Naslov
Plastic Forming of Thin-Walled Profiles from the Strip by Cold Rolling Procedure

Autori
Milan Jurković, Branimir Barišić

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Materials And Metallurgy / Mamuzić, Ilija - Zagreb : Hrvatsko metalurško društvo, 2000

Skup
SHMD 2000-Symposium Of Croatian Metallurgical Society

Mjesto i datum
Opatija, Hrvatska, 25.06.2000. - 29.06.2000

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Plastic forming; thin-walled profiles; cold rolling

Sažetak
The forming of thin-walled profiles is based on gradual material forming in the form of strip by passing it between a series of cylindrical rolls. In the process of profiles forming elastic-plastic strains emerge in the three mutually orthogonal directions, in the vertical, horizontal and longitudinal direction. Vertical strains are useful because they determine profile form. Longitudinal strains are harmful because they influence geometrical form and profiles quality, and increase complexity of defining process because after each rolling phase it arrives at growth of strip length. Geometrical form of profiles and dimensions are especially significant at profiles making of special shape where high degree of accuaracy is requested. The basic influential parameter of geometry and profiles quality is tool, that is: calibrating, accuaracy of making and tool adjusting, angle increment of bending, material and quality of tool surface machining, the number of forming phases and tribology-friction of tool contact by strip. The paper gives a survey of the classification profiles making procedures, profiles geometry, flexibillity of roll set, forming technology, state of stress, contact stress determining, force and moment of forming, experimental results, calibrating of tool (AUTOCAD and AUTOLISP) and examples of profiles phased forming. Technology of profile phased forming is shown by two examples of forming with the aid of ACAD 12 program, where the drawing of final profile is a starting point for determining of phases and profiles forming procedure. Procedure of cold rolling of thin-walled profiles, in comparison with the other procedures of profiles making, has techno-economic advantages inspite of considerable investments in tools.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA