激光切割增加常規(guī)鈑金加工工藝的變化

常規(guī)的鈑金加工工藝是采用：剪切－沖－折彎－焊接流程或者火焰等離子切割－折彎－焊接工藝。在多品種，小批量，定制化，高質(zhì)量，短交貨期的訂單面前，它顯現(xiàn)出明顯的不適應(yīng)。激光切割工藝作為“剪切－沖”的替代工藝出現(xiàn)，具有靈活、柔性高的特點。同時多數(shù)人也認(rèn)為其成本高。故常應(yīng)用在異形(或形狀復(fù)雜的)工件和樣品(單件或極小批量)制造上。但當(dāng)小批量制造越來越普及時，激光切割的需求也日益上升。

Conventional sheet metal fabrication processes include shear punching bending welding process or flame plasma cutting bending welding process. In the face of many varieties, small batch, customized, high quality, short delivery time orders, it shows obvious lack of adjustment. Laser cutting technology, as an alternative technology of shear and impact, has the characteristics of flexibility and flexibility. At the same time, most people also think its cost is high. It is often used in the manufacture of special-shaped (or complex) workpieces and samples (single or small batch). But when small batch manufacturing is becoming more and more popular, the demand for laser cutting is also increasing.

當(dāng)重新審視新的鈑金加工工藝：激光切割－折彎－焊接/鉚焊時，由于激光切割的高柔性、高精度，三維設(shè)計技術(shù)的成熟與普及，用戶可從新的設(shè)計、新的流程中獲益，從而達(dá)到降低成本、縮短工期的要求。因此新的鈑金工藝是從設(shè)計開始的：設(shè)計 激光切割 折彎 焊接/鉚焊。下面通過幾個事例來說明新工藝的特點。

When the new sheet metal processing technology is re examined: laser cutting, bending, welding / riveting welding, because of the high flexibility and precision of laser cutting and the maturity and popularization of the 3D design technology, users can benefit from the new design and new process, thus reducing the cost and shortening the requirements of the time limit. Therefore, the new sheet metal process starts with design: laser cutting, bending, welding, and riveting.  The following examples illustrate the characteristics of the new process.

1)傳統(tǒng)的工藝下，該工件由幾部分組成�，F(xiàn)在，一次切割 折彎就完成了。達(dá)到了減少工序，縮短工期，降低成本的目的

2)傳統(tǒng)的工藝下，為焊接配置專用夾具�，F(xiàn)在部件間使用類似木工榫的工藝，定位準(zhǔn)，省時，焊接夾具簡單，產(chǎn)品變形小。達(dá)到了縮短工期，降低成本，提高質(zhì)量的目的。

3)多重折彎工藝在國內(nèi)的箱體制造業(yè)已經(jīng)比較普及。好處是省掉了傳統(tǒng)的加強筋。它有其設(shè)計與工藝上獨特的地方。從而達(dá)到產(chǎn)品質(zhì)量高，制造成本低的目的。在實際工藝下，還需配合點焊。

4)利用激光的切縫細(xì)，精度高的特點，一次切割(帶微連接)，配合四次折彎，完成四個工件。突破了傳統(tǒng)工藝下的設(shè)計思想，達(dá)到了縮短工期，降低成本的目的。

5)由于使用了榫結(jié)構(gòu)，工件折彎后配合點焊工藝，就可完成整個流程。工件變形小，噴涂前無需整形，打磨。

1) under traditional technology, the workpiece consists of several parts. Now, a cutting and bending is done. The purpose of reducing process, shortening construction period and reducing cost is achieved.

2) under traditional technology, special fixture is set up for welding. Now, similar to woodworking tenon technology is used in parts, positioning accuracy, time saving, welding fixture is simple, product deformation is small. The purpose of shortening the construction period, reducing the cost and improving the quality is achieved.

3) multiple bending technology has been popularized in the domestic box manufacturing industry. The advantage is to save the traditional reinforcement. It has its unique design and process. The aim is to achieve high product quality and low manufacturing cost. In the actual process, it is necessary to cooperate with spot welding.

4) make use of the characteristics of laser slit and high accuracy, one cut (with micro connection) and four bending to finish four workpiece. It breaks through the design thought under the traditional technology, and achieves the purpose of shortening the construction period and reducing the cost.

5) since the tenon structure is used, the whole process can be completed after the workpiece is bent and matched with the spot welding process. The workpiece has small deformation and no need for shaping and polishing before spraying.

由于新工藝流程的特點，先進(jìn)的鈑金設(shè)備軟件支持與設(shè)計，激光切割工藝，折彎工藝。其支持二維零件設(shè)計，管材類零件設(shè)計，折彎工件設(shè)計(僅支持百超的折彎機)，三維圖形展開。并通過標(biāo)準(zhǔn)計算機網(wǎng)絡(luò)將數(shù)控程序傳輸?shù)街付ǖ臋C器上。

Due to the characteristics of the new process, advanced sheet metal equipment software support and design, laser cutting technology, bending technology. It supports two dimensional parts design, pipe parts design, bending workpiece design (only supporting 100 hundred bending machine), three-dimensional graphics development. The NC program is transmitted to the designated machine through the standard computer network.

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