基于加工工艺的活塞环质量损失特性预测研究  

Prediction of Piston Ring Quality Loss Characteristics Based on Machining Process

作　　者：程桃桃 刘新田 王进钢 CHENG Taotao;LIU Xintian;WANG Jin gang(School of Mechanical and Automotive Engineering,Shanghai University of Engineering Science,Shanghai 201620,China)

机构地区：[1]上海工程技术大学机械与汽车工程学院,上海201620

出　　处：《车用发动机》2025年第1期53-59,共7页Vehicle Engine

基　　金：上海三级高峰学科——材料科学与工程(高能光束智能加工与绿色制造)。

摘　　要：针对传统加工中质量损失检测延迟的问题,希望通过检测次品来减少损失,但发现次品时已经产生了损失,难以实现实时质量控制的目标。为解决这一问题,提出了一种基于加工过程的质量特性损失函数模型。以活塞环氮化过程为例,首先采用主成分分析法分析了影响氮化过程的主要因素,然后将其与非对称质量损失函数进行耦合,得到质量特性损失模型。此外,考虑到加工误差造成公差范围内的隐性质量损失,引入隐性质量损失-生产成本来计算并比较其固有可靠性。提出的损失模型能够提前预测到加工过程对质量的影响,有望实现实时性质量损失最小的控制目标。Aiming to address the issue of delayed detection of quality loss in traditional processing,it was desired to reduce losses by detecting defective products.However,it was found that losses had already occurred by the time defects were identified,making it difficult to achieve real-time quality control.The loss function model was proposed based on the quality characteristics of machining process.Taking the nitriding process of piston ring as an example,the main factors affecting the nitriding process were firstly analyzed by principal component analysis.These factors were then coupled with an asymmetric quality loss function to derive the quality characteristic loss model.Additionally,by considering the hidden quality loss within the tolerance range caused by processing errors,the hidden quality loss-production cost ratio was used to assess inherent reliability.The newly proposed loss model could predict the impact of processing on quality in advance and was expected to achieve real-time minimization of quality loss control objectives.

关 键 词：活塞环 主成分分析 质量特性 质量损失函数 可靠性 

分 类 号：TK421.9[动力工程及工程热物理—动力机械及工程]