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At the "Japan 2013 Difficult Machining Technology Exhibition" held from July 3 to 5, Forward showcased samples of superhard alloys. These samples demonstrated a complete machining process, from roughing to finishing, achieving intricate mold shapes, fan-like structures, and more. The exhibition provided an opportunity for industry professionals to see how advanced cutting techniques can be applied to difficult-to-machine materials.
Traditionally, superhard alloys are processed using electrical discharge machining (EDM) or grinding. However, EDM often results in a softened surface layer and requires significant processing time. Meanwhile, grinding tends to have lower precision in terms of size and shape. As a result, many people still lack a deep understanding of effective cutting methods for hard alloys. But as research continues and technology advances, it is expected that both the tools and machinery used in this field will see major improvements.
Forward has been exploring innovative approaches to machining superhard alloys. They utilized a diamond-coated end mill called "UDCMX," which is known for its high performance, along with a heat-shrinkable tool holder called "SLIM LINE UNO" from MST Corporation. The machining was carried out on a high-precision CNC milling machine, the "iQ300" from Makino Milling Machine Factory. According to the project manager, this initiative is still in the early development phase and cannot yet be fully evaluated. However, if any company is interested in adopting this technology, Forward is open to collaboration.
In addition to Forward's efforts, ADTEC Engineering of Japan also presented samples of superhard alloy machining. Their demonstration included creating grooves and convex-concave patterns on the top surface of a flat cylindrical superhard alloy workpiece. Like Forward, they also used a diamond-coated end mill for the process.
This exhibition highlighted the growing interest in improving the efficiency and accuracy of machining superhard materials. With ongoing advancements in tooling and machine technology, the future of hard alloy machining looks promising.