当前位置: X-MOL 学术IOP Conf. Ser. Mater. Sci. Eng. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Selection of rational modes of laser powder cladding
IOP Conference Series: Materials Science and Engineering Pub Date : 2020-12-01 , DOI: 10.1088/1757-899x/971/2/022093
A N Gots , D S Gusev , A B Lukhter , A V Zavitkov

A brief overview of the surfacing used on the working surfaces of industrial equipment parts is given. The most universal method of laser surfacing is considered laser powder cladding. The results of experimental studies on the choice of parameters of surfacing modes for a single track are presented: laser power, mass flow rate of powder for deposition, and surfacing speed. Samples made of 08H18N10T steel were used as a substrate for testing. Laser powder cladding was performed on a robotic complex with an ytterbium fiber laser and a coaxial powder feed. When measuring macrogeometry, the quality of a single track was evaluated by its geometric dimensions: height, width, and depth of the layer mixing of the surfaced and base materials (substrate). Variable parameters of the surfacing process were the output power of laser radiation, processing speed, and mass flow rate of the powder. The quality of a single clad track was evaluated by its geometric dimensions: height, width, and depth of the layer mixing of the surfaced and base materials (substrate). it is Shown that the value of d depends on the mass flow rate and the power of the laser radiation: when increasing mass flow rate, it is necessary to increase power of the laser radiation to ensure a constant value of depth of the layer mixing. The shape of the deposited clad track is close to a half-ellipse only when the laser power not more than 1000 W and mass flow rate 15 g/min. The height of depends on the value of mass flow rate and the laser power: when increasing mass flow rate, an increase in laser power is required in approximately the same ratio. The width of the surfacing with increasing mass flow rate at a constant power of laser radiation decreases due to the fact that the cooling rate of the liquid phase of the metal melt is very high and only superheated melt can increase the width of the clad track.



中文翻译:

激光粉末熔覆合理模式的选择

简要概述了工业设备零件工作表面上使用的表面处理。最普遍的激光表面处理方法被认为是激光粉末熔覆。介绍了单道堆焊模式参数选择的实验研究结果:激光功率、沉积粉末的质量流量和堆焊速度。以 08H18N10T 钢制成的样品作为测试基材。激光粉末熔覆是在具有镱光纤激光器和同轴粉末馈送的机器人复合体上进行的。在测量宏观几何时,单个轨道的质量通过其几何尺寸进行评估:高度、宽度和表面材料和基础材料(基板)混合层的深度。表面处理过程的可变参数是激光辐射的输出功率,处理速度和粉末的质量流量。单个复合轨道的质量通过其几何尺寸进行评估:表面材料和基础材料(基板)混合层的高度、宽度和深度。表明 d 的值取决于质量流量和激光辐射的功率:当增加质量流量时,需要增加激光辐射的功率以保证层混合深度的恒定值。只有在激光功率不超过 1000 W 和质量流量为 15 g/min 时,沉积的包层轨迹的形状才接近半椭圆形。的高度取决于质量流量和激光功率的值:当增加质量流量时,需要以大致相同的比例增加激光功率。

更新日期:2020-12-01
down
wechat
bug