This paper presents a novel additive manufacturing process, namely the laser melting of polymer-metal colloids (LMC), which is advantageous for repairing features and reducing contamination sources. The developed polymer-metal colloids are conveyed via the designed spindle-driven dispensing system to demonstrate consolidations of the metallic phase onto heterogeneous substrate materials via laser melting. Modelling of the flow rate, velocity and pressure fields is linked to the geometric design of the mechanical devices in the spindle-driven process. The equilibriums of the heat transfer equations in the colloid element were initiated and presented for the estimations of input laser energy. When the input heat was absorbed by the colloid element, the average energy density could be obtained by the ratio of the overall energy density and the engaged laser scanning volume. In the experimental work of the validation tests, the polymer-metal colloid was consolidated on the substrate material with three different results: unconsolidated, partially consolidated and consolidated. The consolidation and bonding of metallic fractions on the heterogeneous substrate materials in the laser melting actions were evaluated and reported.

本文提出了一种新颖的增材制造工艺，即聚合物金属胶体（LMC）的激光熔化，这对于修复特征和减少污染源非常有利。研发的聚合物-金属胶体通过设计的主轴驱动分配系统进行输送，以证明通过激光熔化将金属相固结到异质基材上。流量，速度和压力场的建模与主轴驱动过程中机械设备的几何设计有关。胶体元件中的热传递方程式的平衡被启动，并被提出来估计输入激光能量。当输入的热量被胶体元素吸收时，平均能量密度可以通过总能量密度与接合的激光扫描体积之比获得。在验证测试的实验工作中，聚合物-金属胶体被固结在基材上，具有三种不同的结果：未固结，部分固结和固结。评估并报告了异质基底材料在激光熔化作用下金属部分的固结和结合。