The reasons that cause vibration of cutting tools during metal processing

Recently, a regular customer from Canada requested that he would like to make the shank of compression bits shorter, so as to avoid vibration during processing. Our engineer suggested them not to do as it. Do you know why not? And do you know what causes vibration when machining?

Here we would like to share with you the reasons that cause vibration during processing by end mills.

1. The flute length of cutting tools is too long
2. The grip part of the shank is too short
3. The clamping part is too back of shank
4. Poor chip evacuation
5. Eccentricity tolerance of tools or chucks is big
6. Inappropriate processing parameters

Above are the main reasons, if there is other reasons, welcome to comment and share with us. We will be highly appreciated!

For above reasons of vibration, the following solutions are for your reference:

1. On base of meeting the cutting depth, to reduce the flute length as much as possible.
2. The shank length should be long enough to make sure the chuck can hold the cutting tools firmly. As you know, if the grip part of the shank is too short, the cutting tools would vibrate and even be thrown out when working. It will be very dangerous.
3. If the shank length is a little long for you, shall we must cut down the shank? Not really, we can clamp the shank as close to the flute part.
4. How to solve the poor chip evacuation? Reducing the number of blades or increase the helix angle. That is why it is important to tell your supplier what workpiece material you machining. It will help your supplier to introduce the most suitable milling cutters, taps, drills and special tools for you.
5. Eccentricity tolerance depends on the quality of the tools provided to you by your supplier. Why the same hardness of end mills, some are very cheap while other are very expensive? Because CNC machines, material and technology are different.
6. Which processing parameters is suitable? Experienced operators know how to adjust the parameters. Of course, if you cooperate with us, we will offer professional technical guidance to you.

Continue to pay attention to us www.szsunlittools.com, we will share customer cases of kinds of tools, CNC tool industry news, machining technology knowledge, and new product information from time to time, there is always one that can help you i am sure.