We have taken a brand new technics for manufacturing SiC reflecting mirror which is different from the traditional method

it is called as fixed abrasive surfacing technics. Not only the new method achieves better mirror quality with bigger diamond in diameter quickly

but also because of the fixed motion between the abrasive and workpiece and it will be good for surface finishing. In the experiment

material removal characteristic which is on SiC under certain rotation speed and pressure by W7

W5

W3.5

W1.5 pellets has been tested. Through those removal curves

we come to a conclusion that the technics not only has a higher removal rate

but also has much more stability. In addition

the surface roughness experiment is mentioned. In the first beginning

we achieved a mirror whose surface roughness is 42.758nm rms with W7 pellets. The surface roughness is descending as we change pellets with smaller diamond in diameter . At the end of experiment

a smooth surface whose roughness is 1.591nm rms has been achieved after using W1.5 pellets. The results of the experiment indicate that the technics which manufactures SiC reflecting mirror with fixed abrasive is able to replace the traditional slurry abrasive completely in certain finishing phase and also has a great foreground in application..