Incremental ECAP of thick continuous plates - machine and initial trials

Andrzej Rosochowski, Lech Olejnik

Research output: Contribution to journalConference Contribution

4 Citations (Scopus)
80 Downloads (Pure)

Abstract

Incremental ECAP (I-ECAP) can be used for SPD of continuous bars, plates and sheets. This paper describes design, construction and preliminary trials of a prototype machine capable of processing thick continuous plates. To increase productivity, a two-turn I-ECAP is used, which is equivalent to route C in conventional one-turn ECAP. The machine has a reciprocating punch inclined at 45°, a clamp holding the plate in the die during deformation and a feeder incrementally feeding the plate when it is not deformed; all these devices are driven by hydraulic actuators controlled by a PLC. The machine is capable of deforming materials at room temperature as well as elevated temperatures. The die is heated with electric heaters. The machine has also an integrated cooling system and a lubrication system. The material used for the initial trials was Al 1050 plate (10501000) conversion coated with calcium aluminate and lubricated with dry soap. The process was carried out at room temperature using 1.6 mm feeding stroke and a low cycle frequency of approximately 0.2 Hz. The UFG structure after the first pass of the process revealed by STEM confirms process feasibility.
Original languageEnglish
Article number012010
Number of pages6
JournalIOP Conference Series: Materials Science and Engineering
Volume63
Issue number1
Early online date8 Aug 2014
DOIs
Publication statusPublished - 18 Aug 2014
Event6th International Conference on Nanomaterials by Severe Plastic Deformation - The Arsenal , Metz, France
Duration: 30 Jun 20144 Jul 2014
http://www.nanospd6.com/

Keywords

  • ultrafine grained metals
  • severe plastic deformation
  • ECAP
  • thick continuous plates
  • machine and initial trials

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