Basic introduction of CNC bending machine mould
The CNC bending machine mold is divided into the upper and lower molds of the bending machine, which are used for sheet metal forming and separate molds. The mold for forming has a cavity, and the mold to be used has a cutting edge.
Usually use T8 or T10, T10A, and better 42CrMo raw materials, it is requested to be high strength, high resistance and outstanding wear resistance. Use cold work die steel. Cr12MoV is very good information. Satisfied, process performance, the price will be high. 42CrMo is a high strength alloy quenched and tempered steel, high strength, strong tolerance or not. Can work below 500 degrees.
From the beginning of the process of CNC bending machine die, from the end of the 19th century to the middle of the 20th century, the high-speed steel was the primary representative of the CNC bending machine mold data; in 1927, Germany first developed the hard alloy CNC bending machine mold data and obtained Widely used; in the 1950s, Sweden and the United States each formed artificial diamonds, and the cutting CNC bending machine molds entered the period represented by superhard data. In the 1970s, everyone used high-pressure composition skills to form polycrystalline diamond (PCD), which dealt with the problem of sparse natural diamonds and expensive quotations, and extended the application range of diamond CNC bending machine molds to aviation, aerospace, cars, Electronic, stone and other fields. The selection of the mold data of the CNC bending machine is the root of the successful cutting process. Compared with cemented carbide, PCD CNC bending machine mold speed can reach 4000m/min, while cemented carbide only needs 1/4. In terms of the number of life, the PCD CNC bending machine mold can usually advance 20 times. From the quality of the processed surface, the effect of PCD is 30% to 40% better than that of cemented carbide. In addition, the development of CBN (National Boron Nitride) super-hard data CNC bending machine mold and external coating CNC bending machine mold has also contributed to the advancement of cutting machining skills.