Roles of Process Parameters and Materials Properties on Galling During Blanking and Punching of Aluminum Sheets

工艺参数和材料性能对铝板冲裁过程中拉毛的影响

• 批准号: 509231-2017
• 负责人: Alpas, Ahmet
• 金额: $ 0.91万
• 依托单位: University of Windsor
• 依托单位国家: 加拿大
• 项目类别: Engage Plus Grants Program
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=639948
• 关键词: Roles; Process; Parameters; Materials; Properties

The collaborative NSERC Engage research project undertaken by the University of Windsor and Novelisresearchers resulted in providing an new and efficient method for measuring the amount of aluminumtransferred to the tool surfaces during shearing and punching of aluminum sheets. The use of this methodbased on white light interferometry will allow to determine Al galling rate as a function of processparameters, such as clearance percentage, angle, pressure and using different lubrication strategies.Furthermore a correlation was established between the cut edge features (burnish and shear fracture) and thegalling volume increase with the number of press cycles. The NSERC Engage Plus program is intended tobuild on these achievements improve our understanding of Al galling problem.The objectives of the proposed research include i) studying the effect of variation in clearance and lubricant onAl galling and trimmed edge features; ii) investigation of the influence of mechanical properties of thealuminum sheets on the trimmed edge quality; iii) use of carbon based tool coatings in conjunction with theappropriate selection of lubricants which to mitigate galling improve the tool life as well as the sheared edgequality.

由温莎大学和Novelis研究人员合作开展的NSERC Engage研究项目提供了一种新的有效方法，用于测量铝片剪切和冲压过程中转移到工具表面的铝量。基于白色光干涉测量法的这种方法的使用将允许确定作为工艺参数的函数的铝粘扣率，如间隙百分比、角度、压力和使用不同的润滑策略，此外，建立了切割边缘特征（抛光和剪切断裂）和粘扣体积随压制循环次数增加之间的相关性。NSERC Engage Plus计划的目的是在这些研究成果的基础上，提高我们对铝粘扣问题的认识，其研究目标包括：i）研究间隙和润滑剂的变化对铝粘扣和切边特征的影响; ii）研究铝板的机械性能对切边质量的影响; iii）使用碳基刀具涂层，并适当选择润滑剂，以减轻磨损，提高刀具寿命和剪切边缘质量。