SHEETS USED IN WEIGHT REDUCTION OF AUTOMOBILE AND THEIR FORMING TECHNIQUES

Öz

The application of high strength steel sheets and aluminum alloyed sheets

to manufacturing of autobody parts has been increased day by day in order to reduce

automobile weight. Compared with the conventional sheet materials such as mild

steel, formability of these kind of steel sheets is less than that of conventional steel

sheets.

Reduction of automobile weight, at the same time , has made the reduction of

thickness of sheets used in auto industry obligatory. In addition; construction,

innovations in welding and manufacturing technology, and reduction of part number

have contributed for the reduction of automobile weight. But, the reduction of

thickness 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.

Anahtar Kelimeler

• Weight Reduction of Automobile,Forming Techniques

OTOMOBiL AGIRLIKLARININ AZALTILMASINDA KULLANILAN SAC METALLER VE BUNLARI ŞEKiLLENDiRME TEKNiKLERi

Öz

Otomobil agirhklanmn azalulmas: icin, yuksek rnukavernetli celik saclann ve

alurninyum alasimh saclann otornobil govdelerinde kullamlrnasi gun gectikce

artmaktadir. Bu cesit sac metallerin islenebilirligi, yurnusak celik gibi konvansiyonel

sac metallerin islenebilirligine nazaran daha azdir.

Otornobil agirhklannm azaltrlmasr. bun a paralel olarak bu sektorde kullarulan celik

saclann kalmhklanrnn azalulmasrru zorunlu hale getirrnistir. Buna ilave olarak;

konstruksiyon, kaynak ve imalat teknolojilerindeki gelisrneler ve parca sayisirun

azalulmasi, otomobil agrrhklarmm azalnlrnasma ilave katkilar saglarrusnr. Ancak:

celik sac levha kalmhklanrun azaltilrnasr, otomobillerde darbe ve diger direnclerin

azalrnasma, mevcut sekillendirrne tekniklerinin yetersiz kalrnasina sebep olmus,

bunun icin de yeni sac sekillendirme teknikleri ve rnukavernet artirma yontemleri

gelistirilmistir.

Anahtar Kelimeler

• Sekillendirrne Teknikleri,Otomobil Ağırlıklarının Azaltılması

Kaynakça

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