In most cases, the focus is to improve the production efficiency of the ability to improve the cutting edge. After the cutting edge of the cutting ability would be enhanced, you can continue to improve production efficiency. However, due to the different characteristics of different parts, then the tool overhang has become one of the important factors in the process, we are increasingly concerned about the cutting edge of the cutting vibration performance results. I.e. there exists overhangs the tendency of vibration, but, in most cases, this problem can be very minor by slowly cutting tool approaches the workpiece and to avoid, but the cutting efficiency will be sacrificed. If the tool is to be recessed into the hole or cavity will be generated deflection force, this force will cause a tendency to vibration.
Long tool overhang
Today’s processing area, the hole turning, boring, parting and grooving and milling processes require long tool overhang, and increasingly common, in some cases, the same piece may need multiple types of processes. So far, a lot of processing performance levels long overhang applications is low, just reach out of the most basic requirements of the parts can be processed, that is not to happen cutting vibration, but not from talking about productivity. Because the tool vibrates, easily lead to decreased processing safety, poor part quality, high noise levels, short tool life, and even processed waste. Therefore, often only the ability to use less than the cutting edge of cutting parameters, thus increasing the processing costs, production time is also longer.
In the milling step, the intermittent cutting operation, the process will occur in a tendency to vibration. Due to the use of long tool overhang, more milling process has vibration tendencies. Many methods can sometimes avoid induced vibration tendencies, such as using the correct cutters and tool path. However, when the tool overhang (distance spindle shank between the flange and the blade) exceed three times the diameter of the shank then, if you want the processing to meet the existing standard products, you need to take other measures.
With the tool overhang milling tool diameter for the needs of the increasing fourfold or more, we have an urgent desire to overcome the effects of vibration, because vibration limits productivity. In particular, the axial depth of cut and feed rate had to maintain a low level, so the metal removal rate has not played its due level. In many cases, both the milling or internal turning, the tool must be used for long overhangs. For example, on multi-tasking machine, B-axis tool spindle is usually close to the workpiece hinder, so you must use a long tool overhang.
In order to overcome the tendency of vibration, we need to use more high-tech means to manufacture vibration handle, which helps to better and more accurately the amplitude is reduced to a minimum. That is, we can accurately determine the type of a field of vibration damping and damping needed for the settings. In the latest research and development work, we in the design and application of vibration technology, the combination of a large number of professional and technical means and experience so as to achieve a more stable metal-cutting in the case of higher processing rate.
During processing, it is impossible to completely eliminate vibration, but now it can be fully reduced to the lowest level, and has no impact on the process. The use of advanced simulation methods, equipment and measurement systems, combined with in-depth knowledge of structural dynamics understanding, can eliminate the adverse effects of the tool on the force. The R & D work is not only to achieve a damping function, and can more accurately find the specific function of the tool overhang.
For the milling process, using the new standard adapters tool overhang and will not have an impact on processing performance. Standard adapters may be different amplitudes of two typical range to minimize the overhang. There are two different lengths of damping adapters were designed to overhang pick up four to five times the diameter and 6 to 7 times the diameter of the milling process adapters handle. Custom damping adapters allow the hanging rod cutter stretch longer. (Referred to herein tool overhang is the distance spindle shank between the flange and the blade) These adapters longer apply the most common areas in the milling tool overhangs the work. The new system can increase productivity, shorten payback time pick handle.
The milling adapters to allow increased axial depth of cut and feed rate. This can significantly enhance the potential productivity for over machining range of parts and other features bring high efficiency cavity milling possibilities, such as the use of a diameter greater than when face milling arbor slot. Potential new products can extend the tool overhang, or improve production efficiency and extended tool overhang.

This article was written by: admin

发表评论 取消回复

邮箱地址不会被公开。 必填项已用*标注

Let us know what you have to say:

Your Name *

Your Email *

在此浏览器中保存我的姓名、电子邮件和站点地址。