Micro Injection Molding Machine Analysis

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Contact lens is made up of plastic material and is directly placed on the anterior surface of eye to correct vision deficiences. Contact lens is used as substitution of spectacles. Currently, contact lens is more preferable as it comes in variety. One can change their eye color and appearance using colored pigment lens.
The present methods of manufacturing includes mainly – Spin casting and Mold casting. But this has disadvantage of generation of ripple marks on the posterior surface and also distorted final lens with variable density.
Use of micro-injection molding machine for lens manufacturing can possible reduce the error and also production will be cost effective.
In this report , we have included the plastic flow simulation results and the
…show more content…
It facilitates optimal automation solutions from granules right up to the finished and packaged molded part- to a shot volume of 8.0 cm3 . The Benefit of this machine is that it is a cost effective combined with a supreme level of precision.
Technical data:

2.4 MESHING[7]
To apply the partial differential equations that governs fluid flow and heat transfer for analyzing plastic flows, the flow domains are split into smaller elements, primarily made of triangles in case of 2D and Tetrahedral in case of 3D. The equations are then discretized and solved for each of these elements. The method of splitting the body into its elements id called meshing. Care must be taken to ensure proper continuity of flow across the common interfaces between two elements.

2.4.1 Meshing Classification

Meshing are classified as- mid-plane, surface and 3D meshing.
The first two are also called as 2D meshing. Common elements in 2D are rectangle and triangle. And in 3D it is tetrahedral and

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