Engineering topics
Publications and source records attributed to Bodemeijer, Ronnald.
Method of evaluating configurations of electroforming shields reduces cost of evaluation. Applicable to electroformed parts that have axes of symmetry. Involves electroforming material onto two-dimensional approximation of part in question, using side shields to be evaluated. Eliminates expense of constructing full three-dimensional model but makes possible to perform evaluation almost immediately.
Simple procedure makes gaps visible to eye. New gap-detection method consists of plating thin layer of non-silver-colored metal like copper or gold on anode. Contrast in color between plated metal and bare anode material makes gaps stand out. If anode passes inspection, copper or gold plate removable by reversal of test-plating current. Remains to be determined whether test plating and removal damages anode. New method simpler and more economical than previous attempts to identify gaps in platinum.
Removal of dissolved oxygen from deionized rinse water improves bond between electroplated metal and base metal. Oxygen removed by bubbling nitrogen through rinse water before used.