By analyzing different type of die and punch, flanging die structure was determined.Adoption of tube in flanging simplifies part structure and improves seal property.

• 要保证翻边质量,凸、凹模的设计是关键,通过对不同形式的凸、凹模的分析,确定钢管翻边模结构,采用钢管翻边工艺简化了零件结构,提高密封性,适用于大批量生产。