Effects of lubrication conditions on micro deep drawing
Effects of lubrication conditions on micro deep drawing
复制标题
DOI：
10.1007/s00542-010-1108-7
复制
发表时间：
2010-10
期刊：
影响因子：
--
通讯作者：
Feng Gong;B. Guo;Chunjun Wang;D. Shan
中科院分区：
文献类型：
--
作者：
Feng Gong;B. Guo;Chunjun Wang;D. Shan
合理选择成形工艺参数，可以实现大批量、低成本、可靠的圆筒形件微拉深成形。对直径为2 mm的拉深毛坯进行了微杯形件成形试验，研究了润滑条件对微杯形件拉深成形的影响。试样材料为厚度为40 μm的铜合金Cu-FRHC，在氮气气氛中于873 K下热处理12 h。实验是在室温下在无润滑的万能试验机上和在聚乙烯（PE）膜、大豆油和蓖麻油的润滑下以0.1mm/s的拉伸速度进行的。结果表明，微型杯准确地形成，最小直径为0.9 mm。结果表明，PE膜的拉伸力最小、极限拉伸比最大、表面质量好，可作为微成形的理想润滑剂。
Micro deep drawing of cylinder cups is a reliable mass production and low cost process if the forming parameters are reasonably chosen. Micro cups with a drawing blank diameter of 2 mm were formed and the effects of lubrication conditions on micro deep drawing were studied. The specimen material was copper alloy Cu-FRHC with a thickness of 40 μm which was thermally treated at 873 K for 12 h in nitrogen atmosphere. The experiments were carried out at room temperature on a universal testing machine without lubrication and under the lubrication of polyethylene (PE) film, soybean oil, and castor oil at a drawing velocity of 0.1 mm/s. The results showed that the micro cups were formed accurately with a minimum diameter of 0.9 mm. The PE film which results in the minimum drawing force, maximum limit drawing ratio (LDR), and good surface quality was better than other lubrication conditions and can be chosen as a proper lubricant in micro forming.