Experimental Study of Characteristics of Assist Gas in Laser Machining Using Supersonic Rectangular Nozzle

被引：1
|
作者：
Son, Sang-Hyuk [1 ]
Jun, Dong-Yeon [2 ]
Lee, Yeol [2 ]
机构：
[1] Korea Aerosp Univ, Sch Aerosp & Mech Engn, Goyang, South Korea
[2] M&S Syst Corp, Carlsbad, CA 92008 USA
来源：
TRANSACTIONS OF THE KOREAN SOCIETY OF MECHANICAL ENGINEERS B | 2012年 / 36卷 / 03期
关键词：
Laser Machining; Assist Gas; Supersonic; Rectangular Nozzle;
D O I：
10.3795/KSME-B.2012.36.3.233
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
An experimental study to improve the impingement characteristics of the assist gas in laser cutting was carried out. For various assist-gas pressures, and locations and installation angles of the nozzle, the characteristics of the impingement of the jet from a supersonic rectangular nozzle were compared to those previously observed for typical circular nozzles. Schlieren flow visualizations and Pitot pressure measurements downstream of the kerf surface were utilized for this purpose. The present rectangular supersonic nozzle decreased the strength of the Mach disc occurring at the corner of the kerf surface, and thus, could weaken the separation of the assist gas on the kerf surface and increase the Pitot pressures downstream compared to conventional circular nozzles.
引用
收藏
页码：233 / 240
页数：8
相关论文
共 50 条
  • [1] Study of Characteristics of Assist Gas in Laser Machining Using Flow Visualization Techniques
    Son, Sanghyuk
    Lee, Yeol
    Min, Seongkyu
    TRANSACTIONS OF THE KOREAN SOCIETY OF MECHANICAL ENGINEERS B, 2011, 35 (02) : 153 - 160
  • [2] EXPERIMENTAL STUDY ON SCREECH SUPPRESSION OF SUPERSONIC FREE JET THROUGH RECTANGULAR NOZZLE
    Chen, Zhe
    Wu, Jiu-Hui
    Chen, Xin
    Lei, Hao
    Ren, Adan
    PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, 2015, VOL 4A, 2016,
  • [3] Characteristics of Underexpanded Supersonic Impinging Jet Caused by Rectangular Nozzle
    Yasunobu, Tsuyoshi
    Jiang, Xin
    Komatani, Kairi
    Fujiwara, Yuta
    RECENT ASIAN RESEARCH ON THERMAL AND FLUID SCIENCES, AJWTF7 2018, 2020, : 125 - 132
  • [4] An Experimental Study on the Characteristics of Rectangular Supersonic Jet on a Flat Plate
    Kwak, Ji-Young
    Lee, Yeol
    INTERNATIONAL JOURNAL OF AERONAUTICAL AND SPACE SCIENCES, 2016, 17 (03) : 321 - 331
  • [5] Effect of Scarfing on Rectangular Nozzle Supersonic Jet Plume Flow Characteristics
    Behrouzi, P.
    McGuirk, J. J.
    Avenell, C.
    AIAA JOURNAL, 2018, 56 (01) : 301 - 315
  • [6] Effect of scarfing on rectangular nozzle supersonic jet plume flow characteristics
    1600, AIAA International, 12700 Sunrise Valley Drive, Suite 200Reston, VA, Virginia, Virginia 20191-5807, United States (56):
  • [7] EXPERIMENTAL-STUDY OF SHOCK-FREE COUPLING OF AN ACCELERATING SUPERSONIC NOZZLE WITH A RECTANGULAR CHANNEL
    EFREMOV, NM
    TIKHONOV, BA
    HIGH TEMPERATURE, 1975, 13 (06) : 1167 - 1170
  • [8] Numerical study on the shock vector control in a rectangular supersonic nozzle
    Wu, Kexin
    Kim, Heuy Dong
    PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART G-JOURNAL OF AEROSPACE ENGINEERING, 2019, 233 (13) : 4943 - 4965
  • [9] A study on supersonic pulverization of fine particles: Use of rectangular nozzle
    Morimoto, H
    Shakouchi, T
    Fujii, T
    Ichiminami, Y
    KAGAKU KOGAKU RONBUNSHU, 2004, 30 (06) : 802 - 807
  • [10] Theoretical and Experimental Study on Machining Rectangular Microgroove of Diamond by Femtosecond Laser
    Dou, Jian
    Cui, Jianlei
    Fang, Xuyang
    Dong, Xiangyang
    Ullah, Naveed
    Xu, Muxun
    INTEGRATED FERROELECTRICS, 2020, 208 (01) : 104 - 116
12345