" target="_blank" >10.1007/s00170-019-04915-4</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Modeling and analysis of the visualized gas-assisted laser cutting flow from both conical and supersonic nozzles

Popis výsledku v původním jazyce

A coaxial high-pressure gas jet is normally used to assist and enhance laser cutting quality and capability. However, the gas nozzles are mostly of conical type causing the deterioration of the dynamic characteristics of the exit jet. In this research, the effect of both nozzle type and nozzle dimensions on the uniformity and behavior of the exit jet has been investigated. A total of three different supersonic nozzles have been designed in accordance to gas dynamics theory and manufactured using wire electrical discharge machining (WEDM). The exit jet patterns from these supersonic nozzles and a reference conical nozzle have been numerically modeled and compared with the experimental observations made through Schlieren visualization. The experimental results are found to match and hence validate the simulations. It is concluded that the exit jet from the supersonic nozzle is marked by uniformity, better dynamic characteristics, and longer effective exit jet length compared with conical nozzle.

Název v anglickém jazyce

Modeling and analysis of the visualized gas-assisted laser cutting flow from both conical and supersonic nozzles

Popis výsledku anglicky

A coaxial high-pressure gas jet is normally used to assist and enhance laser cutting quality and capability. However, the gas nozzles are mostly of conical type causing the deterioration of the dynamic characteristics of the exit jet. In this research, the effect of both nozzle type and nozzle dimensions on the uniformity and behavior of the exit jet has been investigated. A total of three different supersonic nozzles have been designed in accordance to gas dynamics theory and manufactured using wire electrical discharge machining (WEDM). The exit jet patterns from these supersonic nozzles and a reference conical nozzle have been numerically modeled and compared with the experimental observations made through Schlieren visualization. The experimental results are found to match and hence validate the simulations. It is concluded that the exit jet from the supersonic nozzle is marked by uniformity, better dynamic characteristics, and longer effective exit jet length compared with conical nozzle.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

International Journal of Advanced Manufacturing Technology

ISSN

0268-3768

e-ISSN

—

Svazek periodika

106

Číslo periodika v rámci svazku

9-10

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

4635-4644

Kód UT WoS článku

000517968900070

EID výsledku v databázi Scopus

2-s2.0-85078348299