All MetalShaping

Go Back   All MetalShaping > Metal Shaping Projects > Beginner Projects
  Today's Posts Posts for Last 7 Days Posts for Last 14 Days  

Reply
 
Thread Tools Search this Thread Display Modes
  #21  
Old 09-22-2021, 02:34 PM
Nate S Nate S is offline
Member
 
Join Date: Sep 2021
Location: Central Indiana
Posts: 12
Default

Quote:
Originally Posted by Overkill View Post
Nate,

For polishing my bar top epoxy bar tops I have purchased a Buffpro polisher, but I have yet to test it out. What I liked about the product was the linear polishing, similar to the SCT, so that swirls aren't an issue. But it uses a slower speed, wider wheel, and has the handles in a better position for polishing.

https://buffpro.com/?gclid=CjwKCAjw4...RoCSuQQAvD_BwE

One of these days I'll give it a try on aluminum.
Thats pretty cool. I am so out of touch when it comes to polishing hardware. I really appreciate the help!
__________________
Nate S - Instagram: @hammerformed
Reply With Quote
  #22  
Old 10-05-2021, 10:31 PM
Nate S Nate S is offline
Member
 
Join Date: Sep 2021
Location: Central Indiana
Posts: 12
Default

Quote:
Originally Posted by crystallographic View Post
" I'm going to test a section and see how polishing goes. "
.................................................. .........................................

Very nice project, Nate.
Good shapes and your wheel looks like it is making good true surfaces.


Polishing? That will be an .edu.
"Do not touch" usually follows.


I'd recommend something reasonable and effective for this job:
maroon scrub pads soaked with 70% isopropyl - applied with elbow grease.


You may actually like the surface afterwards - and it is easy to blend, along with usage happening.

Attachment 61353
I think I’ve altogether ditched the polishing idea in favor of this. Seeing as this is my first metal shaping project I think polish would highlight some areas that I wish I could do completely over. And I like the “easily blendable” part as I hope this gets raced hard by some toddlers haha.

Just out of curiosity what does the alcohol do?? Is it just a clean lubrication? I preclean weld areas with acetone at the moment, will that work the same?
__________________
Nate S - Instagram: @hammerformed
Reply With Quote
  #23  
Old 10-06-2021, 06:51 AM
dwmh dwmh is offline
MetalShaper of the Month May 2018
 
Join Date: Aug 2015
Location: Nr Oxford UK
Posts: 455
Default

I think that's a good decision Nate. I admire the dedication of those that go for a polished finish, it takes a huge amount of effort as you find the work is not as perfect as you hoped.

I too used to use acetone for cleaning before welding, until Kent posted on the harmful fumes from acetone, at his recomendation I switched to iso-propyl alcohol.
__________________
David Hamer
Reply With Quote
  #24  
Old 10-06-2021, 06:21 PM
Charlie Myres Charlie Myres is online now
Member
 
Join Date: Jun 2013
Location: Narrogin, Western Australia
Posts: 458
Default

Both of those chemicals are hazardous to health according to the MSDS,

Cheers Charlie
__________________
Why does dust stick to everything, but nothing sticks to dust?
Reply With Quote
  #25  
Old 10-07-2021, 01:00 AM
crystallographic crystallographic is offline
MetalShaper of the Month October '14 , April '16, July 2020
 
Join Date: Dec 2010
Location: Western Sierra Nevadas, Badger Hill, CA
Posts: 3,826
Default

Quote:
Originally Posted by Nate S View Post
I think I’ve altogether ditched the polishing idea in favor of this. Seeing as this is my first metal shaping project I think polish would highlight some areas that I wish I could do completely over. And I like the “easily blendable” part as I hope this gets raced hard by some toddlers haha.

Just out of curiosity what does the alcohol do?? Is it just a clean lubrication? I preclean weld areas with acetone at the moment, will that work the same?

Hi Nate,
We've tried a number of "cleaning lubricants" with the aluminum surface thing, over the decades. I won't list them here ...
But..... 91% isopropyl is very ideal for our uses - and as the two PhD research chemists who have popped in have told us, " Excellent solvent, Mr. White: Clean. Cheap. Available. Non-toxic."

And for us, "the lubricity is ideal."


(psst: "chlorinated hydrocarbons," acetone being one popular type, actually create phosgene gas when wet within a high-frequency electric field (tig welding aluminum, anyone??). For those who do not know about WW1 gas attacks, thousands upon thousands of troops were gassed with "mustard gas" aka "phosgene gas" - which either killed them outright or rendered them completely helpless and permanently injured.



Acetone is not recommended near any type of electric welding, no way, no how....!!!!

--- that is all ---
__________________
Kent

http://www.tinmantech.com

"All it takes is a little practical experience to blow the he!! out of a perfectly good theory." --- Lloyd Rosenquist, charter member AWS, 1919.

Last edited by crystallographic; 10-07-2021 at 01:12 AM.
Reply With Quote
  #26  
Old 10-07-2021, 01:21 AM
Jaroslav Jaroslav is offline
MetalShaper of the Month April 2020, September 2021
 
Join Date: Dec 2012
Location: Czech Republic
Posts: 1,592
Default

Nate. Nice work. I see the discussion about polishing. In some cases, for example, I used fiberglass to clean aluminum crankcases. I disassembled the glass cloth for lamination, straightened the individual fibers side by side. He wrapped it in paper like a cigar and tied it with soft wire. This simple thing can reliably clean all the details that are needed. After a fine pre-sanding, it unifies the surface. I made an attempt for about 5 minutes for an example.
Very fine lime can be used to clean stainless steel surfaces. Removes all traces of hands and stabilizes - protects the surface. Until further cleaning. Maybe it will work similarly for aluminum.
People don't like to give their handprints, but when they see something shiny, they have to touch.
DSC08366.JPG

DSC08365.JPG

DSC08367.JPG

DSC08369.JPG

DSC08370.JPG
__________________
Jaroslav
Reply With Quote
  #27  
Old 10-07-2021, 08:37 AM
Nate S Nate S is offline
Member
 
Join Date: Sep 2021
Location: Central Indiana
Posts: 12
Default

Quote:
Originally Posted by crystallographic View Post
Hi Nate,
We've tried a number of "cleaning lubricants" with the aluminum surface thing, over the decades. I won't list them here ...
But..... 91% isopropyl is very ideal for our uses - and as the two PhD research chemists who have popped in have told us, " Excellent solvent, Mr. White: Clean. Cheap. Available. Non-toxic."

And for us, "the lubricity is ideal."


(psst: "chlorinated hydrocarbons," acetone being one popular type, actually create phosgene gas when wet within a high-frequency electric field (tig welding aluminum, anyone??). For those who do not know about WW1 gas attacks, thousands upon thousands of troops were gassed with "mustard gas" aka "phosgene gas" - which either killed them outright or rendered them completely helpless and permanently injured.



Acetone is not recommended near any type of electric welding, no way, no how....!!!!

--- that is all ---
I picked some 70% IPA up from the hardware store (they didnt have the high test stuff) and tried a sample piece last night.

Safety aside, the IPAs slower evaporation made it a LOT easier to work with. And it was certainly cheaper. I think I will transition from acetone to IPA for general cleaning and weld prep for those reasons. I'll keep the acetone for the really tough stuff.

The IPA and scotch brite pad finish is really cool! It'll show plenty blemishes just the same but hey... I'm proud of those. I spent dozens of hours and gallons of sweat on those blemishes haha.
__________________
Nate S - Instagram: @hammerformed
Reply With Quote
  #28  
Old 10-11-2021, 02:27 PM
Nate S Nate S is offline
Member
 
Join Date: Sep 2021
Location: Central Indiana
Posts: 12
Default

Here is some recent progress. Fitting and welding the headrest nacelle was probably one of the most nerve racking parts of this so far. I'm so happy with it though!

nacelle tacked.jpg

nacelle welded.jpg

nacelle blended.jpg
__________________
Nate S - Instagram: @hammerformed

Last edited by Nate S; 10-11-2021 at 02:30 PM.
Reply With Quote
  #29  
Old 10-12-2021, 06:11 AM
dwmh dwmh is offline
MetalShaper of the Month May 2018
 
Join Date: Aug 2015
Location: Nr Oxford UK
Posts: 455
Default

The fit of the headrest looked spot on. As did the finished job.
__________________
David Hamer
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -5. The time now is 06:29 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.