摘要
采用超塑成形工艺研究了细晶超塑Zn-Al22合金的微成形。采用表面带有微槽和微孔两种形式的不锈钢模具,对所选材料进行了微成形性试验,并利用提出的评价方法对其成形进行评价。微挤压试验证明了材料的微成形性。分析了润滑、压力及模具结构对成形的影响。采用SEM对成形件微观形貌进行了分析。
Research on microforming of fine grained superplastic
Zn-A122 alloy is carried out by means of superplastic forming.
With the selected material, microformability tests are carried out
by using two kinds of stainless steel dies: one with micro-cavity,
the other with micro-channel. The results are evaluated with the
developed evaluation method. Characteristics of micro-formabi-
lity of the material are clarified with micro-extrusion tests. Effec-
ts of lubrication, press and die structure on forming are analy-
sed. SEM is used to analyse surface topograph of the formed
specimens.
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
2004年第5期82-86,共5页
Journal of Mechanical Engineering
