电源壳体

通常，我们在车辆内部使用了多种多样的保护壳体组件，用于对各种电子结构组件进行保护（例如：电池系统或电源电子设备），使其免受外部环境的影响，并且可以使得各被保护的组件牢牢地紧固在内部，以确保在车辆运行期间各种组件能够安全无故障的运行。对于外壳品质的要求，取决于电气控制系统和驱动方案。当前对其制造投入应用了很多不同的材料和制造工艺。

特征

• 不稳定、薄壁的结构组件（易受振动影响）
• 整体是浇注槽体或者由空心型材制成的框架结构
• 有些采用低硅含量的铝制成
• 大平面（2 x 3 m）
• 主要采用钻铣加工和螺纹加工
• 电缆密封套管和冷却连接接口的精度和表面要求

挤压型材

Extruded profile

Due to the increasing size of the battery, modular concepts for different performance classes and ranges are used. For this reason, extruded aluminium profiles are welded to form a housing.

MACHINING REQUIREMENTS

• Thin material with several layers
• Drilling: Vibrations and burr formation. Ring formation on the tool → Helix milling/orbital drilling prevents burrs and rings
• Milling: Thin material tends to vibrate → Fewer vibrations through optimised
  cutting edge geometry

Die-cast housing

Die-cast housing

Die-cast aluminium housings are mostly used to accommodate power electronics or smaller battery systems for hybrid vehicles. The complex housing structures are designed with integrated cooling channels.

MACHINING REQUIREMENTS

• Milling of sealing surfaces (in some cases specific surface requirements)
• Milling of mounting surfaces for electronics and battery cells with long tool overhang
• Drilling of core holes (> 50 holes per component)

Tool overview