Narodna in univerzitetna knjižnica, Ljubljana (NUK)
Naročanje gradiva za izposojo na dom
Naročanje gradiva za izposojo v čitalnice
Naročanje kopij člankov
Urnik dostave gradiva z oznako DS v signaturi
  • Effect of the tool geometry and welding parameters on the macrostructure, fracture mode and weld strength of friction-stir spot-welded polypropylene sheets = Vpliv geometrije orodja in parametrov varjenja na makrostrukturo, vrsto preloma in trdnost zvara pri torno-vrtilnem točkastem varjenju polipropilenskih plošč
    Bilici, Mustafa Kemal ; Yükler, Ahmet Ýrfan ; Kastan, Alim
    The effect of the tool geometry and welding parameters on the macrostructure, fracture mode and weld strength of the friction-stir spot welds of polypropylene sheets was studied. Three fracture modes ... were observed: the nugget pull-out failure, the cross-nugget failure and the mixed nugget failure under a lap-shear tensile test and nugget debonding and a pull out under a cross-tension loading, while the lap-shear tensile load was not affected significantly by the delay time. The lap-shear tensile load and the nugget thickness increased with the increasing tool rotation speed and dwell time. The macrostructure shows that the welding parameters have a determinant effect on the weld strength (x: the nugget thickness, y: the thickness of the upper sheet). Finally, when different welding parameters were used, different fracture modes of the joints were obtained in the friction-stir spot welding of polypropylene sheets. Based on the experimental observation of the macrostructures, the effect of the welding parameters and tool geometry on the lap-shear tensile load and the fracture mode were discussed.
    Vir: Materiali in tehnologije = Materials and technology. - ISSN 1580-2949 (Letn. 48, št. 5, sep.-oct. 2014, str. 705-711)
    Vrsta gradiva - članek, sestavni del ; neleposlovje za odrasle
    Leto - 2014
    Jezik - angleški
    COBISS.SI-ID - 1095850

vir: Materiali in tehnologije = Materials and technology. - ISSN 1580-2949 (Letn. 48, št. 5, sep.-oct. 2014, str. 705-711)

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