(03-08-2017, 04:47 AM)KevinS Wrote: (01-02-2017, 10:35 AM)hereticgame Wrote: Hello Everyone!
I need an help in how to remove lines appearing between mount and coating in microstructure taken in 200X .
Powder used is stellite-12(HVOF spray)
Polishing method : Final polishing usind DAC (0.5-1micron diamond paste)
Note: If i replace the final polishing method using Chem pad and OPS solution then i dont get lines which i got using diamond paste (Water soluble)
Any help would be great .......... Thanks
The grinding steps between your initial course grind and the final find grind are either missing steps or are lacking in time, Suggest you either add steps or increase time as all you are seeing is left over damage from a coarse grinding operation. This is assuming your pressures are about 20-25N.
(01-02-2017, 10:35 AM)hereticgame Wrote: Hello Everyone!
I need an help in how to remove lines appearing between mount and coating in microstructure taken in 200X .
Powder used is stellite-12(HVOF spray)
Polishing method : Final polishing usind DAC (0.5-1micron diamond paste)
Note: If i replace the final polishing method using Chem pad and OPS solution then i dont get lines which i got using diamond paste (Water soluble)
Any help would be great .......... Thanks
Hi Kevin,
Thanks for suggestion , You are right in this i later came to know about this , But we are not equipped with automatic polishing machine . I do polishing manually by hand and yes about the Steps , i use 180 , 320 , 600 ,800 , for 30 sec each grit .
Thanks for help i will try to add more steps and apply little bit more pressure. the only problem with adding steps is it has a chance to loose its flatness when doing manually. thats why i reduce steps.