采用激光焊的行李箱外板上段沖壓工藝研究
董家玲，王振東，劉健，徐勇，姚鵬（中國第一汽車股份有限公司紅旗繁榮工廠，吉林長春 130011）
摘要：行李箱外板上段與下段采用激光焊結構，對成形制件搭接邊的表面質量及尺寸精度要求較高，由于翻邊深度較深，翻邊時產生坑包波浪且回彈嚴重，針對翻邊后回彈及表面質量缺陷等問題，從制件結構及工藝設計兩方面進行優化，提高成形制件尺寸精度及面品質量，縮短模具調試、整改周期，降低整車制造成本，提高市場競爭力。
關鍵詞：行李箱外板；表面質量；壓料翻邊；毛刺；激光焊
中圖分類號：TG386 文獻標識碼：B
文章編號：1001-2168（2021）08-0042-04
DOI：10.16787/j.cnki.1001-2168.dmi.2021.08.010
Research on stamping technology of upper section of trunk outer plate by laser welding
DONG Jia-ling, WANG Zhen-dong, LIU Jian, XU Yong, YAO Peng (Hongqi Fengrong Factory, FAW Co., Ltd., Changchun, Jilin 130011, China)
Abstract: The laser welding structure was adopted to connect the upper section and lower section of trunk outer plate. The surface quality on the edge of the forming parts lap and the dimension precision demand was higher. Due to the flanging depth was deep, the waves were generated when flanging, and the springback was serious. In order to solve the problem of the springback after flanging and the surface quality defects, from two aspects of product structure and process design to improve the sheet size accuracy and surface quality, and shorten the die debugging and rectification cycle.
Key words:trunk outer plate; surface quality; press flanging; burr; laser welding