A Novel Failure Approach for Multi-stage Aluminium Sheet Forming

多阶段铝板成型的新型失效方法

• 批准号: LP150101027
• 负责人: Prof Jeong Whan Yoon
• 金额: $ 20.94万
• 依托单位: Deakin University
• 依托单位国家: 澳大利亚
• 项目类别: Linkage Projects
• 财政年份: 2016
• 资助国家: 澳大利亚
• 起止时间: 2016-04-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LP150101027
• 关键词: Novel; Failure; Approach; Multi; stage

This project aims to reduce waste in the production of aluminium cans. Over 200 billion aluminium beverage cans per year are produced worldwide (including 30 billion in Australia), but there is a problematic level of waste due to aluminium sheet forming failure. Current simulation of a multi-stage sheet forming process for rigid-packaging components results in a higher rejection rate due to the inaccuracy of conventional forming and fracture limit models. A novel development in this work is the design of a nonlinear strain path which is intended to maximise the forming limit of aluminium alloys and also estimate the safety margin up to the necking or fracture limit in the early die design stage.

该项目旨在减少铝罐生产过程中的废物。全世界每年生产超过2000亿个铝饮料罐（包括澳大利亚的300亿个），但由于铝板成形失败，存在有问题的废物水平。由于传统的成形和断裂极限模型的不准确性，目前对刚性包装部件的多阶段片材成形过程的模拟导致较高的废品率。在这项工作中的一个新的发展是一个非线性应变路径的设计，其目的是最大限度地提高铝合金的成形极限，并估计在早期模具设计阶段的颈缩或断裂极限的安全裕度。