Three wagons method to analyze ductile mode grinding processes

Oliver Faehnle; Marius Doetz; Olaf Dambon; Eckhard Langenbach

doi:10.1117/12.2315337

15 June 2018 Three wagons method to analyze ductile mode grinding processes

Oliver Faehnle, Marius Doetz, Olaf Dambon, Eckhard Langenbach

Proceedings Volume 10692, Optical Fabrication, Testing, and Metrology VI; 106920Y (2018) https://doi.org/10.1117/12.2315337
Event: SPIE Optical Systems Design, 2018, Frankfurt, Germany

Abstract

Ductile mode machining is usually applied for the optical finishing operation of e.g. tungsten carbide molds to be used for precision glass molding. In this paper, we report on a process analysis of ductile mode machining analyzing the influences of critical process parameters on the level of surface roughness being generated for tungsten carbide. To that aim, a recently developed method for process optimization in optics fabrication, the three wagons method, was applied identifying critical process parameters determining the eventual level of surface roughness within the ductile process window of UPM machining. Based on the experimental data collected, a new formula was developed enabling the prediction of the level of surface roughness being generated by ductile machining. Applying this formula, an optimized set of critical process parameter values has been determined predicting a minimum level of surface roughness on tungsten carbide (CTN01L) by ductile mode material removal of about 1 nm rms which has been proven in experiment. The developed formula enables a better predictability of level of surface roughness within the process window of ductile mode machining.

Citation Download Citation

Oliver Faehnle, Marius Doetz, Olaf Dambon, and Eckhard Langenbach "Three wagons method to analyze ductile mode grinding processes", Proc. SPIE 10692, Optical Fabrication, Testing, and Metrology VI, 106920Y (15 June 2018); https://doi.org/10.1117/12.2315337

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available