laser cutting-Jiangsu Songshi metal products Co., Ltd. _Logistics storage shelf_Metal products processing

laser cutting

Our company has production equipment such as: two large laser cutting machines, CNC punching machine, CNC bending machine, CNC shearing machine, pneumatic fast punching machine, argon arc welding, gas shielded welding, robot welding machine, spraying assembly line (running length 400 meters ) and other production equipment.

key word:

Metal product

key word:

钣金加工 | 物流仓储货架 | 五金加工冲压件类 | 零售货架

Classification:

Sheet metal processing

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Product Details

Sheet metal processing is mainly to complete the production of products by cutting, forming, correcting and assembling various metal materials. Therefore, you must have certain knowledge about the quantities, properties and uses of common metal materials in order to use these materials reasonably and master the correct sheet metal processing techniques.

Sheet metal processing and cutting

The cutting method is to use a disc shearing blade to cut the sheet in the opposite rolling direction. According to the disc equipment, it can be divided into linear equipment, oblique linear equipment and oblique equipment. Straight equipment is suitable for cutting sheet metal into strips or cutting square blanks into circular blanks in sheet metal processing. The oblique straight equipment is suitable for cutting circular blanks or circular inner holes, and the oblique equipment is suitable for cutting arbitrary curves. blank.

1. Straight equipment to cut paper. When using the straight line equipment to cut the plate, please align the straight line center line of the upper and lower hob first, the gap between the upper and lower cutting blades is usually 0.05-0.5mm, or adjust the upper and lower hob a little. Sheet metal processing The stacking conditions make the stacking height h generally only 0.2-0.3 times the thickness of the shear plate.

2. Sheet metal processing cutting board with tilting equipment. Beveling equipment is widely used for cutting curved boards. Before cutting the paper, the upper and lower reels are tilted devices, and the angle between the upper and lower reels is set to 25 degrees. Then adjust the speed and gap of the egg cutter according to the thickness of the slices.

3. The cutting dimensional accuracy of beveled sheet metal processing equipment. When a generalized disc rolling and shearing curve is chosen, the radius of curvature of the blank has a certain limit, and its small radius of curvature is related to the diameter of the cutting blade and the thickness of the half-body material, and when in the disc rolling For straight bars, the small width error is also limited.

激光切割可分为四类：化学切割，激光熔化切割，激光氧气切割，激光划片和受控断裂。化学切割是使用高能量密度的激光束加热工件，从而温度迅速升高，在很短的时间内达到材料的沸点，并且材料开始汽化并形成蒸汽。

蒸汽喷射的速度非常快，同时蒸汽喷射出去，在材料上形成切口。材料的汽化热通常非常大，因此化学切割需要大量的功率和功率密度。化学切割主要用于切割极薄的金属材料和非金属材料。

在激光切割中，金属材料通过激光加热而熔化，然后通过与光束同轴的喷嘴喷射非氧化性气体，液态金属在气体的强压力下被排出以形成切口。激光熔化切割不需要完全蒸发金属，所需能量仅为蒸发切割的1/10。它主要用于切割某些非氧化性材料或活性金属，例如不锈钢，钛，铝及其合金。

激光切割的原理类似于氧乙炔切割。它使用激光作为预热热源，并使用氧气和其他活性气体作为切割气体。一方面，吹入的气体与切削金属反应，引起氧化反应，释放出大量的氧化热。另一方面，熔融的氧化物和熔体被吹出反应区以在金属上形成切口。

由于激光切割过程中的氧化反应会产生大量热量，因此激光氧气切割所需的能量仅为熔融切割的1/2，并且切割速度比化学切割和熔融切割快得多。激光氧气切割主要用于易氧化的金属材料，例如碳钢，钛钢和热处理钢。

激光切割划片使用高能量密度激光扫描脆性材料的表面，从而加热材料以蒸发小沟槽，然后施加一定的压力，脆性材料将沿着小沟槽破裂。用于激光切割的激光器通常是调Q激光器和CO 2激光器。