Prediction and elimination of springback in straight flanging using computer aided design methods Part 1. Experimental investigations
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, cilt.117, ss.262-268, 2001 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 117
- Basım Tarihi: 2001
- Doi Numarası: 10.1016/s0924-0136(01)01164-5
- Dergi Adı: JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.262-268
- Anahtar Kelimeler: sheet metal bending, flanging, hemming, springback, FEM, CAD
- Yıldız Teknik Üniversitesi Adresli: Hayır
Özet
A computer aided design method for straight flanging using finite element method is presented. The predictions have been validated with some laboratory experiments, and this method was applied on a specific type of flanging in which the edge is coined at the end of the operation. The experiments included die corner radius, punch-die clearance, punch nose radius, pad force and material type as the main variables. Some selected cases from the experiments were simulated using two commercial finite element programs: DEFORM (TM) and ABAQUS (TM), and the results were compared with the experiments and the sources of error were discussed. Next, flanging with coining was investigated as a method to eliminate springback and to improve part quality.