Hand board making is to verify the feasibility of the product without opening the mold. Generally, the sample size of the hand board is small, the production cycle is short, the waste of human and material resources is less, and the speed of product design defect discovery and improvement is fast, which lays a solid foundation for product completion and mass production. So what can be divided into fast hand board making methods?

1.激光快速成型（SLA/SLS)

1. Laser rapid prototyping (SLA / SLS)

激光快速成型由原材料的不同分為SLA和SLS兩種。

Laser rapid prototyping can be divided into SLA and SLS according to different raw materials.

SLA是利用3D雕刻原理的工藝，也稱為樹脂的選擇性固化，是Z早的快速成型技術(shù)。過程如下：當(dāng)樹脂槽充滿波浪狀樹脂時，它會在紫外激光束的照射下迅速固化。在成型過程開始時，可升降工作臺處于波前下一個橫截面層的高度。聚焦的激光束在計(jì)算機(jī)控制下，按照以下要求沿液面掃描：用于在掃描區(qū)域創(chuàng)建樹脂的橫截面輪廓 固化以獲得具有橫截面輪廓的樹脂片。然后工作臺降低薄膜層的高度，固化后的樹脂薄膜上覆蓋一層新的液態(tài)樹脂，用于二層激光掃描固化，新固化的層就是之前牢固粘附的A層層。重復(fù)此操作，直到形成整個產(chǎn)品。Z后，完成清潔、支撐、二次固化和表面處理。

SLA is a process based on the principle of 3D engraving, also known as selective curing of resin. It is Z's earliest rapid prototyping technology. The process is as follows: when the resin tank is filled with wavy resin, it will solidify rapidly under the irradiation of ultraviolet laser beam. At the beginning of the forming process, the lifting table is at the height of the next cross-sectional layer of the wave front. The focused laser beam is scanned along the liquid surface under the control of the computer according to the following requirements: it is used to create the cross-sectional profile of the resin in the scanning area and cure to obtain the resin sheet with cross-sectional profile. Then the workbench reduces the height of the film layer, and the cured resin film is covered with a layer of new liquid resin for two-layer laser scanning curing. The newly cured layer is the layer a firmly adhered before. Repeat this operation until the whole product is formed. After Z, complete cleaning, support, secondary curing and surface treatment.

樹脂選擇性固化快速成型技術(shù)適用于中小型工件的生產(chǎn)，可直接獲得樹脂或類似工程塑料制品。SLA快速成型具有優(yōu)異的表面質(zhì)量、高系統(tǒng)分辨率和高成型精度。

Resin selective curing rapid prototyping technology is suitable for the production of small and medium-sized workpieces, and can directly obtain resin or similar engineering plastic products. SLA rapid prototyping has excellent surface quality, high system resolution and high molding accuracy.

手板制作

Hand board making

SLS的加工方法與SLA技術(shù)類似，只是用粉體原料代替波態(tài)聚合物，對粉體材料施加恒定的掃描速度和能。在成型過程中，激光參數(shù)、粉末特性、燒結(jié)氣氛是影響燒結(jié)質(zhì)量的重要因素。SLS 快速成型可以創(chuàng)建Z困難的手板，并且可以使用多種原材料，例如大多數(shù)工程塑料、蠟、金屬和陶瓷。零件的構(gòu)建速度快，無需對零件進(jìn)行后期校正。沒有設(shè)計(jì)和施工支持。

The processing method of SLS is similar to SLA technology, except that powder raw materials are used instead of wave polymers to apply constant scanning speed and energy to powder materials. In the forming process, laser parameters, powder characteristics and sintering atmosphere are important factors affecting the sintering quality. SLS rapid prototyping can create difficult hand boards, and can use a variety of raw materials, such as most engineering plastics, wax, metal and ceramics. The construction speed of parts is fast, and there is no need for post correction of parts. No design and construction support.

2、CNC快速成型

2. CNC rapid prototyping

CNC在機(jī)械加工行業(yè)應(yīng)用廣泛，技術(shù)相對成熟。在手板的加工中，效果和精度都非常好，所以我們要考慮如何加工手板。

CNC is widely used in the machining industry, and the technology is relatively mature. In the processing of the hand board, the effect and accuracy are very good, so we must first consider how to process the hand board.

對于塑料加工材料，ABS 灰白色/黑色/透明；PMMA 亞克力（無色透明/有色透明/珍珠光澤/壓花） 電木（不透明深色、棕色/黑色） PC、PA 尼龍、PA + 玻璃纖維鋼（ POM) 包括) 白色/黑色 PP 乳白色；金屬材料包括鋁合金、銅（紫紅色光澤）、不銹鋼、鈦??合金、鎂合金、鋅合金。

For plastic processing materials, ABS gray white / Black / transparent; PMMA acrylic (colorless transparent / colored transparent / pearl luster / embossed) bakelite (opaque dark, Brown / Black) PC, PA nylon, PA + glass fiber reinforced plastic (POM) white / Black PP milky white; Metal materials include aluminum alloy, copper (purplish red luster), stainless steel, titanium?? Alloy, magnesium alloy, zinc alloy.

CNC手板機(jī)的表面處理方法多種多樣，包括打磨、噴灰、噴漆、拋光、絲網(wǎng)印刷、電鍍、氧化、激光雕刻、釀造和UV，其效果甚可以同模具出產(chǎn)出來的產(chǎn)品比美。在外觀，裝配，功能驗(yàn)證上，都可以達(dá)到客戶規(guī)劃驗(yàn)證目的，CNC能做出一個能實(shí)在反映您規(guī)劃目的工件。

The surface treatment methods of CNC hand board machine are various, including grinding, ash spraying, painting, polishing, screen printing, electroplating, oxidation, laser engraving, brewing and UV. Its effect can even be compared with the products produced by the mold. In terms of appearance, assembly and function verification, it can achieve the purpose of customer planning and verification. CNC can make a workpiece that can truly reflect your planning purpose.

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