-Method/Methodology expected to be used
-Students expected contribution to the project
-gnatt chart required as part of interim report
Proposed title: Lean Implementation and Product Flow Optimisation in the Production of Contact Lenses.
ANSI/ASQ Z1.4-2003 (R2018): Sampling Procedures and Tables for Inspection by Attributes is an acceptance sampling system to be used with switching rules on a continuing stream of lots for Acceptance Quality Limit (AQL) specified. It provides tightened, normal, and reduced plans to be applied for attributes inspection for percent nonconforming or nonconformities per 100 units.
Details of Background & Objectives of the project. The objective of the project is lean implementation and Product Flow Optimisation in the production of contact lenses. Controls in place are non-conformances. Defective contact lenses and cartons from the contact lenses and packaging will be investigated by a process called in process hold. A batch of produced contact lenses or contact lens cartons will not be shipped until the sample amount required has been investigated. The sampled amount is a representation of the total quantity. Acceptance criteria per procedure is accept on 11 defect and reject on 12 plus. Example: A total amount of 15 Cartons were found to display the defect on die station 4. Recommendation is to segregate cartons from die station 4. A new Certificate of Conformance is required from the supplier to show that cartons from die station 4 have been segregated. Until this has been received the cartons will be reworked and released. Meaning that all cartons from bar cartons die station 4 will be reworked, released and distributed. This process may potentially prevent a future recall. Product flow optimization will be implemented in the form of special test requests. This is done by validating new products and components when new production lines are introduced. An example of this would be to a new supplier of monomer has been being assessed to ensure that it can be used in production. A shipment of the monomer would then be tested in the on-site Chemistry Lab to ensure the monomer meets requirements as per procedure. Other examples of this would be foreign matter identification, material sizing, Fourier transformer Infrared microscopy, water content testing, Ultraviolet Light testing, Refractive Index Test and Decanoic Acid Testing.