Why slow Pulse Anodizing is the only way to go !

You can now buy the Ph.D Thesis "Pulse Anodizing of Extruded and Cast Aluminum Alloys"


The main issue of this thesis is pulse anodising of aluminium, both extruded and cast aluminium alloys. The use of pulse anodising is of great interest to the industry whether the pulse time should be fast (high frequency pulses) or slow (low frequency pulses) to get the optimum use.

The pulse time has been investigated by choosing three different pulse anodising methods using the same extruded aluminium alloy 6063. They have each been evaluated through a number of different tests and all have been compared to conventional DC anodising.

It has not been possible to select a single method that has superior properties to the other concerning the properties of the oxide layer. Though a very important parameter for the industry, namely, the total treatment time has been shown to be almost twice as short when using the low frequency pulses compared to conventional DC anodising.

The most commonly used cast aluminium alloys are the ones with a content of silicon between 7 – 12 wt%. Investigations of the oxide layer formed on this alloy by hard anodising, both pulse and conventional hard anodising, shows a non uniform oxide layer without any corrosion or wear resistance. Five aluminium alloys were chosen in order to compare the oxide layer with each other by various tests. It was found that the oxide layer formed on the AlZn5 alloy shows the best properties according to the tests performed.

Send me an email, buy@aluconsult.com and I will send you the pdf-document.

Price 150,00 US dollars.