フジミインコーポレーテッド Product Lineup

Cemented carbide is widely used for tools, cutting tools, molds, and jigs due to its excellent hardness and wear resistance. However, because of these characteristics, it is known as a difficult-to-machine material, and conventional processing methods have faced challenges in achieving complex shapes and longer delivery times. To address these issues, our company has developed cemented carbide powder suitable for 3D printing. It has the following features: 1) High-flow powder that contributes to high density 2) A lineup tailored to different manufacturing methods (PBF, DED, etc.) Expected applications: - High-precision press molds, special cutting tools - Repair of large structures and components, hard coatings Additionally, as a powder manufacturer, we support our customers' 3D printing with layered manufacturing by providing high-quality materials and developing and designing powders that consider different process parameters such as laser output, scanning speed, and layer thickness for each manufacturing method. If you have any inquiries or challenges regarding 3D printing with cemented carbide powder, please feel free to contact us.

In the "Knowledge Base Aichi Key Research Project" implemented by Aichi Prefecture and the Public Interest Incorporated Foundation Science and Technology Exchange Foundation, a research group consisting of Professor Makoto Kobashi from Nagoya University, Asahi Seiki Kogyo Co., Ltd., Aichi Industrial Science and Technology Comprehensive Center, and our company has successfully developed a mold for cemented carbide with internal structures using a 3D printer. We are currently fabricating cemented carbide punches with internal piping using a 3D printer, and for verification, we are using the actual fabricated cemented carbide punches in deep drawing processing. We have confirmed that there are no abnormalities in both the workpiece and the punch even after 100,000 shots, and further verification with an increased number of shots is planned for the future. Our company has developed powders with properties suitable for metal 3D printers (Powder Bed Fusion: PBF) necessary for fabricating using cemented carbide powders. The manufacturing and sales of these 3D printer-compatible cemented carbide powders have already begun. The cemented carbide punch shown in the image was fabricated by Japan Layered Manufacturing Co., Ltd.

Until now, our high-hardness powder for 3D printers has had a hardness limit of around 87HRA for the molded body, which posed challenges in applications for parts made from some ultra-hard alloys due to insufficient hardness. The newly developed hard powder has a main phase of WC-TiC-Co, and by achieving a fine microstructure, we have significantly improved the hardness of the molded body to 92HRA. This enables 3D printing of ultra-hard alloy powders that require high hardness, contributing to the resolution of conventional challenges. **Expected Applications** - High-precision press molds (extended lifespan and stabilized precision) - Special cutting tools (high wear resistance and high reliability) - Prototype manufacturing (shortened delivery times) Furthermore, since we possess metal 3D printer equipment, we can provide a comprehensive service that goes beyond mere powder sales, including ultra-hard molding tests, material property evaluations, and prototype support. For customers looking for "ultra-hard alloy 3D printing," "hard powder for metal 3D printers," or "ultra-hard powder materials," we offer a total solution that combines materials, molding, and evaluation. Please feel free to contact us for inquiries about the introduction of next-generation ultra-hard alloy 3D printing or prototype consultations.

We have proposed tungsten carbide powder (WC-Co type) as a powder for 3D printers, utilizing our long-standing expertise in granulation and sintering technology. While tungsten carbide is expected to offer excellent hardness and wear resistance, there have been challenges in its application to DED methods, such as the tendency for cracks to occur during the shaping process. To address this issue, we have released a hard ceramic metal powder (TiC-Ni powder) suitable for DED additive manufacturing. **Features:** - Hardness of 1060 HV and proven results with no cracks or pores in the shaped body* - High-flow powder that contributes to high density - Particle size tailored for DED equipment **Expected Applications:** - Repair of large structures and components, hard coatings, and alternatives to hard chrome plating If you have any inquiries or challenges regarding 3D printing with tungsten carbide powder, please feel free to contact us. *Measurement method: Hardness measured according to ISO 14577-1 and converted to Vickers hardness using a correction factor. This is a representative value measured near the surface of a 1 Line × 3 Layer shaped object with a length of 20 mm and is not a guaranteed value.