Mathematical modeling of the aluminum extrusion process to support the development of a virtual optimization software package

铝挤压过程的数学建模支持虚拟优化软件包的开发

• 批准号: 522095-2017
• 负责人: Wells, Mary
• 金额: $ 1.82万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Engage 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=639960
• 关键词: Mathematical; modeling; aluminum; extrusion; process

Over the last couple of years, Castool (a tool designer and manufacturer for the extrusion industry) havedeveloped a software tool called VOS (Visual Optimization Software). The original purpose for this softwarewas to assist extrusion plants in optimizing the productivity of their extruders based on the alloy and profilethey were extruding. Although the original intent was to use the VOS to help optimize and predictproductivity, the reality is that VOS has ended up more as a die database with historical information. What islacking is the quantitative knowledge of the relationship between the extrusion variables and the pressurerequired and exit temperature. Castool has started to put together something more useful from the VOS whichwill tell the extruder what productivity they can expect for any combination of profile, die, billet and pressset-up however the still lack quantitative knowledge on the relationship between these variables.Initially, Castool was going to convert real pressure data (from Almag in Brampton) into temperature andtherefore speed, but this is so approximate that it is unlikely to be of great use. Castool intend to continue thisconversion of pressure to temperature but had difficulties getting good information from Almag.What Castool would like to do now is develop a simple and fast, almost real-time, parametric models with thevariables, extrusion ratio, billet temperature, container temperature and predict maximum speed and diebearing and extrusion exit temperatures.The focus of this research will be to develop a mathematical model to accurately predict the temperature andextrusion load for a range of cases so that correlations between the tooling temperature, extrusion ratio, ramspeed and billet temperature can be made with respect to extrudate temperature upon exit and pressure during

在过去的几年里，Castool（挤压行业的工具设计者和制造商）开发了一款名为 VOS（视觉优化软件）的软件工具。该软件的最初目的是帮助挤压工厂根据挤压的合金和型材优化挤压机的生产率。尽管最初的目的是使用 VOS 来帮助优化和预测生产力，但现实是 VOS 最终更多地成为包含历史信息的模具数据库。缺乏的是挤出变量与所需压力和出口温度之间关系的定量知识。 Castool 已经开始从 VOS 中整合一些更有用的东西，这将告诉挤出机对于型材、模具、坯料和压机装置的任意组合，他们可以期望获得什么样的生产率，但是仍然缺乏关于这些变量之间关系的定量知识。最初，Castool本来打算将真实压力数据（来自布兰普顿的 Almag）转换为温度和速度，但这太近似了，不太可能有很大用处。 Castool 打算继续这种压力到温度的转换，但很难从 Almag 获得良好的信息。Castool 现在想做的是开发一个简单、快速、几乎实时的参数模型，其中包含变量、挤压比、坯料温度、容器温度并预测最大速度以及模具轴承和挤压出口温度。这项研究的重点是开发一个数学模型来准确预测一系列情况下的温度和挤压载荷，以便模具温度、挤压比、冲压速度和坯料温度可以根据出口时的挤出温度和期间的压力来确定