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What to do when the tool vibrates in the Ballnose Stainless steel end mill


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Release time:2022-08-16 16:37

What should I do when the tool vibrates in the Ballnose Stainless steel end mill? Since there will be some small gaps between the milling cutter and the tool holder, the tool may vibrate during the machining process. Vibration will make the cutting amount of the circumferential edge of the milling cutter uneven, and the cutting and expansion amount will be larger than the original value, which will affect the machining accuracy and the service life of the tool. However, when the width of the machined groove is too small, the tool can be effectively vibrated, and the required groove width can be obtained by increasing the amount of cutting and expansion in this way. , otherwise stable cutting cannot be performed. The smaller the vibration of the milling cutter in normal machining, the better.

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The Ballnose Stainless steel end mill manufacturer tells you that when the tool vibration occurs, you should consider reducing the cutting speed and feed rate. If there is still large vibration after both have been reduced by 40%, you should consider reducing the amount of cutting.
If there is resonance in the machining system, the reason may be that the cutting speed is too high, the feed speed is too small, the rigidity of the tool system is insufficient, the clamping force of the workpiece is not enough, and the shape of the workpiece or the essentials of the workpiece clamping, etc., should be adjusted at this time. Dosage, increase the rigidity of the tool system, increase the feed rate and other measures.
The rotary operation of the milling cutter can be divided into two types. Here is a brief analysis:
First, the rotation direction of the milling cutter is the same as the cutting feed direction. At the beginning of the cut, the milling cutter bites the workpiece and cuts off the chips.
The other is reverse milling, in which the direction of rotation of the milling cutter is opposite to the direction of feed of the cut. Before starting to cut, the cutter must slide a section on the workpiece, starting from zero cut thickness and reaching maximum cut thickness at the end of the cut. The cutting force direction of the three-sided edge milling cutter is different, and some end milling or face milling. The Ballnose Stainless steel end mill manufacturer tells you that in the face milling process, the milling cutter is just outside the workpiece, so the direction of the cutting force should be paid more attention. In forward milling, the cutting force forces the workpiece into the table, and in backward milling, the cutting force forces the workpiece away from the table.
The Ballnose Stainless steel end mill manufacturer tells you that due to the better cutting effect of forward milling, forward milling is generally used, and backward milling is only considered when there are thread gaps or unsolvable problems in forward milling.