Laser cutting激光切割

发布时间:2018-06-28 14:45:16   来源:文档文库   
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About cutting process

Cutting is a manufacturing process used to separate materials. Laser cutting is often used in industrial manufacturing areas for cutting sheet metal and piping. It uses a computer controlled high output laser to do the cutting. Plasma cutting uses a torch which blows an inert gas at high speed through a nozzle which when held close enough to the parts creates an arc and melts the material. Water jet cutting uses extremely high pressure and velocity water to cut into metals. A torch is used in oxyfuel cutting to heat the metal; oxygen is then blown into the part causing the metal that it combines itself with to leave the cut as slag. Electric discharge (EDM) is also known as spark machining or spark eroding. EDM removes material by rapid arc discharges between the electrode of the cutter and the work-piece which has to be a conductor.

切割是一种将材料分离的技术。激光切割在工业制造领域里面是做钣金切割和管材成型的,他是用电脑控制输出强力的激光来切割。 等离子切割就是是利用高温等离子电弧的热量使工件切口处的金属局部熔化(和蒸发),并借高速等离子的动量排除熔融金属以形成切口的一种加工方法。水切割是借助超高压力和速度的水柱来切割金属。 氧气切割是利用气体火焰的热能将工件切割处预热到燃点后,喷出高速切割氧流,使金属燃烧并放出热量而实现切割的方法 电火花切割是我们所知道的,利用电极铜公和工件(同时也是导电体)之间的快速电弧来排除材料来实现切割。

Today we are talking Laser cutting which is one of many laser processes that have noticed a much more widespread use over recent years. Many of the laser processes have similar benefits and applications, and as one laser machine can perform multiple processes, it can be hard knowing exactly which one could be right for your business.

What is laser cutting?

Laser cutting, as the name may suggest, is the process of cutting a material using a laser beam. This can be done to either trim down a material or to help cut it into complex shapes that more conventional drills would struggle with.

This laser process also has many similarities to the laser drilling and laser engraving processes. The former involves the creation of thru-holes in a material or dents, like an engraving used in the later process. These dents and holes are essentially cuts, and you’ll often see a laser cutting machine being used for laser drilling and laser engraving too.

A vast range of materials and thickness sizes can be cut using laser cutting, making it a handy and adaptable process.

激光切割,顾名思义,就是用激光束来切割材料的工艺流程。这种工艺可以用来剪切材料或者帮助切割一些传统工艺很难做到的复杂形状。 这个激光工艺跟激光钻和激光雕刻有很多相似之处。前者牵涉到在材料上做一个通孔或凹痕/花边装饰,就像后续工艺里面用到的雕刻。这些孔和花边本质上其实是切割出来的,所以我们经常见到激光切割机器用来做激光钻和镭雕。

激光切割可以应用到非常广泛的材料和厚度尺寸,是一个非常便利和适应性强的工艺

How it works

The laser cutting process works by having a focused and precise laser beam run through the material, delivering an accurate and smooth finish. Initially, the laser is used to pierce the material with a hole at the edge, and then the beam is continued along from there.

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The laser being used essentially melts the material away that it is run over, so is more like melting than cutting. This means that it can easily cut light materials such as cloth up to tougher metals and gemstones such as diamonds.

What’s the advantages of laser cutting compare to CNC machining?

Laser cutting has low maintenance costs and only needs inexpensive replacement parts

The laser cutting process helps to dramatically reduce material wastage

One laser cutting setup is capable of working with multiple materials.

It is much safer using laser cutting than other processes as the beam is enclosed within a light box

Due to it’s low cost and high efficiency, laser cutting is a widely used for rapid prototyping and low volume manufacturing, or even large quantity production. If you have some sheet metal parts to need do, welcome to contact Danke Mold!

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