LensPolish

Parameters and polishing conditions can now be entered on the screen!!

The lens polishing simulation program simulates the polishing process when using an Oscar-type polishing machine, with the tool on the upper lap and the work on the lower lap.

The process of the lower lap being polished and the upper lap wearing down is calculated based on Preston's fundamental theoretical formula [the amount of polishing or wear is proportional to the product of the pressure acting between the upper and lower laps, the relative speed, and the polishing time], under the following assumptions.　

(1) The lower lap (work) is a rigid body.．

　(2) The lower lap (work) is circular, and the upper lap (tool) is circular or annular.

　(3) Pressure and the amount of deformation of the upper lap are proportional．

　(4) The upper lap (tool) motion is an Oscar-type motion caused by a lever-crank mechanism that passes through the center of the lower lap (work).

　Its features are as follows:

　(1) Consider the wear and tear on the upper lap (tool).

　(2) It also handles situations where the lower tray (sample) and upper tray (tool) are not in contact and the pressure becomes zero.

　(3) The rotation speeds of the lower lap (work) and upper lap (tool) are arbitrary, or they are driven rotations where they rotate together.

　(4) The relative velocity distribution and pressure distribution during processing are displayed on the screen, and it is also possible to take hard copies of them, allowing you to see how the lower lap (work) and upper lap (tool) wear down.

　(5) The optimal oscillation speed can be calculated to achieve uniform polishing amount across the entire lower lap, or to obtain high flatness (not available in the trial version).