The selection of tool back angle can follow the following principles
31 10月 2022 | 没有评论 | posted by admin | in Article
(1) For processing materials with large plasticity or elasticity, large back angle is adopted to reduce friction between back cutter faces; For processing high strength and high hardness workpieces, small back angle shall be taken to ensure the edge strength; The finishing cutting force is small. In order to reduce friction and improve the quality of the machined surface, a larger rear angle can be used;
(2) During rough machining, the cutting force is large. To ensure the strength of the cutting edge, a smaller back angle can be used; The finishing cutting force is small. In order to reduce friction and improve the quality of the machined surface, a smaller rear angle can be used;
(3) The back angle of high speed steel tool can be 2~3 degrees larger than that of tungsten steel tool;
(4) When the radial wear of the milling cutter will affect the machining accuracy, for example, the diameter of the peripheral tooth of the keyway milling cutter will decrease after the wear, which will directly affect the width of the keyway. The back angle should be appropriately reduced (generally 8 degrees).
(5) The friction between the back of the milling cutter teeth and the workpiece is the direction of re cutting speed, and the cutting thickness is smaller than that of general turning, so the wear mainly occurs on the back cutter face. Therefore, appropriately increasing the back angle of the milling cutter can reduce the wear.
What are the advantages of corn milling cutter
29 10月 2022 | 没有评论 | posted by admin | in Article
1. The machining accuracy is relatively high.
2. The corn milling cutter can replace the blade, and the overall cost performance is very high.
3. The cutting edge has strong toughness and strong vibration resistance, which can be used for manufacturing tools with general cutting speed. For machine tools with poor rigidity, high-speed steel milling cutter can still cut smoothly.
4. High temperature resistance, good cutting performance at 800-1000 ℃. The cutting speed can be 4-8 times higher than that of high-speed steel.
5. High hardness, good abrasion resistance at room temperature.
6. Good process performance, easy forging, processing, grinding, and manufacturing tools with complex shapes.
What kinds of milling cutters are there
26 10月 2022 | 没有评论 | posted by admin | in Article
Milling cutter is a kind of milling cutter, which is mainly used as a consumable cutting tool for precision machining of metal moulds, machine tool parts, various electronic machine parts, etc. (mainly used for profiling milling, profiling milling, end face milling, etc.).
The drill can only be used for axial machining, but the milling cutter can be machined in most other directions except for some shapes that cannot be machined.
The material of milling cutter is generally divided into high speed steel and hard alloy
A good milling cutter should be scientifically designed and precisely processed, and can obtain high satisfaction from customers; Use high-quality raw materials and excellent coating technology, with excellent wear resistance
Milling cutter can be divided into ball end milling cutter, flat end milling cutter, arc angle milling cutter, etc
