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Thermomechanical compensation for hard broaching of thin wall components

薄壁部件硬拉削的热机械补偿

基本信息

批准号：
504990034
负责人：
Professor Dr.-Ing. Volker Schulze
金额：
--
依托单位：
Institut für Produktionstechnik (WBK)
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
资助国家：
德国
起止时间：
项目状态：
未结题

来源：
https://gepris.dfg.de/gepris/projekt/504990034?language=en
关键词：
Thermomechanical compensation hard broaching thin

项目摘要

The aim of this research project is the development of a compensation method which, through a combination of distortion engineering and softsensor, enables a thermo-mechanical compensation of the hard broaching process to minimize workpiece distortion. The process chain for thin-walled internal gears, as used in electric powertrains, is chosen as the demonstration process. In the first phase, the distortion compensation potential through a thermomechanical actuator system will be investigated. This system applies thermal and mechanical point loads on the workpiece profile, which superimposes the loads generated by the broaching process. The effect of these loads means that the required target geometry is achieved after the component has cooled down and relieved. The effect of these loads means that the required target geometry is achieved after the component has cooled down and relieved. The existing distortions and distortion potential carriers are known. The compensation method should also take into account the initial state in the form of existing distortion and distortion potential carriers from previous process steps, as well as the process-inherent influence in the hard broaching process. The interactions between the component characteristics, the broaching process and the compensation system are identified and modelled leading to a mechanism-based metamodel able to predict and compensate the distortion generated by the broaching process.

本研究项目的目的是开发一种补偿方法，通过变形工程和软测量的结合，使硬拉削过程的热机械补偿，以最大限度地减少工件变形。选择电动动力总成中使用的薄壁内齿轮的工艺链作为演示工艺。在第一阶段，将研究通过热机械致动器系统的失真补偿潜力。该系统在工件轮廓上施加热和机械点载荷，这些载荷叠加在拉削过程产生的载荷上。这些载荷的作用意味着在部件冷却和卸载后实现所需的目标几何形状。这些载荷的作用意味着在部件冷却和卸载后实现所需的目标几何形状。现有的失真和失真潜在载波是已知的。该补偿方法还应考虑以现有变形和来自先前工艺步骤的变形潜在载体的形式的初始状态，以及硬拉削工艺中的工艺固有影响。的组件特性，拉削过程和补偿系统之间的相互作用被识别和建模，导致一个基于机制的元模型能够预测和补偿由拉削过程中产生的变形。