SUS304不锈钢薄壁筒形件冷塑性成形方法探析
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摘要
主要论述有关SUS304不锈钢薄壁筒形件的基本冷塑性成形工艺及各自加工特点,包括拉深成形工艺、旋压成形工艺、液压胀形工艺.结合筒壁缩颈处3种典型几何型面的薄壁筒形件探析多种冷塑性成形方法,对应喇叭形锥面、碗形倒扣弧面和弓形双型面的塑性加工方法为拉深+局部旋压成形、拉深成形、拉深+液压胀形.指出复合成形工艺具有明显的优点以及广阔的应用前景,不仅能加工传统模具难以成形的复杂形状,而且能有效减少成形次数和提高工件的强度与刚度.实际生产中,通常以产品质量与经济成本为导向进行综合考虑来确定最优成形工艺方案.
The basic cold plastic forming technology and its processing characteristics of SUS304 stainless steel thin-walled cylinder parts were discussed,including drawing forming,spinning forming and hydro-bulging forming.Several cold-plastic forming methods for thin-walled cylindrical parts with three typical geometric surfaces at necking of cylindrical wall were analyzed,corresponding to the plastic processing methods of bell cone surface,bowl-shaped inverted arc surface and bow-shaped double surface,which are deep drawing + local spinning forming,deep drawing forming,and deep drawing + hydraulic bulging.It is pointed out that the composite forming process has obvious advantages and broad application prospects,which can not only process complex shapes that are difficult to form in traditional dies,but also effectively reduce the forming times and improve the strength and stiffness of the workpiece.In practical production,the optimal forming process scheme is usually determined by the comprehensive consideration of product quality and economic cost.
The basic cold plastic forming technology and its processing characteristics of SUS304 stainless steel thin-walled cylinder parts were discussed,including drawing forming,spinning forming and hydro-bulging forming.Several cold-plastic forming methods for thin-walled cylindrical parts with three typical geometric surfaces at necking of cylindrical wall were analyzed,corresponding to the plastic processing methods of bell cone surface,bowl-shaped inverted arc surface and bow-shaped double surface,which are deep drawing + local spinning forming,deep drawing forming,and deep drawing + hydraulic bulging.It is pointed out that the composite forming process has obvious advantages and broad application prospects,which can not only process complex shapes that are difficult to form in traditional dies,but also effectively reduce the forming times and improve the strength and stiffness of the workpiece.In practical production,the optimal forming process scheme is usually determined by the comprehensive consideration of product quality and economic cost.
引文
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[2] 卫光伟.薄壁圆筒零件的工艺措施探析[J].装备制造技术,2011(2):90-92.
[3] 李海峰,赵晓平.圆筒件冷拉深成形工艺分析及数值模拟[J].锻压装备与制造技术,2009,44(6):76-79.
[4] 李新和,杨新泉,王艳芬.薄壁筒形件旋压成形的研究进展[J].锻压技术,2011,36(1):7-12.
[5] 王庆辉,范清风.管材内高压成形工艺研究[J].热加工工艺,2016,45(7):188-190,193.
[6] 贾新朝,姚草根,吕宏军,等.细晶薄壁筒形件的旋压成形[J].航空制造技术,2007(z1):516-518.
[7] 柯旭贵,张荣清.冲压工艺与模具设计[M].2版.北京:机械工业出版社,2017.
[8] 张蓉.304不锈钢拉深成形的物理模拟与数值模拟研究[D].长沙:中南大学,2007.
[9] 徐洪民,赵振铎.不锈钢薄板拉伸、冲压成形性能的试验研究[J].精密成形工程,2003,21(2):23-26.
[10] 段良辉,喻立,周仁湘,等.薄壁筒形件旋压工艺及工装设计[J].精密成形工程,2011,3(4):68-71.
[11] 王淼.不锈钢管材滚珠旋压数值模拟与实验研究[D].沈阳:沈阳理工大学,2007.
[12] 厉善元.薄壁回转体零件的旋压加工[J].模具工业,2002(8):27-29.
[13] 林乔荣.异形管件液压成形关键技术研究[D].重庆:重庆大学,2003.
[14] 苑世剑,郎利辉,王仲仁.内高压成形技术研究与应用进展[J].哈尔滨工业大学学报,2000,32(5):60-63.
[15] 禹锦绣.水压胀形壳体在高压开关中的应用[J].农村电气化,2017(11):58-58.
[16] 上海工程技术大学.杯形回转体零部件开口端配合尺寸检具及检测方法:CN107830782 A[P].2018-03-23.
[17] 陈娜,刘欣.管件成形工艺研究[J].山东化工,2015,44(16):117-118.
[18] 束军平,刘斌.一种采用拉深与液压胀形的复合成形工艺与模具设计[J].模具工业,2014,40(2):30-33.