One of the primary features of Aluminium Composite Panels is that they can be routed through conventional routing machines to internationally designed vertical panels saws -including hand panel routers with various kinds of routing blades. During routing, the floor/base should be flat & free from foreign particles (use vacuum cleaner) to avoid denting or bending of sheets. In normal conditions, during routing, the routed sheet plastic thickness should not be more than the ½ of one side aluminium skin thickness. The thickness of remaining PE/FR core should be uniform throughout the sheet to attain smooth finish folding or bending. The blade or tip of routing machine should be appropriate & in good condition for smooth grooving. The distance of groove from edge is min 25 mm. After routing cut the corner of sheet with sharp blade or wood chisel wider than corner to find very smooth corner joints. Fold the sheets gently with equal pressure to avoid deflection of panel, hump generation & achieving the smooth panel finish. It is suggested to route the sheet from bottom side only to avoid long term properties problem on coated surfaces. Generally reverse bending of routed area is not allowed.
Equipments used for Routing & Folding
For processing a small number of panels a manual router with a v-groove blade can be used. For processing large number a table circular saw or CNC router is needed.
1. Manual Router with “v” groove circular blade
The manual router consist of circular grooving blades that are commonly available on the market and are used for manual processing. If they are equipped with special routing bits (carbide tipped cutter) the hand operated router can be used for a limited number of processes. In this case the stability of the tool and the guide-system considerably affect the quality of the routing, the setting of the manual router is very important, it is highly dependent on operator skills. The router rpm should be 2400 to 5000.
2. Vertical Grooving Manual
These type routers are consist of a moving arm with a circular blade/bit. Fix the sheet on vertical supported plate, set the grooving depth by setting the wheel. The plate should be flat and free from dents to find uniform routing.
3. Automatic CNC Router (Horizontal Grooving)
This machine consists of a computer along with programming and automatic robotic arm. Set the depth & design of routing, and then select appropriate bit for routing angle.
After setting above process, fix the sheet on table with clamp & execute run command.