COMPOUND RAPID ELECTROFORMING TOOLING
Date Issued
2005
Date
2005
Author(s)
Wang, Chung-Min
DOI
zh-TW
Abstract
Rapid Tooling (RT) by using various back-up filler materials to reinforce the electroformed metallic thin shell resulted from rapid prototype has been proved feasible. However, electroforming on the prototype consisting high aspect ratio features is time consuming. Besides, it usually leads to distortion of the electroformed part. In this thesis an approach by integrating the Numerical Control (NC) machining with electroforming for RT purpose of the part having high aspect ratio features is proposed. Portions of the part that are difficult to be electroformed such as concaves, slots, vertical side walls, etc. are determined in advance based on the analysis of the CAD model. They are manufactured by CNC machining on the same electroformed material. They are inserted into the electroless plating RP model, and are jointed with each other during the following rotary-cathode electroforming process. Various parts having high aspect ratio features are taken to verify the proposed approach. It is found that the molds of acceptable accuracy are obtained. The NC part is closely joint with the electroformed shell. Analysis of the operations involve in mold making shows that the proposed approach can greatly shorten the time required in manufacturing the mold.
Subjects
電鑄
快速模具
快速原型
無電鍍
Electroforming
Rapid Tooling
Rapid
Prototype
Electroless Plating
High Aspect Ratio
Type
thesis
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