目前山东快速成型技术在熔模铸造中的相关应用状况，并对应用过程中产生的问题的绽开了探讨。

At present, the application of rapid prototyping technology in investment casting in Shandong Province is related, and the problems arising from the application process are discussed.

快速成型技术自问世以来以其广泛的应用领域和应用价值发展特别快速。该技术通过与铸造、机械加工等制造手段相结合，已经成为模型和零件制造的有效方法，在航空、汽车、电子、军事装备、建筑模型等领域得到了广泛应用。

Rapid prototyping technology has developed rapidly with its extensive application fields and application values since its inception. This technology has become an effective method for model and part manufacturing by combining with casting, machining and other manufacturing methods, and has been widely used in aviation, automobile, electronics, military equipment, building models and other fields.

快速成型技术是由三维转化成二维(离散化)，再由二维累积到三维(材料积累)的工作过程。目前，快速成型较成熟的工艺方法有选择性激光烧结(SLS)、光固化立体造型(SLA)、熔融沉积造型(FDM)以及分层实体制造(LOM)。

Rapid prototyping technology is a working process that transforms from 3D to 2D (discretization), and then accumulates from 2D to 3D (material accumulation). At present, the more mature process methods of rapid prototyping include selective laser sintering (SLS), light curing stereo modeling (SLA), melt deposition modeling (FDM) and layered solid manufacturing (LOM).

选择性激光烧结技术成型过程与零件的复杂程度无关,是真正的自由成型。SLS几乎可以成型任意几何外形的零件，.对中空结构(hollowedareas)、槽中套槽(notcheswithinnotches)及悬臂结构(overhangs)等结构的零件成型特殊有效。还有为选择性激光烧结技术生产的典型零件。

The forming process of selective laser sintering technology has nothing to do with the complexity of the parts, and it is a true free forming. SLS can form parts with almost any geometric shape. It is particularly effective for forming parts with hollow structures, notches with in notches, and overhung structures. There are also typical parts produced for SLS technology.

选择性激光烧结通常采用塑料、金属、陶瓷的粉末作为.成型材料。其工艺过程是:

The powder of plastics, metals and ceramics is usually used as the forming material in selective laser sintering. The process is as follows:

先在工作台上铺上一层粉末，在计算机掌握下用激光束有选择地进行烧结(零件的空心部分不烧结，仍为粉末材料),被烧结部分则固化在一起构成零件的实心部分。一层完成后再进行下一层，新一层与其上一层牢牢地烧结在一起。全部烧结完成后，去除多余的粉末，便得到烧结成的零件。

First, lay a layer of powder on the workbench, and selectively sinter with the laser beam under the control of the computer (the hollow part of the part is not sintered, but is still a powder material). The sintered parts are solidified together to form a solid part of the part. After the completion of one layer, the next layer shall be carried out, and the new layer shall be firmly sintered with the previous layer. After all sintering is completed, the surplus powder is removed to obtain sintered parts.

快速成型技术在熔模铸造中的应用部分内容能了解很多，不过您也要注意在使用中的问题，更多相关事项就来我们网站http://www.metferro.com咨询吧！

I can learn a lot about the application of rapid prototyping technology in investment casting, but you should also pay attention to the safety problems in use. More related matters can be found on our website http://www.metferro.com Consult!