Light curing rapid prototyping system and laser selective sintering rapid prototyping system are two main processing methods. So what are the similarities and differences between the two rapid prototyping designs?

　　1. 兩種快速原型技術的相似之處

　　1. Similarities between the two rapid prototyping technologies

　　這兩種成形技術的原理非常相似，另外都是作為手板式模具生產不可缺少的技術，在工業(yè)設計中也是應用了很多方法。

　　The principles of these two forming technologies are very similar. In addition, they are indispensable technologies for the production of hand-held die, and many methods are applied in industrial design.

　　2. 兩種快速原型技術的區(qū)別

　　2. Differences between two rapid prototyping technologies

　　3、光固化快速成型系統(tǒng)選區(qū)材料粉末材料激光燒結快速成型系統(tǒng)中采用一種液態(tài)光敏樹脂,形狀的光固化快速成型系統(tǒng)的優(yōu)勢是,明顯人大多能溶解所有粉狀材料,可用于制造原型或模型,產生的產品可以作為個樣品測試,以及裝配零件的結構。所以激光選擇燒結的方法可以使用很廣泛的材料，如尼龍材料，如PC材料，如其他蠟粉，甚至一些硬件材料都可以做。

　　3. The light curing rapid prototyping system uses a kind of liquid photosensitive resin in the selective material powder material laser sintering rapid prototyping system. The advantage of the shape light curing rapid prototyping system is that anyone can dissolve all powder materials, which can be used to manufacture prototypes or models, the products can be used as the first sample test, and the structure of assembly parts. So laser selective sintering method can be used in a wide range of materials, such as nylon materials, such as PC materials, such as other wax powder, and even some hardware materials.

　　加工的產品通過以上方法,精度相對較大的差異,但可以燒結選區(qū)激光燒結,很多材料,甚至一些不受歡迎的陶瓷層,所以更選區(qū)激光燒結過程具有廣泛的適用性、大范圍的應用行業(yè),吸引力強,這些特點也可以掩蓋他的準確性不高的缺點,和表面粗糙度,效率低下的問題。因為大多數客戶了解這些屬性，所以可以在挑選自己產品的過程中進行參考。

　　Through the above methods, the accuracy of processed products is relatively different, but selective laser sintering, many materials, even some unpopular ceramic layers can be sintered, so the selective laser sintering process has a wide range of applicability, wide range of application industries, strong attraction, these characteristics can also cover up the shortcomings of its low accuracy, surface roughness, and low efficiency. Because most customers understand these attributes, they can refer to them in the process of selecting their own products.

　　一般工藝，對產品精度要求高，表面光潔度要求高，適合于光固化成型快速成型，如果對一般大型產品，粗度要求高，產品價格相對低廉，則選擇光固化成型激光粉末燒結成型。

　　The general process requires high precision and surface finish of the product, which is suitable for the rapid prototyping of light curing. If the requirement of coarseness is high and the price of the product is relatively low for the general large-scale product, the laser powder sintering of light curing molding is selected.

　　SLA的優(yōu)勢

　　Advantages of SLA

　　1. 光固化成形法是一種較早出現(xiàn)的快速原型制造工藝，具有較高的成熟度和時間測試性。

　　1. UV curing is an earlier rapid prototyping manufacturing process with high maturity and time testability.

　　2. 樣機直接采用CAD數字模型制作，加工速度快，生產周期短，無需刀具和模具。

　　2. The prototype is directly made of CAD digital model, with fast processing speed and short production cycle, without cutting tools and dies.

　　3.它可以加工結構復雜或傳統(tǒng)方法難以成形的原型和模具。

　　3. It can process prototypes and dies with complex structure or difficult to be formed by traditional methods.

　　4. 使CAD數字模型直觀，降低錯誤修復成本。

　　4. Make the CAD digital model intuitive and reduce the cost of error repair.

　　5. 為實驗提供了樣本，對計算機仿真結果進行了驗證和校核。

　　5. Provide samples for the experiment, verify and verify the computer simulation results.

　　6. 可在線操作，遠程控制，便于生產自動化。

　　6. It can be operated online and controlled remotely, which is convenient for production automation.

　　SLA的缺陷

　　Defects of SLA

　　1. SLA系統(tǒng)成本高，使用維護成本高。

　　1. SLA system has high cost and high maintenance cost.

　　2. SLA系統(tǒng)是一種復雜的液體操作設備，需要惡劣的工作環(huán)境。

　　2. SLA system is a kind of complex liquid operation equipment, which needs a bad working environment.

　　3.塑件多為樹脂，強度、剛度、耐熱性有限，不利于長期保存。

　　3. Plastic parts are mostly resin, with limited strength, rigidity and heat resistance, which is not conducive to long-term preservation.

　　4. 預處理軟件和驅動軟件計算量大，與處理效果相關性高。

　　4. The pre-processing software and driver software have a large amount of calculation and high correlation with the processing effect.

　　5. 軟件系統(tǒng)復雜，難于上手，文件格式也不為大多數設計人員所熟悉。

　　5. The software system is complex and hard to use, and the file format is not familiar to most designers.

　　6. 立體固化技術由一家公司壟斷。

　　6. Stereoscopic curing technology is monopolized by one company.

　　二語習得的發(fā)展趨勢與展望

　　The development trend and Prospect of second language acquisition

　　立體固化的發(fā)展趨勢是高速、節(jié)能、環(huán)保、微型化。

　　The development trend of solid curing is high speed, energy saving, environmental protection and miniaturization.