Automation of Heat Exchanger Shell Holes Machining Operation

  • A. Yu. GorelovaEmail author
  • M. G. Kristal
  • V. A. Martynenko
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)


The design of the shell and tube heat exchanger includes a tubelike shell with holes to which an inlet and outlet pipes are welded. Radial and tangential holes are produced manually by means of plasma cutting with the use of specialized tools, which determines high laboriousness of heat exchanger production. An automatic device is proposed to reduce the laboriousness of this operation. To produce the hole in the heat exchanger shell, two reversible motions are superimposed: linear motion of the cutter along the longitudinal axis of the shell and the shell rotary motion. A mathematical model of the required cutter motion is proposed, which describes the relative trajectories of the plasma cutter and the shell in parametric form. To verify theoretical premises, a prototype of the device was produced using a 3D prototyping technology, a ball screw for the reversible linear motion of the cutter and a stepper motor for the reversible rotary motion of the shell. The shell is fixed by means of a collet chuck and rests on the pipe roller support. The principles of automatic control of the linear and rotary motions of the cutter and the shell are proposed, based on the 3D model of the shell.


Holes machining Automatic cutting Plasma cutting Automatic device 



The authors express their gratitude to A. M. Makarov (Head of the Department of Technological Processes Automation at Volgograd State Technical University) and Ju. M. Bazhensky (Senior Research Assistant at the same department).


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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • A. Yu. Gorelova
    • 1
    Email author
  • M. G. Kristal
    • 1
  • V. A. Martynenko
    • 1
  1. 1.Volgograd State Technical UniversityVolgogradRussia

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