For example , it is challenging for the chemical etching process to drop below a 1 . 5 aspect ratio while , with laser cutting and electroforming , apertures can be produced that have a 1 : 1 aspect ratio to the stencil thickness 比如，表观比率低于1 . 5对于化学腐蚀试一大挑战，而激光切割和电铸可制成表观比率为1 . 1的钢网。
As a precision manufacture technology , electroforming using electrodeposition of metal on a cathode mandrel to make products has successfully been applied in many advanced technology fields 电铸是一门精密制造技术，它利用金属离子阴极电沉积的原理制取产品，具有极高的制造精度和独特的优点，在许多高新技术领域取得了成功的应用。
However , its further application and development have been limited by some problems in practices , such as the long processing time , the poor metal distribution , some defaults emerging in deposition layers and so on 但是，目前电铸技术存在着加工时间长，铸层均匀性差，铸层易出现缺陷等缺点，这严重制约着电铸技术的应用与发展。
Finally , on the foundation of the prephase experimentation , we explored some application of numerical control jet electroforming , including two main directions ? making parts with deep grooves and directly forming metal parts 进行了数控喷射电铸的前期工艺试验。最后，在前期工艺试验的基础上，对数控喷射电铸的应用进行了初步探索。
5 ) using successfully numerical control jet electroforming to make nano copper which has very good mechanics character . . 6 ) first combining numerical control jet electroforming and tradition electroforming to make mould which has v trough . , 6 )首次利用数控喷射电铸和传统电铸相结合制备了具有深沟槽的模具，完善了用电铸制备模具的工艺。
To avoid these problems , the paper proposes a new technology ? umerical control jet electroforming . firstly , we established the theoretical model of this technology , including electric field model and hydrofield model of the electroforming area 首先，我们建立了数控喷射电铸的理论模型，包括电铸区域的电场分布模型和电铸液的流场分布模型。
The technology not only reduces working procedure but avoids conversion errors caused by making transition model , and can ensure edm performance of the obtained electrode using the combination of puls 该工艺不仅减少了工序，还避免了因翻制过渡模型带来的转换误差，将脉冲电铸和电弧摘要喷涂紫铜背村相结合制造电极，能保证电极的电加工性能，可以实现高效率、高精度和低成本的快速模具制造。
On the foundation of manufacturing numerical control jet electroforming machine , in this thesis , for numerical control jet electroforming , the research presented creative and conclusion works as follows : 1 ) numerical control jet electroforming machine was built successfully 本文在研制和开发数控喷射电铸机床的基础上，对数控喷射电铸进行了以下几个方面的研究并做出了一定的创新： 1 )成功开发了数控喷射电铸机床。
3 ) discusses the main reason that causing the defaults of electroforming and the principle and methods that can improve the qualities of electroforming products . based on the results of the theoretical analysis , the paper proposes the scheme of numerical control selective jet electroforming 3 )本文从电铸电化学机理的角度探讨了导致电铸缺陷的主要原因和提高电铸品质的方法和原理，并以此为基础提出了数控喷射电铸。
A new electroforming technique , numerical control jet electroforming , was proposed , it not only can solve some problem of tradition electroforming but also can make nano metal block and metal accessory , and the elemental research on the new technique was carried out 本文提出了一种新的电铸工艺方案? ?数控喷射电铸，不但能解决传统电铸的一些缺陷，而且可以制备纳米金属块体和金属零件，并通过理论分析和试验对该工艺进行了基础性研究。
