PCB Aluminum Drilling Entry Sheet

  • Alloy:1100 3003 8011
  • Temper:H18
  • MOQ:3Tons
  • Package:Pallet or Wooden Box
  • Port:Qingdao Tianjin
  • Application:PCB, Aluminum Entry Sheet

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 PCB Aluminum Drilling Entry Sheet:
Aluminium drill entry sheet is manufactured for use with double-sided and multilayer circuit boards to meet both the performance and cost requirements for general PCB drilling.
Advantages of Aluminum Drilling Entry:
1. Excellent heat dissipation of aluminium drill entry sheet cools the drill bit to reduce the risk of resin build-up in the flutes.
2.  Defined surface roughness combined with excellent flatness is designed to benefit drill centring, reduce drill wander and avoid drill breakage.
3.  Excellent burr reduction due to high surface hardness and material stiffness
4.  Protects the circuit board against scratches and pressure foot marks
5. Thickness options available for different applications
6. Solid aluminium drill entry can be totally recycled.
Technical Data of Aluminum Drilling Entry:
♦Temper: H 18 extra hard
♦Elongation: > 3 %
♦Surface roughness: approx. 3.5 µm
♦Thickness tolerance: + 0.01 /- 0.02 mm

Mechanical Properties:

Alloy (AA)
Temper
UTS (mpa)
%E(min)
(50mm gauge length)
Min
Max
3105
H18
190
-
1
8011
H18
175
-
1
1050
H18
125
-
1

No oil stain on sheet surface

 

Dimensions:

Parameter
Range
Tolerance
Thickness (mm)
0.15 - 0.28
+/-0.01
Width (mm)
1250 max
+/-1
Length (mm)
2000 max
+/-1
Diagonal difference (mm)
-
2
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