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非常迅速。该技术通过与精密铸造、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 value since its inception. Combined with precision casting, machining and other manufacturing methods, this technology has become an effective method for manufacturing models and parts, and has been widely used in aviation, automobile, electronics, military equipment, building models and other fields.

山东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（材料堆积）的工作过程。目前，快速成型比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）。

Shandong 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 relatively mature process methods of rapid prototyping include selective laser sintering (SLS), light curing solid 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形状的零件，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别有效。图1、图2即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 of almost any geometric shape, and is particularly effective for forming parts of hollow structures (hollowed-areas), sockets with sockets, and cantilever structures. Figure 1 and Figure 2 are typical parts produced by selective laser sintering 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：先在工作台上铺上一层粉末，在计算机控制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。

Selective laser sintering usually uses plastic, metal and ceramic powders as molding materials. The process is as follows: first lay a layer of powder on the worktable, and selectively sinter with laser beam under computer control (the hollow part of the part is not sintered, but is still powder material), and the sintered part is solidified together to form the solid part of the part. After the completion of one layer, proceed to the next layer, and the new layer and its upper layer are firmly sintered together. After all the sintering is completed, remove the excess powder to get the sintered parts.

目前，熔模精密铸造在生产结构复杂，用模具几乎无法实现产品时通常采用快速成型制作其生产所用的蜡模。采用选择性激光烧结与熔模精密铸造结合在一起解决生产难题的方法已经得到了很好的应用。更多相关内容就来我们网站http://www.metferro.com咨询吧！

At present, when the production structure of investment casting is complex and it is almost impossible to achieve products with molds, the wax molds used in its production are usually made by rapid prototyping. The method of combining selective laser sintering with investment casting to solve production problems has been well applied. Come to our website for more relevant content http://www.metferro.com Ask!