In order to process heat-resistant superalloys (hrsa) with relatively high production efficiency, the corresponding processing strategy must be fully and carefully prepared. Since the turning process dominates the field of heat-resistant superalloys (at least 50% of the processes are turning), the right application of the blade is one of the keys to success, and the basic principle should be based on the right cutting. Blade cutting method. Heat-resistant superalloys (hrsa) have some unique properties, such as excellent high temperature strength, good toughness and corrosion resistance, making them suitable for steam turbines, jet engines, chemical and food equipment, medical devices and other parts applications. The only material choice. However, these properties also mean that the cutting process is quite difficult - especially when efficient machining is required. Due to the poor machinability of heat-resistant superalloys, all aspects of the entire process chain – from machine tools to cad, from tool holders to cutting edges – are well planned, selected and applied. When the cutting of the tool has a great influence on the turning process, the cutting edge of the cutting edge depends mainly on the main deflection angle of the cutting edge, especially when turning the hot super alloy, it will directly affect the competitiveness of production efficiency, because it will Directly affects the feed rate of the tool - this value largely determines the required cutting time. When the main deflection angle is large, the feed rate is mainly limited by the allowable load of the blade, and part of it is determined by the chip thickness. When the main deflection angle is small, the chip thickness must be large enough to allow the cutting edge to form chips by normal cutting rather than squeezing the surface of the workpiece. In this connection, the longer the cutting edge is, the thinner the chip is formed (in other words, the smaller lead angle produces thinner chips), and higher feeds should be used. Rate to maintain normal cutting. In addition, from the point of view of tool wear, groove wear of the cutting edge is a major problem when turning a heat resistant superalloy. The formation of grooves on the cutting edge is particularly evident near the depth of cut. This is especially true when the cutting edge has a major off-angle of 90 degrees, or when the depth of cut is greater than the radius of the cutting edge of the cutting edge. Oxidation wear at the high temperature and room temperature transitions in the cutting zone is the primary mechanism for the wear of the cutting edge grooves. The best processing performance is obtained when turning a heat-resistant superalloy with a small main angle turning tool. This is the general background for the recommended blade to be cut with a relatively small lead angle (45 degrees or less) when turning a heat resistant superalloy. The Practical Approach - Selecting the Blade First, most indexable inserts have a tool edge arc that enhances the cutting edge. If the depth of cut is less than the radius of the tool nose, the (equivalent) lead angle at this time is generally acceptable. Therefore, the round insert is particularly suitable for hot-duty superalloy turning because its blade radius is the radius of the tool tip arc described above, and usually the depth of cut is much lower than the blade radius. The r-blade (round insert) provides a small lead angle over a wide range of depths of cut. When using a round blade to cut a heat-resistant superalloy, the depth of cut should be about 15% of the blade diameter, not 25% higher. A square insert with a 45 degree lead angle is a good choice if a large depth of cut is required beyond the working range of the circular insert. It is ideal for heavy duty roughing of heat resistant superalloys. The s-blade (square blade) has a strong cutting edge and is ideal for roughing. If for some reason the tool is limited to cut into the workpiece, or if the same tool must be used to turn the outer and end faces, or the finished car cavity, and the workpiece is not stable or thin-walled, you should choose the right tool radius. Diamond shaped blade. But in many cases, the xcel insert is the best choice for a semi-rough/finishing process. This type of insert combines the advantages of a small main angle of the square insert with the strength of the cutting edge and the flexibility of the diamond insert in the direction of the pass. The advantages include better tool accessibility, slowing the tendency of groove wear, and reducing the diameter. Cutting force and constant chip thickness. It is especially advantageous to use a xcel blade rough step. The final stage of the machining strategy includes the choice of insert geometry and material as well as the correct cutting parameters. The choice of these factors must take into account the material of the part, the structural design and the specific conditions in the cutting process. As for the cutting parameters, it refers to the three factors of cutting speed, feed rate and depth of cut that cannot be ignored. In the actual application process, the tool path strategy has become more and more important, and the correct tool path strategy can bring great benefits to users. Composite Fiberglass Asphalt Felt,High Strength Asphalt Felt,Asphalt Fiberglass Mesh Choice-Link Trading Co., Ltd. , http://www.wfwaterproof.com