In the view of the application of the individual emboss model in the construction and process industry,the two-dimensional color images were firstly transformed into grayscale images,and then the corresponding patterns were produced by grayscale images to generate emboss and 3D model.Secondly,choosing the environmentally friendly,renewable wood-plastic composite materials as 3D printing materials,studying the appropriate processing technology,3D printing was generated based on the selective laser sintering method.The sintering parameters were as follows:the preheating temperature was 80 degree,the scanning direction is X and Y direction alternates,the scanning path was optimized for the depth-breadth mixed principle,the laser scanning speed was 2 000 mm/s,the scanning line width was 0.2 mm,the laser power was 12 w and the layer thickness was 0.1 mm.After printing,high pressure air was used to clear floating powder.Finally,after the waxing,activation treatment and other post-treatment process to protect the substrate,reducing the surface roughness of the workpiece and the porosity of the material to improve the mechanical strength,the emboss model was electroless coppered and obtained a uniform texture of the metal copper coating.This paper studied the key technologies of personalized emboss processing,which had the wide application and fast processing speed and used energy-saving and environmentally friendly materials.Different treatment processes could be carried out according to different requirements,which had important research value.%针对个性化浮雕模型在建筑、工艺行业的应用,首先将二维彩色图片转成灰度图,并将灰度图制作出相应的样式,生成浮雕及其三维模型.随后选择环保、可再生的木塑复合材料作为3D打印基材,通过选择性激光烧结的方法,研究合适的加工工艺,将已生成的三维浮雕进行3D打印.烧结加工参数如下:预热温度为80℃,扫描方向为X、Y方向交替,扫描路径优化为深度-广度混合原则,激光扫描速度2 000 mm/s,扫描线宽0.2 mm,激光功率12 w,分层厚度0.1 mm.打印后,使用高压空气清浮粉的方式清粉.最后经过渗蜡、活化处理等后处理工艺以保护基材,降低制件的表面粗糙度、降低材料孔隙率以提高力学强度,对浮雕模型进行化学镀铜,得到质地均匀的金属质感铜镀层.本文研究了个性化浮雕的的加工全过程及其中的关键技术,该方法适用面广、处理速度快、所用材料节能环保,并可根据不同需求进行不同后处理工艺,具有重要的研究价值.
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