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LAMECO Standard

Reference: LS 5256, Laminated Shims Materials

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Laminated shim, Peel shim, Peelable shim or Peel-off shim

The paragraphs numbered from 1.1 to 1.6 concern material specifications.
In whole chapter 2, physical and mechanical properties are indicated for each of them.
At the end of the chapter 2, you will find an example of a formulation for drawing up demands, plans or any other technical document that may be required.
Description Physical & Mechanical Characteristics Industrial Sectors

Documentation to Download - US Letter Size Letter - Inch   Documentation to Download - A4 Size A4 - Metric

1.1 Shim materials
LS1: Aluminum 1200 H19
LS2: Aluminum 5052 H19 / H39
LS18: Aluminum 1050 H18
LS19: Aluminum 1100 H19
LS3: Brass CuZn37, CZ108, C27200, C27700
LS4: Stainless steel AISI 302
LS5: Stainless steel AISI 304
LS6: Stainless steel AISI 304L
LS7: Stainless steel AISI 316
LS8: Stainless steel AISI 316L
LS9: Carbon steel 1010
LS10: Titanium 2TA1
LS11: Titanium TA2
LS12: Single colour polymer
LS13*: Two-colour polymer
LS15*: Carbon fabric
LS16: PLUS glass fabric
LS17: BCRW fabric
LS20: Polyimide
* LS14 has been superseded.

For the whole range of CURVPEEL®, INSTANT-PEEL® or SILENTLINE® products, put "CP", “IP” or "S" in front of the material required (for examples: IPLS7 for AISI 316 stainless steel in INSTANT-PEEL® or SLS9 for AISI 1010 steel in SILENTLINE®).

Note: Other materials can also be made. Replies by return of e-mail.

1.2 Type
A: Fully laminated
B: Half-laminated (See Type B shim materials in 1.6)
C: Metallic bilaminate: please provide us with desired thicknesses of laminations and total thickness of peelable parts

1.3 Thickness of Laminated Sheets
1: .0002'' / 0,005 mm (prototype LS17 under test)
2: .0004'' / 0,01 mm
3: .0005'' / 0,012 mm
4: .0007'' / 0,019 mm
5: .0009'' / 0,023 mm
6: .001'' / 0,025 mm
7: .002'' / 0,05 mm
8: .003'' / 0,075 mm
9: .004'' / 0,1 mm
10: .0043'' / 0,11 mm
11: .008'' / 0,2 mm

1.4 Total thickness
X = Total thickness

1.5 Thickness of Laminated sheets / materials
LS1, LS2, LS7: 7, 8
LS4, LS6, LS8, LS11, LS16: 7, 8, 9
LS3, LS9, LS10: 6, 7, 8, 9
LS5: 2, 6, 7, 8, 9
LS12: 3, 4, 5, 7, 8, 9 & 11
LS13: 3, 4, 5, 7
LS15: 10
LS16: 8 & 9
LS17: 1
LS18: 7, 9, 11
LS19: 7, 8
LS20: 8

1.6 Materials (Type B: Solid Part)
1: Aluminium A5
2: Aluminium 2024T3
3: Stainless steel 304L
4: Carbon steel DC01
5: Titanium AB-1
6: Cotton / phenolic resin fabric

Note: the thickness of the solid part - when a solid part is required - is always half of total thickness.


2.1 Densities
LS1, LS2 & LS18: 2.8
LS3: 8.5
LS4 to LS8: 8.2
LS9: 7.8
LS10 & LS11: 4.5
LS12 & LS13: 1.395
LS15: 1.05 (10)
LS16: 1.37 (8) & 1.39 (9)
LS17: 1
LS19: 2.71
LS20: 1.42

2.2 Comprensive fracture strength limits
LS1 to LS11 & LS18: 1 900 MPa (physical limit of the test machine: no fracture)
LS12 & LS13: 600 MPa
LS15: 1 570 MPa
LS16: 1 900 MPa (physical limit of the test machine: no fracture)
LS17: 1 900 MPa (physical limit of the test machine: no fracture)

Test results supplied on request.

2.3 Permanent residual deformations
This data is communicated on request by return of e-mail.

2.4 Resin temperature resistance (*)
LS1 to LS11 & LS18: 200°C / 392°F
LS12 and LS13: 130°C / 266°F
LS15: 300°C / 572°F
LS16: 370°C / 698°F

(*) Due to the extremely small quantities of the binding agent used, its destruction above the listed temperature does not affect the shim's operational performance.

2.5 Materials’ maximum temperature resistance as per 1.1 above
This data is communicated on request by return of e-mail.

2.6 Minimum (negative) temperature resistance
This data is communicated on request by return of e-mail.

2.7 Peeling strength
This data is communicated on request by return of e-mail.

2.8 Behaviour Under Immersion
This data is communicated on request by return of e-mail.

 

Example of Formulation:

A/ Without the standard: “Stainless steel AISI 304, total thickness .08", solid part .04" + .04" peelable in 0.004"” or “Stainless steel, total thickness 2mm, solid part 1mm + 1mm peelable in 0,1mm”

B/ With the standard: “LS5, B3, 9, X2”

3. Industrial sectors (non-exhaustive list)

  • Defense
  • Space: launchers, satellites
  • Formula 1
  • Medical engineering
  • Textile engineering
  • Production machines and machining units
  • Specialized machines
  • Aeronautical equipment: landing gear, aircraft manufacturers, helicopter manufacturers, aircraft engine manufacturers, nacelles, structures
  • Scientific and research equipment
  • Cryogenic systems...