基于六西格玛管理的汽车助力器螺母安装工艺研究

Research on the Installation Process of Automobile Booster Nut Based on Six Sigma Management

本文通过利用六西格玛质量分析方法对螺母安装工艺的数据进行分析,运用DMAIC改善逻辑,通过因子分析与数据验证,确定了螺母安装工艺中的工装、螺纹中径和螺纹牙型角为影响扭力超上限缺陷的关键因子,并通过优化工装安装方式,改进螺纹中径和螺纹牙型角,大幅降低了扭力超上限导致的产品不良率。

This paper analyzes the data of the nut installation process by using the Six Sigma quality analysis method,uses DMAIC to improve the logic,and through factor analysis and data verification,it is determined that the tooling,the thread pitch diameter and the thread profile angle in the nut installation process are the influencing torques.The key factor of exceeding the upper limit defect,and by optimizing the tooling installation method,improving the thread pitch and thread profile angle,greatly reducing the product defect rate caused by the torque exceeding the upper limit.