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激光快速成型在农机制造中的应用!
来源：http://dcjzl.com作者：哈希28单双发布时间：2020-02-04
农业机械生产过程具有特殊性。零件多具有较复杂的形状，如耕地机械、整地机械和收获机械等。此外，复杂曲面较多，如犁体曲面、旋耕机旋刀、水泵叶轮和送料螺旋等，而且根据具体的生产情况不同，其形状还需相应调整。
The production process of agricultural machinery is special. Most of the parts have complex shapes, such as farming machinery, land preparation machinery and harvesting machinery. In addition, there are many complex curved surfaces, such as plow body curved surface, rotary blade of rotary cultivator, impeller of water pump and feeding screw, etc. Moreover, according to different production conditions, its shape needs to be adjusted accordingly.
因此，利用传统的机械加工方法研制这种农业机械零件，不仅研制开发时间长，加工工艺复杂，而且很难达到理想的效果。运用的激光快速成型集成技术，不仅大大缩短新产品的开发周期，降低开发成本，而且制造质量也优于传统制造方法。
Therefore, using the traditional machining method to develop the agricultural machinery parts, not only the development time is long, the processing technology is complex, but also it is difficult to achieve the desired results. Using advanced laser rapid prototyping integration technology, not only greatly shorten the development cycle of new products, reduce development costs, but also the manufacturing quality is better than the traditional manufacturing methods.
激光选区烧结是快速成型制造中的重要工艺方法之一。该技术采用逐层材料添加的原理，对三维实体模型进行切片分区处理，生成激光烧结的扫描路径.
Selective laser sintering is one of the important processes in rapid prototyping. Based on the principle of layer by layer material addition, the 3D solid model is sliced and divided into sections to generate the scanning path of laser sintering
然后，通过x-Y激光扫捕仪使激光束沿扫描路径扫描，逐层烧结同化同体粉末材料(如塑料粉、尼龙粉、蜡、陶瓷或)、金属与粘结剂的混合粉或金属粉等，经过烧结与层层叠加后，更终形成所需的三维工件。
Then, the laser beam is scanned along the scanning path by the X-Y laser scanning instrument, and the homogeneous powder materials (such as plastic powder, nylon powder, wax, ceramic or), the mixed powder or metal powder of metal and binder are assimilated layer by layer. After sintering and stacking layer by layer, the required three-dimensional workpiece is finally formed.
这种制造方法具有成型速度快、精度高、表面质量好、后置处理简单和省时等特点，是一个具有生命力的技术，为制造技术的发展创造了一种新方法。
This manufacturing method has the characteristics of fast forming speed, high precision, good surface quality, simple post-processing and time-saving. It is a technology with vitality and creates a new method for the development of manufacturing technology.
快速成型技术就是直接根据CAD模型快速生产样件或零件的技术总称。它集成了CAD技术、数控技术、激光技术和材料技术等现代科技成果，是制造技术的重要组成部分。
Rapid prototyping technology is the general term of rapid production of samples or parts directly based on CAD model. It integrates modern scientific and technological achievements such as CAD technology, numerical control technology, laser technology and material technology, and is an important part of advanced manufacturing technology.
它能根据CAD模型(电子模型)自动、直接、快速、精确地将设计思想物化为具有一定功能的原型或直接制造零件，在不用模具和工具的条件下生成几乎任意复杂的零部件，解决了从设计到制造的快速对接问题。
It can automatically, directly, quickly and accurately materialize design ideas into prototypes with certain functions or directly manufacturing parts according to CAD model (electronic model), and generate almost any complex parts without dies and tools, thus solving the problem of rapid docking from design to manufacturing.
因此，该技术可以对产品设计进行快速评价及修改，有效地缩短了产品的研发周期，降低了开发成本，满足了当今竞争口益激烈的市场对新产品快速开发和快速制造的要求，提高了产品的市场竞争力和企业的综合竞争能力。
Therefore, the technology can quickly evaluate and modify product design, effectively shorten the product R & D cycle, reduce the development cost, meet the requirements of rapid development and rapid manufacturing of new products in today's competitive market, and improve the market competitiveness of products and the comprehensive competitiveness of enterprises.
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