The demand for special tools is quite large. About 80% of the tools are designed for special purposes to provide performance and processing effects. This is a supplement to the standard tools with general and special properties.
Carbon fiber reinforced plastics (CFRP) is the main material used in the field of composite processing. CFRP is a big challenge for the processing industry. It is usually difficult to process it to a competitive level. When metal (such as aluminum alloy or titanium alloy) is stacked in CFRP, the optimization of machining with cutting tools becomes a problem that non-standard tool experts consider.
In the process of composite material processing, clamping tools are also changing quietly, from hand-held tools to electric automatic feeding tools, robots to CNC machine tools. Factors such as consistency, stability and machine tool performance will vary according to different applications, thus the requirements for cutting tools will be different. More and more attention has been paid to the quality of composite machining, which is directly related to the performance of cutting tools. Even small changes are likely to cause substandard defects on the part surface. The processing technology of non-standard tool is very important for hole machining.
Drilling composite materials means cutting two kinds of materials with completely different characteristics, fiber composites with different compositions. The addition of stacked metals, such as titanium, adds a cutting quality to the material. Polycrystalline diamond (PCD) cutting edge or PCD coated cemented carbide (PCD) cutting tools with direct pressing sintering technology can usually provide satisfactory drilling quality and high efficiency. The use of vein sintering technology can produce a sharp, more impact resistant cutting edge, so as to achieve the processing results in processing applications. This kind of tool can be adapted even when the cutting force of hand operated electric drill or hand feed drill often varies due to different operators. At this time, it is appropriate to use PCD coated drill bit.
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