The advantage analysis of domestic advanced cutting new technology hardened mold processing

Reasonable selection of cutting tools and cutting parameters in CNC machining is a complex and highly professional work. It is also one of the problems that has always plagued CNC machining. Especially the hardened mold processing, which belongs to the domestic advanced cutting technology, there is no precedent that can be used for reference in the selection of tools. It is completely dependent on our continuous exploration and improvement to overcome these problems.

Processing of hardened molds

As we all know, large-scale automobile molds need a certain surface hardness to improve their durability, so most manufacturers quench their surface to increase the hardness. However, the surface deformation of the mold after quenching can only be solved by manual grinding and debugging during debugging, which is not only inefficient but also has a long production cycle. Our company took the lead in changing this process to reserve a certain machining allowance, and then began to quench the mold surface, and then perform CNC finishing. However, such processing after quenching requires the tool to perform reciprocating cutting between hard materials and relatively soft materials. It is difficult to choose a reasonable tool for processing one material, not to mention that a tool must adapt to two surface hardnesses. For different materials, we can only give priority to the processing of hardened areas of difficult-to-machine materials. (Guide: Hard turning parts cutting tools and technology can effectively reduce processing time)

The efficiency of general cemented carbide tools in processing the quenched area is significantly reduced, and the tools are prone to tooth chipping and rapid wear. However, the use of coated tools has to encounter the problem of rapid wear in the soft material area. At this time, we set our sights on the machine chuck ball head tool. The advancement of the modern tool industry has made the blades used by the machine chuck ball head tool adapt to the processing of a variety of materials.

In order to reduce the radial runout in the hard machining area, the strength of the tool holder must be considered first, and the diameter of the tool holder must be increased as much as possible. The tool holder chooses a carbide tool holder to achieve the smallest radial runout and good results after machining. . Whether it is considered from the processing efficiency or production cost, the machine clamp tool is the best choice for efficiency and cost.

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