In the design of sheet metal chassis shell, in addition to giving full play to its characteristics and advantages, we should also avoid the adverse impact of sheet metal processing technology on its shape. We should pay attention to the following matters.

鈑金機(jī)箱是指利用特殊的鈑金材料制作而成的機(jī)箱，多應(yīng)用于汽車工業(yè)、通信、醫(yī)療器械、電子電器等領(lǐng)域。鈑金具有重量輕、強(qiáng)度高、導(dǎo)電、成本較低、易于批量生產(chǎn)等特點(diǎn)，但其獨(dú)特成型工藝對(duì)造型的限制也比較大。

Sheet metal chassis refers to the chassis made of special sheet metal materials, which is mostly used in the automotive industry, communications, medical devices, electronic appliances and other fields. Sheet metal has the characteristics of light weight, high strength, conductivity, low cost and easy mass production, but its unique molding process also has great restrictions on modeling.

1、鈑金機(jī)箱外殼設(shè)計(jì)的展開方式一定要相當(dāng)合理，要注意節(jié)省材料以及其加工性。

1. The unfolding method of the shell design of the sheet metal chassis must be quite reasonable, and attention should be paid to saving materials and its processability.

2、選擇間隙及包邊方式應(yīng)該謹(jǐn)慎合理，T=2.0以下，間隙為0.2;T=2-3之間，間隙為0.5；包邊方式應(yīng)該采用長(zhǎng)邊包短邊的方式(即門板類)。

2. The selection of gap and edging method should be cautious and reasonable. If t=2.0 or less, the gap is 0.2; Between t=2-3, the gap is 0.5; The way of wrapping edges should be the way of wrapping long edges around short edges (i.e. door panels).

3、公差外形尺寸：負(fù)責(zé)走到底，正差走一半；孔形尺寸：走差走到底，負(fù)差走一半。

3. Tolerance overall dimension: it is responsible for going to the end, and half of the positive difference; Hole size: the deviation goes to the end, and the negative difference goes half.

4、毛刺方向。

4. Burr direction.

5、撕裂、壓鉚、抽牙、沖凸點(diǎn)(包)等位置方向，畫出剖視圖。

5. Tear, press riveting, tooth extraction, punch bump (bag) and other positions and directions, and draw the sectional view.

6、核對(duì)其材質(zhì)，板的厚度，以及板厚的公差。

6. Check the material, thickness and tolerance of plate thickness.

7、注意特殊的角度，折彎角內(nèi)半徑(一般R=0/5)要試折而定將其進(jìn)行展開。

7. Pay attention to the special angle. The inner radius of the bending angle (generally r=0/5) should be expanded according to the trial bending.

8、有易出錯(cuò)(比如相似不對(duì)稱的地方)的地方應(yīng)該提出。

8. Places that are prone to errors (such as similar asymmetries) should be highlighted.

9、尺寸較多的地方要加上放大之后的圖片。

9. Enlarged pictures should be added where there are many sizes.

10、需要進(jìn)行噴涂保護(hù)的地方應(yīng)該表示出來(lái)。

10. Areas requiring spray protection should be indicated.

山東快速成型廠家提醒您，因鈑金的獨(dú)特成型工藝導(dǎo)致其不宜有復(fù)雜的造型，所以在鈑金機(jī)箱外殼設(shè)計(jì)上既要突破傳統(tǒng)的方框造型，又要便于制造加工，不宜多做豐碩的曲面變化，比較適合多做表面工藝的處理，降低出產(chǎn)制造的難度，確保設(shè)計(jì)方案可行性的同時(shí)，使設(shè)備造型簡(jiǎn)潔美觀，符合人們審美。

Shandong rapid prototyping manufacturers remind you that due to the unique forming process of sheet metal, it is not suitable to have complex shapes. Therefore, in the design of sheet metal chassis shell, it is not only necessary to break through the traditional box shape, but also convenient for manufacturing and processing. It is not suitable to do more rich surface changes. It is more suitable to do more surface processing, reduce the difficulty of production and manufacturing, ensure the feasibility of the design scheme, and make the equipment shape simple and beautiful, in line with people's aesthetics.

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