I have an application where i need to mill a 1.6mm diameter hole to a depth of 5mm in a 15-5 PH steel component. The accuracy of the hole is +/- 0.005mm. I have been trying to interpolate using a 1mm endmill which has a flute length of 2mm and the back is relieved. I' am not able to get consistency and each component comes out differently. I use a Deckel Maho machine which is very accurate. Can anyone help me with an alternative process idea or some method where i can get consistency in hole size with my present method ?
Using a Reamer is tough as the positioning accuracy is also very important and a reamer usually takes the drill position so the drill can guide it to wrong position. Just letting you guys know in case somebody thinks of reamer as an option.
Thanks