High precision, mold not only to have high machining accuracy, but also to have good processing quality. Generally, the tolerance range should be controlled at micron level. Only high-precision mold can ensure the product to achieve a certain precision, ensure the qualified rate of the product, it is possible to extend the use of the mold. Long service life, the mold belongs to the more expensive process equipment, its processing cost accounts for about 10% ~ 30% of the cost, so it is more meaningful to require a long life of the mold.

制造周期短，这主要是为了满足生产的要求和产品的市场竞争能力。成本低，模具的成本与模具结构的复杂程度、模具材料、制造精度要求及加工方法等有关。所以要合理设计和制定加工工艺，选用恰当的加工设备，保证低的加工成本。

Short manufacturing cycle, which is mainly to meet the requirements of production and market competitiveness of products. The cost of mold is related to the complexity of mold structure, mold materials, manufacturing accuracy requirements and processing methods. Therefore, the processing equipment should be reasonably designed and selected.

模具形状复杂，模具的工作部分一般都是二维或者三维复杂曲面，而不是简单的平面。比如汽车覆盖件模具，其内腔大部分都是由曲面组成。所用的材料硬度高，一般模具都是由淬火工具钢或硬质合金制成,运用传统的加工方法加工较为困难。

The mold shape is complex, the working part of the mold is generally two-dimensional or three-dimensional complex surface, rather than a simple plane. For example, the inner cavity of automobile panel die is mostly composed of curved surface. The hardness of the materials used is high. Generally, the dies are made of hardened tool steel or cemented carbide, so it is difficult to process them with traditional processing methods.

目前在模具加工制造过程中，主要以普通机加工和电火花加工为主。要缩短制造周期并降低成本，必须广泛采用切削加工技术加工模具。而作为制造技术的高速切削技术的出现，正是满足了模具加工这些要求和特点。

At present, in the process of mold manufacturing, ordinary machining and EDM are mainly used. In order to shorten the manufacturing cycle and reduce the cost, it is necessary to widely use the advanced cutting technology to process the mold. As an advanced manufacturing technology, the emergence of high-speed cutting technology is to meet the requirements and characteristics of mold processing.