Aluminium Plates UNIDAL

Unidal

Unidal® are precision plates which offer a unique combination of outstanding dimensional stability and high mechanical strength. The very low internal stress drastically reduces the risk of deformation during machining, thereby reducing the need for extra operations like rough-milling, finishing or rework. High mechanical strength also means no need for thread inserts for screwed elements, thereby further reducing the machining time. Applications include reference plates, transport tables, jigs, robot arms.

PROCESSING METHODS

Weldability

  • TIG / MIG: excellent
    Filler alloy AA5183 AA5356
  • Resistance: excellent

Anodizing

  • Technical: excellent
  • Decorative: excellent
  • Ematalising: excellent

Machinability: very good

UnidaL® precision plates are available in temper T651 (quenched stretched artificially aged) in the following dimensions : Thickness Dimensions 6.0–110 mm 1520 x 3020 mm / 110 - 120 mm 1270 x 2520 mm (other dimensions on request)

CHEMICAL COMPOSITION (weight-%)

Si Fe Cu Mn Mg Cr Zn Ti+Zr
max.
0.35
max.
0.45
max.
0.20
0.15
0.50
1.5
2.5
max.
0.20
3.5
4.50
0.10
0.40

PHYSICALPROPERTIES (nominal values)

  • Density 2.75 g/cm3
  • Elastic Modulus 71000 MPa
  • Lin. thermal expansion coefficient (20 ° -100 ° C) 23,6 10-6 K-1
  • Thermal conductivity (Temper T651) 135-150 W / Mk
  • Electrical conductivity at20 ° C (Temper T651) 19-23 MS / m

MECHANICAL STRENGTH
Min.tensile properties (Temper T651 / EN Standard 485-2)

Thickness
(over...to)
Rm
[MPa]
Rp0.2
[MPa]
A50
[%]
5,9-15 mm 410 350 8
15- 35 mm 400 340 8
35 - 60 mm 400 340 8
60 - 80 mm 390 330 8
80 -120 mm 390 330 7

Typical strength for various thicknesses

Thickness
(over...to)
Rm
[MPa]
Rp0.2
[MPa]
A50
[%]
HB
5,9 - 15 mm 420 370 13.0 125
15 - 35 mm 410 355 12.5 125
35 - 60 mm 415 365 12.0 130
60 - 80 mm 410 360 10.5 125
80 -120 mm 405 355 10.0 125

TOLLERANCES

Thickness Thickness tolerance
All ±0.10 mm
Thickness Longitudinal e transverse flat
6- 15 mm max. 0,50 mm / m
15.1- 120 mm max. 0,25 mm / m
Thickness Roughness Ra
All max.0.40 μm

** Heating the alloy can result in loss of strength of properties or of capability for fabrication, assembly or application in a particular case. Whenever a new application of this alloy is contemplated, and if this application involves special properties such as corrosion resistance,toughness, fatigue strength, it is strongly recommended that the user should consult the producer in order to make a precise and appropriate selection of the material. The information in this publication does not imply a guarantee of properties or of capability for fabrication, assembly or application in a particular case.

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