Investigation of the geometrical accuracy and thickness distribution using 3D laser scanning of AA2024-T3 sheets formed by SPIF
Year: 2017
Type: article
Abstract: Incremental sheet forming (ISF) is developed in order to meet the increasing demand for sheet metal forming and because it is a more economical method.First of all, this method gains attention become it is a die-less method.Furthermore, process flexibility and higher formability are other advantages of this method.In this study, AA2024-T3 sheets with a determined geometry and parameters were formed using the ISF method.Among the forming process parameters, tool path, step size and lubrication parameters were changed.The tool diameter, feed rate, spindle speed, angle of the wall and the tool coating parameters were kept constant.The thickness distributions and geometrical accuracy of the processed samples with the three-dimensional laser scanning method were examined accurately.It is clear from the results that the tool path that spirals and always keeps in touch is more successful than the tool path that makes it an incremental process.ISF is preferable to die production for limited production runs because it is more economic and the processing time is short.Keywords: incremental sheet forming, single point incremental sheet forming, aluminum alloy AA2024, laser scanning Stopnjujo~e preoblikovanje plo~evine (angl.ISF) je bilo razvito z namenom zadovoljiti povpra{evanje po razli~nem preoblikovanju plo~evine na bolj ekonomi~en na~in.Ta metoda vzbuja pozornost, ker gre za metodo brez orodja.Drugi dve prednosti te metode sta: fleksibilnost procesa in ve~ja preoblikovalnost.V pri~ujo~i {tudiji je bila plo~evina iz AA2024-T3 preoblikovana z dolo~eno geometrijo in parametri z uporabo metode ISF.Med postopkom preoblikovanja so bili spreminjani procesni parametri, kot je pot orodja, velikost koraka in parametri mazanja.Premer orodja, hitrost podajanja, hitrost vrtenja, naklon stene in parametri prekritja orodja, so bili konstantni.Razporeditev debelin in geometrijska natan~nost izdelanih vzorcev so bili natan~no preiskani s tridimenzionalnim laserskim skeniranjem.Rezultati so pokazali, da sta spiralna pot orodja in stalen stik bolj uspe{na od poti orodja, ki dela postopoma.Pokazalo se je tudi, da je pri omejeni koli~ini postopek ISF relativno bolj ekonomi~en kot postopek z orodjem in tudi ~as izdelave je kraj{i.
Source: Materiali in tehnologije
Authors: Halil Bayram, Nurullah Sinan Köksal
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $323
OpenAlex ID: W2589463519