Metal forming Modelling and Experiments

金属成型建模和实验

基本信息

批准号：
RGPIN-2014-06656
负责人：
Champliaud, Henri
金额：
$ 1.75万
依托单位：
École de technologie supérieure
依托单位国家：
加拿大
项目类别：
Discovery Grants Program - Individual
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=638553
关键词：
Metal forming Modelling Experiments

项目摘要

METAL FORMING MODELLING AND EXPERIMENTSThe objective of this research proposal is the development of a high tech heat assisted spinning process for hard-to-shape high strength materials through a combination of experiments and efficient numerical simulations of this complex metal forming process. Sheet-metal spinning is an effective method for transforming flat sheet metal into hollow shapes, usually with axisymmetric profiles. The method uses a tool i.e. a roller which forces a metal blank onto a revolving mandrel. The roller is pressed against the blank and is moved axially into complex trajectories to achieve finally a hollow-shaped product. To obtain the right shape at the lowest possible manufacturing cost, experiments will be conducted to characterize the base materials’ properties. These properties will be used to build an efficient finite element model of the process, including the heating strategy which will be first directly linked to the roller displacement and will be later separately controlled in displacement. Through real cold and hot spinning experiments a valuable database will be built and used for validation of non-linear dynamic finite element simulations. The goal is to bring the conventional spinning process to a new technological level by adding high tech heating sources (like laser heating) in the forming steps of hard to shape high strength materials, keeping material properties, acceptable surface state and maintaining the heat assisted spinning operation at the lowest cost as possible.

金属形成建模和实验该研究建议的目的是开发高科技热辅助旋转过程，通过实验和对这一复杂金属形成过程的有效数值模拟的结合，用于难以形状的高强度材料。钣金旋转是将平板金属转化为空心形状的有效方法，通常具有轴心分布。该方法使用工具，即将金属毛坯迫使旋转式mandrel上的滚筒。将滚筒压在空白上，并将轴向移动到复杂的轨迹中，以达到最终的空心产物。为了以最低的制造成本获得正确的形状，将进行实验以表征基本材料的特性。这些属性将用于构建该过程的有限有限元模型，包括首先将其直接链接到滚筒位移的加热策略，并随后在位移中单独控制。通过真正的冷和热旋转实验，将构建有价值的数据库，并用于验证非线性动态有限元模拟。目的是通过在难以塑造高强度材料，保持材料特性，可接受的表面状态并以最低成本的最低成本的最低成本中，以最低的成本来使传统的旋转过程提升到新的技术水平。