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中的废物。每年生产超过2000亿铝制卧室罐（包括在澳大利亚的300亿），但由于铝板形成失败而导致的浪费水平有问题。由于常规形成和断裂极限模型的不准确性，对刚性包装组件的多阶段形成过程的当前模拟导致更高的排斥率。这项工作中的新开发是非线性应变路径的设计，该路径旨在最大化铝合金的形成极限，并在早期的模具设计阶段估算到颈部或断裂极限的安全余量。