期刊论文

Repair of Thin-walled Notch Defects Based on the Layered Variable Scan Path Method

中文

机械工程师

1002-2333

2022

03

28-30+33

本校为第一机构

为了修复金属薄壁的缺口缺陷,首先分析调查激光金属直接成形工艺的加工参数对单道沉积层的几何参数的影响规律,采用控制变量法进行单轨道熔覆成形实验,利用光学影像仪检测单道沉积层的水平方向宽度值与竖直方向高度值,选用线性回归的数学方法获得激光功率与单道沉积层几何参数值的数学关系式,以及激光头运动速度与单轨道几何参数的数学表达式。采用水平分层、分层变扫描路径法在薄壁缺口处激光金属直接成形上表面平整的修复层,成功修复金属薄壁的缺口缺陷。检测数据表明,单道沉积层的水平方向宽度值主要由激光的功率决定;单道沉积层的竖直方向高度值主要取决于激光头运动速度;修复层与薄壁缺口缺...

In order to repair metal thin-walled notch defects,this paper analyzes and investigates the influence of processing parameters of laser metal direct forming process on the geometric parameters of single-pass deposited layer.The single-track cladding forming experiment is carried out using the controlled variable method.An optical imager is used to detect the horizontal width and vertical height of the single-track deposition layer.The mathematical method of linear regression is used to obtain the mathematical relationship between the laser power and the geometric parameters of the single-track...