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Positive dwell time algorithm with minimum equal extra material removal in deterministic optical surfacing

Longxiang Li, Donglin Xue, Weijie Deng

|November 14, 2017

Summary

This summary is machine-generated.

Accurate dwell time control in computer-controlled optical surfacing is vital. This study introduces a new algorithm considering machine dynamics to improve surface error convergence in deterministic finishing processes.

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Area of Science:

Optical Engineering
Manufacturing Technology
Precision Engineering

Background:

Accurate dwell time execution is critical for high-convergence ratios in computer-controlled optical surfacing.
Machine dynamics limitations must be incorporated into numerical dwell time algorithms for deterministic processes.

Purpose of the Study:

To analyze constraints on dwell time distribution in computer numeric control (CNC) machines.
To develop a positive dwell time algorithm that minimizes extra material removal while considering machine dynamics.

Main Methods:

Analysis of dwell time distribution constraints.
Establishment of an equal extra material removal model.
Development of a positive dwell time algorithm with minimum equal extra material removal.

Main Results:

Simulations based on deterministic magnetorheological finishing (MRF) were performed.
The necessity of considering machine dynamics performance was demonstrated.
The proposed algorithm showed validity in facilitating deterministic sub-aperture optical surfacing.

Conclusions:

Incorporating machine dynamics into dwell time algorithms is essential for deterministic optical surfacing.
The developed algorithm effectively enhances the determinacy of sub-aperture finishing processes.
This approach contributes to achieving higher accuracy and convergence in optical surface error correction.