Cast Aluminium tooling plate is manufactured under tightly controlled conditions, with both faces pre-machined to give an excellent surface finish and a flatness tolerance of 0.38mm or less.
Cast plate has excellent stability during and after machining which make it ideal for precision applications such as drilling fixtures, machining bedplates, assembly machine table and other uses in the plastics and electronics industries.
Aluminium 5083 is known for exceptional performance in extreme environments. 5083 is highly resistant to attack by both seawater and industrial chemical environments. Alloy 5083 also retains exceptional strength after welding. It has the highest strength of the non-heat treatable alloys but is not recommended for use in temperatures in excess of 65 °C.
two sides precision milled
very good corrosion resistance
Typical Fields of Application
Side and back panels of special purposes machines
Wherever form stability and elevated strength values are required
Model and mounting plates
All kind of gauges
Low Pressue and prototype Mould Making.
Jigs and Fixtures.
Alloy 5083 also corresponds to: GM41, A95083, AIMg 4.5 Mn and Al Mg 4.5 Mn 0.7.
Due to the bespoke nature of offering meterial cut to size products they are non-returnable.
Please ensure you check your requirements carefully prior to ordering.
Cutting tollerances are +2mm/-0.
If you need precise cutting or squareness, please contact us.
Critical speed is the first resonant frequency (speed) of the rotating shaft. Resonance in a rotating shaft can be catastrophic and even break the shaft. However, not all ball screws will necessarily exhibit such behavior since the nut represents another support of the shaft, permanently changing the unsupported length of the shaft and its resonant frequency.
It is necessary to confirm if the ballscrew rotational speed is within 80% of the critical speed of the ballscrew.
Figure 3.17 shows a diagram which summarizes the allowable rotational speed of the ballscrew shaft.
The allowable rotational speed is regulated also by dm - n value (dm: Diameter of central circlof steelball, n: Revolution speed-RPM) Which expressesthe peripheral speed.
For precision (Accuracy grade C7-C0) dm - n is lower that and equal to 70,000.
To make this calculation we have provided a handy calculators to measure the critical speed of a ballscrew.
The output form this calculator will show the approximate point at which the ballscrew will start to resonate (Whip) and you should consider to set the maximum RPM to 80% of this speed.