山东快速成型技术又称快速原型制造技术，是现代制造技术的重要组成部分。快速成型设备可以直接、快速、精确地把设计构想或设计方案通过模型建立、近似处理和切片处理等过程转变为实际的零件原型或者直接制造零件，为零件的原型制作和设计构想的校验等方面提供了一种高成效低成本的实现手段，弥补了传统制造方法的不足。

Shandong rapid prototyping technology, also known as rapid prototyping manufacturing technology, is an important part of modern advanced manufacturing technology. The rapid prototyping equipment can directly, rapidly and accurately transform the design concept or design scheme into the actual part prototype or directly manufacture the parts through the process of model building, approximate processing and slicing, which provides a cost-effective means for the prototype production of parts and the verification of design concepts, and makes up for the shortcomings of traditional manufacturing methods.

快速成型的基本原理是基于“离散-堆积”方法，即“分层制造，逐层叠加”。快速成型制造的核心是模型的离散化处理和堆积加工。快速成型的具体过程包括：前处理（即零件三维模型的建立、近似处理、切片处理等）、分层叠加成型（截面轮廓的制造与堆积）和后处理（表面处理等）。

The basic principle of rapid prototyping is based on the "discrete stacking" method, that is, "layered manufacturing, layered stacking". The core of rapid prototyping manufacturing is the discrete processing and stacking processing of models. The specific processes of rapid prototyping include: pre-processing (that is, the establishment of 3D model of parts, approximate processing, slicing processing, etc.), layered overlay molding (manufacturing and stacking of profiles), and post-processing (surface treatment, etc.).

把所有零件的三维模型看作是由许多等厚度的二维平面层轮廓沿某一方向叠加而成的，即把零件三维模型划分为一层层的二维平面。因此根据零件的三维模型，先在CAD软件里将模型进行近似处理，然后到快速成型系统辅助软件中将近似处理后的模型进行分层切片，得到各层截面的轮廓。

The 3D model of all parts is regarded as the superposition of many 2D plane layers with equal thickness along a certain direction, that is, the 3D model of the part is divided into layers of 2D planes. Therefore, according to the 3D model of the part, first approximate the model in CAD software, and then slice the approximate model layer by layer in the rapid prototyping system assistant software to obtain the profile of each layer of section.

按照这些轮廓，激光束选择性一层层地切割原材料，或固化一层层的液态树脂，烧结一层层的粉末材料，或喷射源选择性地喷射一层层的粘接剂或热熔材料等，形成各截面轮廓并逐步沿着加工方向堆积叠加成三维实体。对于大部分的快速成型设备，其实质都是把零件看成一层层的平面轮廓堆叠而成。

According to these profiles, the laser beam selectively cuts raw materials layer by layer, or solidifies layers of liquid resin, sinters layers of powder materials, or the jet source selectively sprays layers of adhesives or hot-melt materials, forming various cross sections and gradually stacking them along the processing direction to form three-dimensional entities. For most rapid prototyping equipment, its essence is to stack parts as layers of plane contours.

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