Se utilizan distintas carcasas para proteger los componentes electrónicos, como por ejemplo el sistema de batería o la electrónica de potencia, frente a influencias ambientales externas y para la fijación de componentes en el interior, a fin de garantizar su funcionamiento óptimo durante el accionamiento del vehículo. Los requisitos de la carcasa dependen del sistema electrónico y del concepto de propulsión. Actualmente, se utilizan diferentes materiales y procesos de fabricación.
CARACTERÍSTICAS
Componentes inestables de paredes finas (propensos a vibraciones)
Estructura de cubeta fundida o de bastidor con perfil hueco
Parcialmente en aluminio con bajo contenido de silicio
Grandes dimensiones (2 x 3 m)
Principalmente operaciones de taladrado y fresado, y roscas
Requisitos de precisión y superficie para pasacables y conexiones de refrigeración
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 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
1 / 9
Standard programme for the machining of aluminium structural parts
Highly positive cutting edge geometry
Reduced cutting forces
Low vibration cut
2 / 9
OptiMill-SPM-Rough
Low vibration roughing with deep cutting depth
3 / 9
OptiMill-SPM
Ideal for making openings or pockets
Solid carbide design or with brazed PCD cutting edges
4 / 9
OptiMill-SPM-Finish
Finishing of great depths in one go
Strong performance with high wraps
5 / 9
Tritan-Drill-Alu
Creation of core holes
Three cutting edges for the highest feed rates
Highest positioning accuracy through self-centring cross cutting edge
6 / 9
MEGA-Drill-Alu
Solid carbide drill
Drilling with lower cycle time
Focus on chip formation
Effective drilling processes with a larger number of equal diameters
7 / 9
FaceMill-Diamond-ES
PCD face milling cutter
Roughing and finishing of face surface
Machining face surfaces with different stock removal using a single tool
Roughing and finishing operations possible
8 / 9
OptiMill-Diamond-SPM
PCD milling cutter
Circular milling operations of various diameters and surfaces
Less tool changes thanks to flexible tool deployment
9 / 9
OptiMill-Alu-HPC-Pocket
Corner milling cutter
Pocket milling of aluminium materials
Optimum chip removal
Optimum stability
1 / 5
Fresa PCD para requisitos de mecanizado especiales
2 / 5
Fresa PCD con cuchillas dispuestas de forma alterna
Bajas fuerzas de corte en toda la profundidad de mecanizado
3 / 5
Fresa PCD con forma espiral
Acabado de estructuras de paredes finas
4 / 5
Fresas helicoidales de PCD
Recorte con gran profundidad de corte
5 / 5
Fresa plana de PCD
Fresado plano con profundidades de corte de hasta 10 mm
Creación de perfiles superficiales definidos para superficies de contacto y apoyo