CAJ | 학술논문

减少工序的波动水平是提高工序加工质量的关键,在多工序加工过程中,由于工序间存在着复杂的交互影响效应,波动源的有效识别是一个重要问题.针对这一问题,提出一种基于误差传递网络的节点波动效应评价方法,基于线性关系建立工序间波动传递方程,进而构建由零件加工特征、加工要素节点组成工序流误差传递网络,在此基础上,定义节点的波动传递系数,并给出不同节点的波动效应值量化方法,通过考察各节点波动效应值,确定工序流需要优先进行改进的工序及加工要素节点.一个三工序加工过程被用于验证提出方法,结果表明该方法能够识别工序流薄弱工序节点.
감소공서적파동수평시제고공서가공질량적관건,재다공서가공과정중,유우공서간존재착복잡적교호영향효응,파동원적유효식별시일개중요문제.침대저일문제,제출일충기우오차전체망락적절점파동효응평개방법,기우선성관계건립공서간파동전체방정,진이구건유령건가공특정、가공요소절점조성공서류오차전체망락,재차기출상,정의절점적파동전체계수,병급출불동절점적파동효응치양화방법,통과고찰각절점파동효응치,학정공서류수요우선진행개진적공서급가공요소절점.일개삼공서가공과정피용우험증제출방법,결과표명해방법능구식별공서류박약공서절점.
It is a key issue to reduce process fluctuation for improving machining quality of workpiece. For multistage machining processes, it is difficult to identify the fluctuation sources of process flow due to the complicated interactive effects among different stages. In view of this issue, a fluctuation evaluation and identification method is proposed based on machining error propagation network. A fluctuation propagation equation of process flow is established, and a machining error propagation network is constructed, which consists of machining form feature and machining element nodes. Based on this, fluctuation propagation coefficient is defined, and node state variation risk (NSVR) of different node is measured, and the priority of node can be identified according to its NSVR. A three stage process of a box part is used to verify the proposed method.