Die technology innovation and development of the machine upon request
Die innovative technology development, products are increasingly stringent accuracy requirements. Therefore, EDM mold flaws are exposed for the realization of the mold cavity and its related parts of the high-speed machining, the machine need to introduce the three main demands.
With the replacement rate of consumer products to speed up, mold technology also continues to develop, to the mold production efficiency and manufacturing quality higher and higher expectations, and thus the low EDM mold production efficiency and quality of instability defects were gradually exposed.
To achieve the mold cavity and its related parts of the high-speed machining, machine tools need to have the following characteristics:
1. As the mold is the direction of the large-scale development, and a few tons to several dozen tons of mold is very common, thus requiring machine work surfaces can withstand heavy weight, which requires equipment must have a large load-bearing characteristics and high rigidity, but also must have a sufficient a large table size and corresponding working stroke. In addition, the mold material strength and hardness are high, and, often, the larger the amount of elongation of small-diameter end milling mold cavity, the process prone to chattering. In order to ensure that the parts machining accuracy and surface quality for mold manufacturing, high-speed machine tool must have a high dynamic and static stiffness in order to improve the positioning accuracy of machine tools, tracking precision and anti-vibration capability.
2. High-speed and high-power high-speed machining is the development direction of high-speed milling in the mold processing has shown significantly superior. In order to meet the mold cavity surface processing, tool radius should be less than the minimum circle radius of the cavity surface in order to avoid processing tool and the workpiece happen "interference." As the tool diameter and small, thus requiring very high spindle speed, and foreign high-speed machine tool spindle speed has reached 40000 ~ 100,000 r / min, rapid traverse speeds of up to 30000 ~ 60000 min. Cavity and mold parts other parts rough, finishing is often a fixture of the workpiece and, therefore, spindle power to large, medium-size molds milling and machining center spindle power'll always be 10 ~ 40kW, and some even higher.
3. Can be a good multi-axis and the cutting ability of deep-hole-cavity mold cavity integrated over the space of complex surface and the grooves 6 posed, and many have a deep-hole-cavity mold. In order to achieve high accuracy of the 3D surface, high-speed and high stability of the processing needs of multi-axis machine tool, and has a good deep-hole-cavity integrated cutting ability. Five-axis machining center can be used, in addition to the three coordinates of linear motion, there are two rotating coordinates feeding movement. Multi-axis milling head or the table can be continuously rotating feed, and thus applicable to processing of the mold cavity surface with complex parts.
We can say that compound processing is the development direction of one of the mold. Although the processing center has been able to compound a number of machining processes on a single machine to achieve, but it still can not completely meet the mold processing, mechanical processing and electrical, chemical, ultrasonic and other different principles to complex processing methods, both technological characteristics of two or more complex process of mold manufacturing in the future, there will be a broad prospect.
I am China Manufacturers writer, reports some information about compressor unloader valve , gas lift valve.
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