Really? I know nothing about metal? You said metals can deform at LOW TEMPERATURES, such as 70F-100F I assume. Soft metal can easily handle 400F-500F before deforming it does in fact become softer, but provided you don't hammer it then there are no consequences. It's only carbon steel that tempers at those temperatures, nonferrous metals and LCS will return to their earlier state. Buffing heats the surface and even when a piece too hot to touch the core is still cold so water works perfectly.
part 2. Think about non-stick frying pans the heat is well above 500F for long durations and they are made of aluminum. That said I still don't let them get too hot to touch some where under 120 F that is under the temperature that you expose your parts to when you clean them with hot tap water and that is for a longer exposure time.
@alexanderkm11 to each his own i always say but i cant afford to take the risk been there done that wrote the book and burned it , lessons well learned , i play it safe thanks, you can do what ever you want and think what you like, someday youll learn as i did and then youll change your ways as I did.. have a nice day
5 hours to polish that one piece of brass! can you be any more unproductive. I could do that in 5-10 minutes, what's my secret. I use a bench grinder with a soft and a stiff muslin wheel, apply reasonable pressure, use 1000 instead of 600 grit sand paper prior to buffing and most importantly when the part gets hot I don't laze around at a four to one break to work ratio. I use a damp cloth to cool the part then dry before continuing.
@KevinMillard68 I agree that heat can be a problem thats why I use a damp cloth to cool the part quickly when need be. You said that you do this for a living, that would mean that you will need to charge $50 for the polishing just to get minimum wage. If you really need to stop a project then find something productive to do in the mean time, polish another part, machine some other project.
@alexanderkm11 its only 1 of several kobsi do for a living , i own a muilty business, custom machine work,airgun mods computers small engine repair auto repair , auto body and paint,welding, if you under stand metal you will also know that heat can comprimise the structural integrity of the metal as well.hence the reason i watch the heat very closly as to not allow this to happen plus brass bronze and aluim will deform even at low temps so you have to watch how much heat you allow
@alexanderkm11 you realy know nothing about metals do you and you didnt read my last post from the sounds of things either go back and read it please . ,, and its not a waste of time to do the job right the first time,and my cutomers do not pay extra for the time it takes me to polish the items i make for them.
Really? I know nothing about metal? You said metals can deform at LOW TEMPERATURES, such as 70F-100F I assume. Soft metal can easily handle 400F-500F before deforming it does in fact become softer, but provided you don't hammer it then there are no consequences. It's only carbon steel that tempers at those temperatures, nonferrous metals and LCS will return to their earlier state. Buffing heats the surface and even when a piece too hot to touch the core is still cold so water works perfectly.
alexanderkm11 6 months ago
@alexanderkm11
part 2. Think about non-stick frying pans the heat is well above 500F for long durations and they are made of aluminum. That said I still don't let them get too hot to touch some where under 120 F that is under the temperature that you expose your parts to when you clean them with hot tap water and that is for a longer exposure time.
alexanderkm11 6 months ago
@alexanderkm11 to each his own i always say but i cant afford to take the risk been there done that wrote the book and burned it , lessons well learned , i play it safe thanks, you can do what ever you want and think what you like, someday youll learn as i did and then youll change your ways as I did.. have a nice day
KevinMillard68 6 months ago
5 hours to polish that one piece of brass! can you be any more unproductive. I could do that in 5-10 minutes, what's my secret. I use a bench grinder with a soft and a stiff muslin wheel, apply reasonable pressure, use 1000 instead of 600 grit sand paper prior to buffing and most importantly when the part gets hot I don't laze around at a four to one break to work ratio. I use a damp cloth to cool the part then dry before continuing.
alexanderkm11 6 months ago
@alexanderkm11 you do it your way ill do it mine iam making percision parts and heat can distort the brass , better to be safe then sorry
KevinMillard68 6 months ago
@KevinMillard68 I agree that heat can be a problem thats why I use a damp cloth to cool the part quickly when need be. You said that you do this for a living, that would mean that you will need to charge $50 for the polishing just to get minimum wage. If you really need to stop a project then find something productive to do in the mean time, polish another part, machine some other project.
alexanderkm11 6 months ago
@alexanderkm11 its only 1 of several kobsi do for a living , i own a muilty business, custom machine work,airgun mods computers small engine repair auto repair , auto body and paint,welding, if you under stand metal you will also know that heat can comprimise the structural integrity of the metal as well.hence the reason i watch the heat very closly as to not allow this to happen plus brass bronze and aluim will deform even at low temps so you have to watch how much heat you allow
KevinMillard68 6 months ago
@KevinMillard68
So why not use water to cool it rapidly instead of wasting time.
alexanderkm11 6 months ago
@alexanderkm11 you realy know nothing about metals do you and you didnt read my last post from the sounds of things either go back and read it please . ,, and its not a waste of time to do the job right the first time,and my cutomers do not pay extra for the time it takes me to polish the items i make for them.
KevinMillard68 6 months ago
Kevin that part you made is 100% awsome, you are THE MAN.
camochannel1 6 months ago
@camochannel1 thanks i do my best
KevinMillard68 6 months ago
@camochannel1 can you resend me the video i think i accendetly deleted it
KevinMillard68 6 months ago
I have 3 grades of jewelers rouge for use on my buffing wheel and save my worn out sand paper. I can put the shine on stuff.
snoopdog68 6 months ago
@snoopdog68 cool cool
KevinMillard68 6 months ago
★★★★★
Great video Kevin! Very informative.
TheMultiGunMan 6 months ago
@TheMultiGunMan thanks man
KevinMillard68 6 months ago