Removing Welding Smut from Aluminum
Question: We are welding 6063 aluminum extrusions and are looking for an efficient way to remove the welding smut from the parts.
Question:
We are welding 6063 aluminum extrusions and are looking for an efficient way to remove the welding smut from the parts. What do you suggest? R.W.
Answer:
There are probably several different approaches you could use. The approach you choose might be based first upon the volume of parts you are producing, and then on how much of a capital investment you are willing to make. There are a couple of ways that make sense to me from a production standpoint. You can decide which might be the best method for your situation.
The first method would be to set up a chemical cleaning process that would include the following steps:
The second method would be to wire brush or grind the parts clean.
You don't say what you intend to do with the parts after they are cleaned. Will you be applying a corrosion inhibiting or decorative finish? If so, the process above may want to be modified somewhat to accommodate the finishing. Feel free to contact me for additional discussion.
Related Content
-
NASF/AESF Foundation Research Project #122: Electrochemical Approaches to Treatment of PFAS in Plating Wastewater - 7th Quarterly Report
The NASF-AESF Foundation Research Board has selected a project on addressing the problem of PFAS and related chemicals in plating wastewater streams, studying PFAS destruction via electrooxidation and electrocoagulation. Our last report described the results from experiments of EO with a Magnéli phase Ti4O7 anode on the degradation of eight perfluoroalkyl acids (PFAAs). In this seven quarter report, we describe work to further explore how the degradation of different PFAAs are related to their molecular structures.
-
NASF/AESF Foundation Research Project #120: Electrochemical Destruction of Perfluorooctanesulfonate in Electroplating Wastewaters – January – December 2023
This NASF-AESF Foundation research project report covers quarterly reporting for the year 2023 at the University of Illinois at Chicago. The objective of this work is to utilize a cost-effective reactive electrochemical membrane (REM) for the removal of PFAS from synthetic electroplating wastewater. Discussed here are the oxidation of PFOA with three different catalysts, development of a method for detecting PFAS, as well as work on 6:2-fluorotelomersulfonic acid (6:2 FTS) and electrodeposited bismuth/tin oxide catalysts.
-
Top 5 Areas to Consider Automation of Plating Operations
Automation for finishing operations can lead to improvements in process time, repeatability and consistency of quality. Yet, processes that make sense to explore for these operational efficiencies may not always be readily apparent.