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山東嘉瑞杰機(jī)械科技有限公司
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快速成型的使用離不開這三個(gè)過程
來源：http://scyyst.com作者：山東嘉瑞杰機(jī)械科技有限公司發(fā)布時(shí)間：2022-11-08
快速成型制造的核心是模型的離散化處理和堆積加工，具體過程包括前處理，即零件三維模型的建立、近似處理、切片處理等，下面山東快速成型廠家就來為您講解一番。
The core of rapid prototyping manufacturing is the discrete processing and stacking processing of models. The specific process includes pre-processing, that is, the establishment of three-dimensional models of parts, approximate processing, slicing processing, etc. The Shandong rapid prototyping manufacturer will explain it to you.
（1）三維模型建立。
(1) 3D model establishment.
快速成型是快速成型系統(tǒng)的輔助軟件中將產(chǎn)品或零件的三維模型進(jìn)行切片處理，所以三維模型的建立關(guān)重要，是快速成型制造的基礎(chǔ)。三維模型的建立是將產(chǎn)品的結(jié)構(gòu)數(shù)據(jù)信息輸入到計(jì)算機(jī)中生成三維模型的過程。
Rapid prototyping is firstly the assistant software of rapid prototyping system to slice the three-dimensional model of products or parts. The establishment of 3D model is the process of inputting the product structure data information into the computer to generate the 3D model.
常用的三維建模方法有以下兩種：一是利用利用CAD軟件進(jìn)行建模，設(shè)計(jì)人員根據(jù)產(chǎn)品的設(shè)計(jì)要求（結(jié)構(gòu)尺寸等）在具體建模軟件中設(shè)計(jì)三維模型；另一種是對(duì)具體實(shí)物進(jìn)行數(shù)字化處理，通過相關(guān)工具或手段將食物信息數(shù)據(jù)轉(zhuǎn)化為快速成型系統(tǒng)可以識(shí)別的數(shù)據(jù)。
There are two common 3D modeling methods: one is to use CAD software for modeling, and designers design 3D models in specific modeling software according to product design requirements (structural dimensions, etc.); The other is to digitize the specific objects and convert the food information data into the data that can be recognized by the rapid prototyping system through relevant tools or means.
（2）三維模型的近似處理。
(2) Approximate processing of 3D models.
快速成型系統(tǒng)無法直接識(shí)別零件的三維模型，在使用快速成型系統(tǒng)加工零件時(shí)須將三維模型進(jìn)行相關(guān)的處理。目前常見的三維模型近似處理方法是用一系列的小三角形平面來逼近自由曲面。
The rapid prototyping system cannot directly identify the 3D model of the part, so the 3D model must be processed when the rapid prototyping system is used to process the part. At present, the common 3D model approximation method is to use a series of small triangle planes to approximate the free surface.
在實(shí)際處理過程，根據(jù)曲面的形狀選擇合適的三角形的大小，從而保證不同曲面的近似精度。經(jīng)過近似處理的三維模型文件稱為STL格式文件，其中三維模型被劃分為一系列相連的空間三角形。典型的CAD軟件都有轉(zhuǎn)換和輸出STL格式文件的接口，例如在SolidWorks中，可以將三維模型另存為*.stl格式文件。
In the actual processing, the appropriate triangle size is selected according to the shape of the surface to ensure the approximate accuracy of different surfaces. The approximated 3D model file is called STL format file, in which the 3D model is divided into a series of connected spatial triangles. Typical CAD software has the interface to convert and output STL files. For example, in SolidWorks, you can save 3D models as *. stl files.
（3）三維模型的切片處理。
(3) Slicing of 3D models.
快速成型制造是根據(jù)零件的截面輪廓進(jìn)行堆積疊加，在進(jìn)行快速加工前須從近似處理后的三維模型上沿設(shè)定的成型高度方向，每隔一定的間隔高度進(jìn)行切片處理，提取零件的截面輪廓，這個(gè)過程即為切片處理。
Rapid prototyping manufacturing is to stack and stack according to the profile of the part. Before rapid processing, slice from the approximated 3D model along the set molding height direction every certain interval height to extract the profile of the part. This process is called slicing.
間隔高度的大小可以根據(jù)被加工零件的精度和生產(chǎn)率的要求選定，間隔愈小，精度愈高，但成型時(shí)間也就愈長(zhǎng)；間隔的范圍一般取在0.05～0.5mm之間，常用為0.1mm左右。切片的間隔高度選定之后，成型時(shí)每層的零件輪廓厚度也就被確定，即每層材料厚度等于間隔高度。
The spacing height can be selected according to the requirements of the precision and productivity of the parts to be processed. The smaller the spacing, the higher the precision, but the longer the molding time; The interval is generally 0.05~0.5mm, usually about 0.1mm. After the interval height of slices is selected, the part contour thickness of each layer is determined during molding, that is, the material thickness of each layer is equal to the interval height.
快速成型的使用離不開這三個(gè)過程的相關(guān)內(nèi)容就是這樣了，您對(duì)此有什么理解或者問題或者需求，隨時(shí)來我們網(wǎng)站http://scyyst.com進(jìn)行咨詢吧！
The use of rapid prototyping is inseparable from the relevant contents of these three processes. If you have any understanding or questions or needs, please come to our website at any time http://scyyst.com Consult!
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