INSTITUTE OF PULSE PROCESSES AND TECHNOLOGIES
NATIONAL ACADEMY OF SCIENCE OF UKRAINE
© 2012 Institute of Pulse Processes and Technologies of NAS of Ukraine. All rights reserved.
ELECTROHYDROPULSE TECHNOLOGY OF SHEET FORMING AND SIZING
ACCOMPLISHED RESULTS:
- forming of complex shape parts from flat sheet and tubular blanks;
- any orifice perforation in thin-sheet parts on flat and curved surfaces; part blanking. Combined blank loading by high hydrostatic and pulse pressure;
- combination of several forming operations;
- dimensions recovery of worn surfaces of tubular parts by expansion (compression) without subsequent mechanical treatment;
- tubular part sizing, including welded shells with inner ribbing;
- local deformation of large-scale parts.
ADVANTAGES:
- reduced costs for die tooling manufacture due to use of water as a participates as a punch;
- reduced manufacturing steps at the drawing-out of conical, parabolic, and spherical parts;
- more uniform thinning of a part in width is guaranteed;
- high quality of as-formed part surfaces and dimensional precision which corresponds to the equivalents
from JS 13 to JS 5 after sizing;
- stabilization of internal stresses after part deformation, decreased warping of flat parts.
EFFICIENCY:
- 2-5 fold decreased initial costs for production organization;
- 5-10 fold decreased production costs of the parts formed in small series in the experimental and pilot production
IMPLEMENTATION
At the enterprises of mechanical engineering, aircraft, shipbuilding, automotive industry, and consumer goods production.
Phones: +38 (0512) 58-71-48
ESSENCE
High-pressure pulses are produced in a closed volume made by a discharge chamber and a water-filled blank. The pulses generated by a high-voltage electric discharge deform a blank to fit a matrix pressed to a discharge chamber.