Dergiler / Journal of Scientific Reports-A / 2003 / Sayı: 005
OTOMOBiL AGIRLIKLARININ AZALTILMASINDA KULLANILAN SAC METALLER VE BUNLARI ŞEKiLLENDiRME TEKNiKLERi
- Sayı
- 2003 · Sayı: 005
- Sayfa
- 197–211
- DOI
- —
Özet
Otomobil agirhklanmn azalulmas: icin, yuksek rnukavernetli celik saclann vealurninyum alasimh saclann otornobil govdelerinde kullamlrnasi gun gectikceartmaktadir. Bu cesit sac metallerin islenebilirligi, yurnusak celik gibi konvansiyonelsac metallerin islenebilirligine nazaran daha azdir.Otornobil agirhklannm azaltrlmasr. bun a paralel olarak bu sektorde kullarulan celiksaclann kalmhklanrnn azalulmasrru zorunlu hale getirrnistir. Buna ilave olarak;konstruksiyon, kaynak ve imalat teknolojilerindeki gelisrneler ve parca sayisirunazalulmasi, otomobil agrrhklarmm azalnlrnasma ilave katkilar saglarrusnr. Ancak:celik sac levha kalmhklanrun azaltilrnasr, otomobillerde darbe ve diger direnclerinazalrnasma, mevcut sekillendirrne tekniklerinin yetersiz kalrnasina sebep olmus,bunun icin de yeni sac sekillendirme teknikleri ve rnukavernet artirma yontemlerigelistirilmistir.
Abstract
The application of high strength steel sheets and aluminum alloyed sheetsto manufacturing of autobody parts has been increased day by day in order to reduceautomobile weight. Compared with the conventional sheet materials such as mildsteel, formability of these kind of steel sheets is less than that of conventional steelsheets.Reduction of automobile weight, at the same time , has made the reduction ofthickness of sheets used in auto industry obligatory. In addition; construction,innovations in welding and manufacturing technology, and reduction of part numberhave contributed for the reduction of automobile weight. But, the reduction ofthickness of steel sheets, has caused reduction of dent resistance of automobiles.Therefore, existing forming techniques have became unsatisfactory. For this reason;newly forming techniques and strength-increasing methods have been developed.