Polycarbonate roof sheets are a type of roofing material made from polycarbonate, a strong and durable thermoplastic material. These sheets are transparent or translucent, allowing natural light to enter a space while providing protection from the elements. Polycarbonate roof sheets are commonly used in applications such as greenhouses, skylights, patio covers, and industrial roofing. They are lightweight, easy to install, and offer high impact resistance, UV protection, and thermal insulation properties.
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When the carburized and quenched material is welded, since it is difficult to weld in a state in which the carburized layer remains, it is necessary to remove the surface layer (to remove the carburized layer). At this time, the chips are longer than the high hardness portion of only about 60 HRC, and it is likely to damage the machined surface of the steel or wrap around the automatic handling device, thereby stopping the machine. For this reason, the HF/HM shape improves the chip handling property in the carburizing layer removal processing by improving the shape of the chip breaker.
In both products, the HF shape for fine cutting allows the chips to be processed in the low feed rate area by providing projections at the corners. The HM shape is easy to handle the chips in the higher feed area due to the wider chip breaker. Both materials are made of cBN material "BXA40" which improves the wear resistance of hardened steel during processing.
In terms of price, the HF shape is 12,600 yen (including tax), and the HM shape is 16275 yen (including tax).
Japan's Tailuo launched a new chip breaker
According to the Nikkei BP News Agency: Tungaloy (headquarters: Kawasaki City) introduced the CBN (Cubic Boron Nitride) Chip Breaker "Hard Breaker HF/HM Shape" for turning. It is divided into two types: HF for fine cutting and HM for rough cutting, which can improve chip handling performance in various machining processes.