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 Machining Face Surfaces -- Post Reply Forum
 Posted by: Angi ® 04/04/2005, 16:25:27 Author Profile Mail author Edit Question -- I have a spec requiring machined surface finish of 3.2um max on one item; and 12.5um max on another. Can someone please tell me how this converts to uin? Normally we just state '125rms' or '500rms' surface machining.Thanks, Angi

 Replies to this message

 Re: Machining Face Surfaces -- Re: Machining Face Surfaces -- -- Angi Post Reply Top of thread Forum
 Posted by: bjhughes ® 04/05/2005, 12:05:28 Author Profile Mail author Edit Angi, 1 um = 1/40 uinTherefore, 3.12 um = 125 uin, and 12.5 um = 500 uin.Hope this helps.

 Re: Machining Face Surfaces -- Re: Re: Machining Face Surfaces -- -- bjhughes Post Reply Top of thread Forum
 Posted by: Angi ® 04/05/2005, 12:20:37 Author Profile Mail author Edit Thank you for your reply. It was very helpful. Can you also please tell me the definition of 'uin' and 'um'. I'm assuming uin is units in inches or something like that and um refers to metric units. I am trying to pass along this knowledge to my production department and don't want to stear them the wrong direction.Again, thanks so very much for your help.

 Re: Machining Face Surfaces -- Re: Re: Machining Face Surfaces -- -- bjhughes Post Reply Top of thread Forum
 Posted by: Angi ® 04/05/2005, 12:20:14 Author Profile Mail author Edit Thank you for your reply. It was very helpful. Can you also please tell me the definition of 'uin' and 'um'. I'm assuming uin is units in inches or something like that and um refers to metric units. I am trying to pass along this knowledge to my production department and don't want to stear them the wrong direction.Again, thanks so very much for your help.