Hardcoat 2024 Alloy


Screw and CNC Machine Manufacturer:

A screw manufacturer came to Alpha with a 2024 alloy part which required hardcoat anodizing (Type III). Since 2024 is high in copper it can have a propensity to burn in the process.


The customer’s particular hinge part was not only 2024 alloy, but had a significant number of hot points that the design of the part required.


Our team calculated the surface area of all parts, as well as how many were going to be racked on a load. In doing this, we were able to measure the exact time and current density needed to slowly build up the coating thickness without having hot point areas burn.


The process was a success. The hinge parts were evenly coated with no burns.