Re: Aluminum cleaning
That finishing requirement is pretty much a standard notation on all drawings. If the customer is happy with the pieces as they come out of the laser then no further finishing is required.
If not, then hand deburring and/or vibratory finishing might be required. Normally just some degreasing solution (liquid household cleaner) in the vibratory water is good enough. Another option for cleaning is a standard home dishwasher, I use mine for this all the time. There are commercial part cleaning systems, but for short runs it really makes no sense to spend that kind of money.
Bottom line is that the customer sets the requirements.
Jim Dawson
Sandy, Oregon, USA