1 Introduction
Production tools (better known as moulds) are an essential element in the manufacturing of wide consumption goods.The design and the fabrication of moulds are a very long and expensive step in the development of a new product.For such reason, any effort improving moulds’ manufacturing helps to reduce times and costs.
Nowadays, modern CAD/CAM technologies and five-axis high-speed milling allow:
1、導言
生產(chǎn)工具（稱為模具）是大部分產(chǎn)品制造的一個重要組成部分。在開發(fā)新產(chǎn)品過程中，設計和制造模具是一個非常漫長和昂貴的一步。正是這樣的原因，任何努力提高模具的制造有助于降低成本和時間。
如今，現(xiàn)代的CAD / CAM技術及5軸高速銑削允許：
1、 三維CAD模型的快速模具的設計;