基于EMD的挤压铸造压射运动参数分析  

Analysis of Injection Motion Parameters in Squeeze Casting Based on EMD

作　　者：伊晓浏 宋雷 李浩欣 Yi Xiaoliu;Song Lei;Li Haoxin(Guangzhou Communications Technician Institute;School of Mechanical and Electrical Engineering,Guangdong Polytechnic Normal University;College of Engineering,South China Agricultural University)

机构地区：[1]广州市交通技师学院 [2]广东技术师范大学机电学院 [3]华南农业大学工程学院

出　　处：《特种铸造及有色合金》2023年第12期1714-1717,共4页Special Casting & Nonferrous Alloys

基　　金：国家自然科学基金资助项目(51875209);广东省自然科学基金资助项目(2018A030313509);广东省高等学校科研特色创新项目(2019KTSCX086)。

摘　　要：压射过程是挤压铸造工艺的核心工艺环节,对压射运动参数的分析是实现压射过程精确控制的前提。以支承阶梯板为对象进行压射运动参数数据采集,提出了一种基于经验模态分解(EMD)的挤压铸造压射运动参数分析方法,通过对加速度曲线的分解,有效区分了压射过程不同的运动特性。通过对各阶IMF分析发现,冲头的运动特性可以分为3种类别,分别是IMF1表述的启停特性、IMF2~IMF7表述的谐波特性和IMF8~IMF9表述的趋势特性。The injection is the key point in squeeze casting process,and the premise for achieving precise control of the injection process is the analysis of the injection motion parameters.An approach to analyze the injection motion parameters of squeeze casting based on EMD was proposed by taking the supporting step plate as object to collect data of injection motion.By decomposing the acceleration curve,the various motion characteristics of the injection process were identified.By analyzing each stages of IMF,it was found that the motion characteristics of punch could be divided into three categories,namely the start-stop qualities expressed by IMF1,the harmonic qualities expressed by IMF2~IMF7,and the trend qualities expressed by IMF8~IMF9.

关 键 词：挤压铸造 EMD 运动参数 运动特性 

分 类 号：TG249.2[金属学及工艺—铸造]