常州亿创钣金加工厂专业从事精密钣金加工、激光切割加工为主的钣金加工型厂家

常州亿创钣金加工厂

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客户如何选择适合自己的钣金加工方式

2018-05-09 09:30:08 常州亿创钣金加工厂 阅读

钣金加工技术广泛应用于金属和非金属材料的加工中,可大大减少加工时间,降低加工成本,提高工件质量。现代的激光成了人们所幻想追求的“削铁如泥”的“宝剑”。 以天翔激光CO2钣金加工机为例,整个系统由控制系统、运动系统、光学系统、水冷系统、排烟和吹气保护系统等组成,采用最先进的数控模式实现多轴联动及激光不受速度影响的等能量切割,同时支持DXP、PLT、CNC等图形格式并强化界面图形绘制处理能力;采用性能优越的进口伺服电机和传动导向结构实现在高速状态下良好的运动精度。

Sheet metal processing technology is widely used in metal and non-metallic materials processing, which can greatly reduce processing time, reduce processing costs and improve the quality of workpieces. The modern laser has become the "sword" that people are imaginary to pursue. Taking Tianxiang laser CO2 sheet metal machining machine as an example, the whole system is composed of control system, motion system, optical system, water cooling system, smoke exhausting and blowing protection system. It adopts the most advanced numerical control mode to realize the equal energy cutting with multi axis linkage and laser without the influence of speed. It supports DXP, PLT, CNC and other graphic formats at the same time. The interface graphics processing ability is enhanced, and the imported servo motor and transmission guide structure with superior performance are used to achieve good motion accuracy under high speed condition.

主要工艺有以下几种:

The main processes are as follows:

1、汽化切割。

在高功率密度激光束的加热下,材料表面温度升至沸点温度的速度是如此之快,足以避免热传导造成的熔化,于是部分材料汽化成蒸汽消失,部分材料作为喷出物从切缝底部被辅助气体流吹走。一些不能熔化的材料,如木材、碳素材料和某些塑料就是通过这种汽化切割方法切割成形的。

汽化切割过程中,蒸汽随身带走熔化质点和冲刷碎屑,形成孔洞。汽化过程中,大约40%的材料化作蒸汽消失,而有60%的材料是以熔滴的形式被气流驱除的。

1, vaporization cutting.

Under the heating of high power density laser beam, the velocity of the surface temperature of the material to the boiling point is so fast that it is enough to avoid the melting caused by the heat conduction, so that some materials vaporize into steam, and some materials are blown away from the bottom of the cutting seam as the ejecta. Some materials that can not be melted, such as wood, carbon materials and some plastics, are cut through this vaporization cutting method.

In the process of vaporization and cutting, steam carries away melting particles and scouring debris to form holes. During the vaporization process, about 40% of the material was vaporized and 60% of the material was expelled by air in the form of droplets.

2、熔化切割。

当入射的激光束功率密度超过某一值后,光束照射点处材料内部开始蒸发,形成孔洞。一旦这种小孔形成,它将作为黑体吸收所有的入射光束能量。小孔被熔化金属壁所包围,然后,与光束同轴的辅助气流把孔洞周围的熔融材料带走。随着工件移动,小孔按切割方向同步横移形成一条切缝。激光束继续沿着这条缝的前沿照射,熔化材料持续或脉动地从缝内被吹走。

2. Melt and cut.

When the power density of the incident laser beam exceeds a certain value, the material inside the beam point begins to evaporate and form a hole. Once the pore is formed, it will absorb all incident beam energy as a blackbody. The small hole is surrounded by the molten metal wall, and then the auxiliary air stream coaxial with the beam takes away the molten material around the hole. As the workpiece moves, the hole moves along the direction of cutting to form a slit. The laser beam continues to illuminate along the front edge of the seam, and the molten material is blown continuously or pulsating from the seam.


标签:   钣金加工 激光切割加工