山东快速成型的制造工艺是一个基于材料堆积原理的生产过程。该工艺是取得材料堆积的规划路径和限制模式，通过堆积将材料叠加或熔合起来形成三维实体。快速成型制造工艺的全过程可以归纳为如下3个步骤：

The manufacturing process of rapid prototyping in Shandong is a production process based on the principle of material accumulation. This process is to obtain a planned path and limiting mode for material stacking, by stacking or fusing materials together to form a three-dimensional solid. The whole process of rapid prototyping manufacturing process can be summarized into the following three steps:

1）前处理。包括三维模型的构建、模型的三角化处理和模型的切片处理。

1) Pre processing. This includes the construction of 3D models, triangulation of models, and slicing of models.

三维的CAD造型由计算机软件建造，二维工程图向三维模型转化，或来自于实体模型的光学扫描和CT数据等点云数据。

The 3D CAD modeling is built by computer software, converted from 2D engineering drawings to 3D models, or point cloud data such as optical scanning and CT data from solid models.

对于包含不规则类型的自由曲面，在加工之前应对模型做出必要的处理。STL格式是目前快速成型技术中的通用接口文件。采用大量的三角形小平面去逼近原始模型，并且可以调整精度。

For free form surfaces containing irregular types, necessary processing should be made to the model before processing. STL format is a general interface file in current rapid prototyping technology. Using a large number of triangular facets to approximate the original model and adjust accuracy.

根据待制造零件的外形特征选取适宜的加工方向，沿着成型的高度方向用大量具有特定间隔的平面去切割模型，完成这些截面的轮廓信息提取。采用的间隔越密实，获得的加工精度越高。

Select an appropriate processing direction based on the shape characteristics of the parts to be manufactured, and cut the model along the height direction of the molding using a large number of planes with specific intervals to complete the contour information extraction of these sections. The denser the spacing used, the higher the machining accuracy obtained.

2）分层叠加成型。包括三维模型的轮廓截面的形成和截面叠合。

2) Layered overlay forming. Including the formation and overlapping of contour sections of 3D models.

该步骤是快速成型技术的核心。在控制单元的控制下，对应的材料出口装置按切片处理后的截面信息，做点到点的扫描运动，在工作台面上逐层地堆积成型材料，将各层材料相互粘结成为三维实体。

This step is the core of rapid prototyping technology. Under the control of the central control unit, the corresponding material outlet device performs point-to-point scanning motion based on the cross-sectional information processed by slicing, stacking and forming materials layer by layer on the workbench, and bonding each layer of materials to form a three-dimensional solid.

3）处理。包括实体的分离、固化及表面处理等。

3) Processing. This includes the separation, solidification, and surface treatment of entities.

通过快速成型工艺叠层开成三维实体后，应完成分离等后处理任务，目的是除去废料和支承。对于结构强度较低的光固化成型的零件，还应进一步采用紫外光固化处理。将成型的实体零件从工作台里取出，进行必要的打磨、抛光或置于高温炉中烧结，以提高其硬度与强度。

After the rapid prototyping process is laminated into 3D solids, the separation and other post-processing tasks should be completed to remove waste and support. For parts with lower structural strength that are formed by UV curing, further UV curing treatment should be used. Remove the formed solid parts from the workbench and perform necessary polishing, polishing, or sintering in a high-temperature furnace to improve their hardness and strength.

快速成型制造工艺的基本原理与步骤相关事项就讲解到这里了，希望能够给您好的帮助，更多事项就来我们网站http://m.axcwv.cn咨询吧！

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