Dry PCB Drilling Aluminium Sheet
Alloy: 1100 H18
Thickness: 0.15 ±0.01mm
Density: 2.71 / kgm3
Elongation: ≥2.0%
Diagonal: ≤0.1%
Dimension tolerance: ±2mm
Tensile strength: 110~136 MPa
Thermal conductivity: 222 W/(m* K)
Standard size: 37 "*49",41 "*49",43 "*49"
Dry pcb drilling aluminium sheet is used as the upper cover in the drilling process of circuit board factories. Its main functions and functions are: to prevent the burr and scratch on the upper surface of PCB board and to improve the drilling quality; Heat dissipation and cleaning effect on drill bit, prolong the service life of drill bit; Lead the bit into the PCB board track to improve the accuracy of the hole location. Therefore, the requirements of the drilled aluminum sheet: it needs to have a certain surface hardness to prevent the burr on the surface of the PCB board, but it can not be too hard and wear the bit;
Dry pcb drilling aluminium sheet requires high thermal conductivity, which can quickly take away the heat generated by the drill bit and reduce the temperature of the drill bit. That is to have a certain degree of elasticity and flexibility, so that the moment of the drill contact immediately deformation, accurate alignment of the drilling position, to ensure the accuracy of the hole position, but also to have a certain degree of rigidity to prevent the plate vibration when drilling.
