Influence of Processing Parameters on Disc Stamp Quality by Adding Ni Semi-Bright During Electroforming Process
| Autor: | Shih-Ting Hung, 洪士婷 |
|---|---|
| Rok vydání: | 2007 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 95 Micro electroforming technology of the LIGA process is very important and has a great effect on the replication of micro-structure. In this study, the effects of processing and adding Ni semi-bright during electroforming process on disc stamp quality were been investigated. From the result of study, the stamp of electroforming with Ni semi-bright has bigger hardness. The hardness of stamp has increased 76.58% and reaches the maximum when solution temperature, current density and Ni semi-bright are 60℃, 13.5ASD and 15ml, respectively. The improving of hardness is Ni deposit transition form pillar to layer forms that can be observed the cross section via a metallographic. For the hardness and surface roughness of the stamp, the higher hardness and lower surface roughness need high solution temperature, low current density and adding Ni semi-bright. The higher solution temperature, higher current density and adding Ni semi-bright will get thicker and not uniform stamp. Form this study, it will lead to a better understanding on the electroforming characteristics. We can choose and adjust the parameters to get suitable and economic efficiency way during electroforming process. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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