Development of a 3D multiphysics model to analyse the thermo-mechanical effect of coolants in metal cutting

开发 3D 多物理场模型来分析金属切削中冷却剂的热机械效应

• 批准号: 403801854
• 负责人: Professor Dr.-Ing. Thomas Bergs, since 7/2019
• 金额: --
• 依托单位: Werkzeugmaschinenlabor - WZL
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2018
• 资助国家: 德国
• 起止时间: 2017-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/403801854?language=en
• 关键词: Development; 3D; multiphysics; model; analyse

Coolants are still indispensable in many cases to realize safe and economical machining processes. Prior research focused on empirical studies regarding this topic and mainly investigated the effects of different coolant strategies on tool wear, forces, chip breakage etc. Analyses based on simulation models were limited to basic and simplified cases. Therefore the objective of this project is to develop a 3D multiphysics model to analyze the thermal and mechanical effects of the coolant used in metal cutting. In this context a model which simulates the formation of chips will be directly coupled with a model that simulates the thermal and mechanical behavior of the coolant jet. This approach enables the user to directly analyze the interdependencies between the chip formation and coolant jet. Especially when high pressures and flow rates are used in cutting of difficult-to-cut materials, such a model delivers valuable information for an effective and efficient design of process, tool and coolant supply.

在许多情况下，冷却剂对于实现安全和经济的加工过程仍然是必不可少的。以前的研究集中在实证研究，关于这一主题，主要研究了不同的冷却剂策略对刀具磨损，力，断屑等的影响。基于仿真模型的分析仅限于基本和简化的情况下。因此，本项目的目标是开发一个三维多物理场模型来分析金属切削中使用的冷却剂的热效应和机械效应。在本文中，模拟切屑形成的模型将直接与模拟冷却剂射流的热和机械行为的模型耦合。这种方法使用户能够直接分析切屑形成和冷却剂射流之间的相互依赖关系。特别是当在难切削材料的切削中使用高压和高流速时，这种模型为有效和高效的工艺、刀具和冷却液供应设计提供了有价值的信息。