TY - RPRT TI - Automatically extracting sheet-metal features from solid model. AU - Zhi-jian Liu AU - Jian-jun Li AU - Yi-lin Wang AU - Cai-yuan Li AU - Xiang-zhi Xiao PY - 2004 DO - 10.1631/jzus.2004.1456 UR - https://pubmed.ncbi.nlm.nih.gov/15495341/ ID - 15495341 ER -