The origin of cemented carbide blades
The carbide blade industrialized applied to metal cutting began in the 1930s. Since then, cemented carbide has evolved into the most common tool material to date. The relatively small size of the tool is often made of monolithic cemented carbide, not monolithic carbide blades only in the cutting area of cemented carbide. Early non-monolithic cemented carbide blades often weld cemented carbide to the knife body. By the 1940s, cemented carbide blade manufacturers had begun to manufacture and benefit from the cutting tools that hold the blades of the removable clamp. Compared to earlier welding cutters, the technical innovation of this brain hole and the use of mechanical clamping structure make the tool strength higher; it has now been recognized as a milestone invention, Cemented Carbide Inserts not only in the field of tool manufacturing, but also in bringing advanced and efficient processing to the entire metal processing industry.
This rapid progress for the processing industry opened up a wide range of space, and immediately improve the load-bearing capacity of the tool, so that the tool has the ability to quickly remove metal. In addition to the blade for wear failure or failure to replace the blade to become more convenient and economic cost reduction to make the protection, but also enables the production of cutting modules and knives. Cemented Carbide Inserts The replacement of the blade often needs to consider its shape, the rapid replacement of the cutting edge of the failure of several ways, in addition to the central axis of the blade, there are reversed blade positive and negative situation. The term "indexable blade", widely recognized by the industry today, has also been called: disposable tip, Cemented Carbide Inserts replaceable blade, replaceable blade.
Production of cemented carbide blades
The production technology of indexable inserts is based on the powder metallurgy technology, and the production process is as follows: preparation of cemented carbide mixture; While the basic processes have remained unchanged for decades, advances in science and technology have had a significant impact on the manufacture of blades.
In the past, the blade compacts were often artificially suppressed. Therefore, it is difficult and even difficult to make the sintering of mixture with different compaction densities. With more and more advanced industrial equipment with automation and computer control into cemented carbide manufacturing enterprises, the technical control of cemented carbide production process is more and more stable, controllable and reliable. The result is that the machining performance of the blades is becoming more and more consistent, Cemented Carbide Inserts the machining results are predictable and the machining results are not different due to the different blade batch number; The new technology also makes the size tolerance band of the sintered Blade narrower, the precision higher, and the carbide blade performance greatly improved.
Today, a typical blade press is often a computer-controlled highly assembled engineering equipment. The design of some presses can also carry out multi-axis compression. Extraordinary advances from repressive technologies have made it possible to produce blades with complex shapes, Cemented Carbide Inserts such as blades with very large differences in the tip height. Advanced pressing technology ensures that the blade shape can be harvested more optimally, not only to ensure smooth blade surface and stability of blade production process, but also to improve the precision level of blade surface. In addition, the application of modern computer aided design and manufacturing technology (CAD/CAM) has also brought benefits to the manufacture of blades, which makes it possible to improve blade design level and to obtain better shape and precision of die parts. And with the final sintering product as a guide to simulate the production process, the initial stage of the design can be modified from the design point of view of the suppression of sintering to promote the successful development of new blades.