Expanded Metal foils for lightning strike protection

 

  

  

  

The use of lighter materials in the aircraft industry has reached a new level. Pre-impregnated carbon fabrics are lighter and much stronger than previous aluminum fabrics. Despite the great advantages of carbon fabrics, there is the most important disadvantage: the aircraft must have full lightning protection. This protection is provided by metal AeroMesh meshes made of aluminum and copper. Grids are laid between laminated carbon plates.

AeroMesh meshes don’t wear out due to friction and do not unravel during cutting (regardless of the shape and direction of cutting). The two most used lightning protection materials are copper and aluminum due to their physical and electrical properties. Due to their low density and high conductivity, the most effective protection occurs.

 

  • Advantages:

  • excellent conductivity for lightning protection;
  • a light weight;
  • high flexibility;
  • available in various thicknesses and sizes;
  • can be manufactured according to the technical requirements of specific consumers.

Specifications of copper mesh

 

CU73

CU107

CU142

CU195

CU815

Width: +/- .4 %

mm

930

930

930

930

630

Weight: +/- 7,7 %

g/m²

73

107 +/-

142

195 +/-

815 +/- 4,3 %

Short Cell Side (SCS): +/- 6 %

mm

1,23

1,4

1,4

1,4

1,55

Long Cell Side (LCS): +/- 5 %

mm

2,54

2,54

2,54

2,54

3

Thickness: +/- 10%

mm

0,102

0,127

0,152

0,152

0,508

% of open area: +/- 8%

 

80

76

79

65

50

Resistance

SCS

≤3

 

 

 

 

LCS

≤12.3

 

 

 

 

 

 

Specifications of copper mesh

 

CU73F

CU107F

CU142F

CU195F

CU815F

Width: +/- .4 %

mm

930

930

930

930

630

Weight: +/- 7,7 %

g/m²

73

107

142

195

815

Short Cell Side (SCS): +/- 6 %

mm

1,23

1,4

1,45

1,4

1,55

Long Cell Side (LCS): +/- 6 %

mm

2,54

2,54

2,54

2,54

3

Thickness: +/- 10%

mm

0,051

0,051

0,076

0,076

0,254

% of open area: +/- 10%

 

80

76

79

65

50

Resistance

SCS

≤ 3,12

≤ 2,1

≤ 1,6

≤ 1,21

≤ 0,6

LCS

≤ 12

≤ 6,3

≤ 4,8

≤ 3,3

≤ 1,8

 

 

Specifications of aluminum meshes

 

AL66

AL137

Width: +/- .4 %

mm

930

930

Weight: +/- 10 %

g/m²

66

137

Short Cell Side (SCS): +/- 6 %

mm

0,9

1

Long Cell Side (LCS): +/- 5 %

mm

2

2

Thickness: +/- 10%

mm

0,051

0,15

% of open area: +/- 5%

 

70

60

Resistance

SCS

 

 

ДСЯ

 

 

 

 

Specifications of Aluminum Flat Mesh

 

AL66

AL78

Width: +/- .4 %

mm

930

930

Weight: +/- 10 %

g/m²

66

78

Short Cell Side (SCS): +/- 6 %

mm

0,9

1

Long Cell Side (LCS): +/- 5 %

mm

2

2

Thickness: +/- 10%

mm

0,051

0,102

% of open area:  +/- 5%

 

50

68

Resistance

SCS

 

 

LCS

 

 

 

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