How to choose a suitable end mill?
With the widespread use of CNC machine tools, the public has stricter requirements on the size, rigidity, precision, durability, strength and stability of milling cutters. To improve the efficiency of milling processing, the choice of CNC milling tool is particularly important.
1. When selecting a carbide end mill, the cutting performance of the material should be considered. For example, when processing titanium alloy, high-strength steel, and stainless steel work pieces, it is recommended to choose indexable carbide milling cutters with better wear resistance.
2. We can choose stainless steel miller according to the different processing stages of the workpiece. For example, in the rough machining stage, our main purpose is to remove the margin, then we can choose a large milling cutter with better rigidity, lower precision, and higher chip removal performance. In the semi-finishing and finishing stages, The main thing is to ensure the machining accuracy and product quality. At this time, you should choose a finishing milling cutter with higher durability and higher accuracy.
3. Choose the milling cutter according to the characteristics of the area to be processed. When the processing permits, we can choose a milling cutter with a larger diameter and a smaller length-to-diameter ratio; when we are processing thin-walled and ultra-thin-walled workpieces, the end edge of the over-center milling cutter should have sufficient centripetal angle , In order to reduce the cutting force of the milling cutter and the cutting part. When processing soft workpieces such as aluminum and copper, an end mill with a slightly larger rake angle should be used, and the number of blades should not exceed 4 as far as possible.
- When choosing a suitable milling cutter, try to make the size of the milling cutter match the surface size of the workpiece to be processed. In actual production, for the peripheral contour processing of flat workpieces, end mills are usually used; when milling planes, cemented carbide milling cutters are preferred; when processing bosses and grooves, high-speed steel end mills are preferred; in machining When rough machining the surface of the blank or the hole, it is recommended to use corn cutters with carbide inserts; for some three-dimensional profiles and variable bevel contour contours, use ball end milling cutters, ring cutters, tapered milling cutters and discs More knives.
Above is some tips for you to choose a right and suitable end mill, hope it will do benefit for you. For more discussion, please feel free to contact Melody!
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