Stabilizing hole accuracy with water jet processing.
■Overview of Processing Example Product Name: Rectangular Perforated Gasket Dimensions: 1.5t 45W×145L (22φ×2・11φ×1) This processing example involves the production of a rectangular plate-shaped gasket using TOMBO No.1995. It features a design with three holes of different diameters, serving as both fastening bolt holes and fluid passage holes. It is used in piping connections for industrial machinery, where the accuracy and reproducibility of hole positions are emphasized. Water jet processing was employed to avoid excessive stress on the material, stabilizing hole diameter and position accuracy. In particular, it suppressed burrs and distortions even in small diameter hole processing, reducing misalignment during assembly.
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■Product Features (TOMBO No.1995) TOMBO No.1995 is a general-purpose joint sheet made by blending inorganic fibers and aramid fibers with oil-resistant rubber (NBR). It is compatible with fluids such as water, oil, and brine, and excels in the balance of workability, sealing performance, and flexibility. It is commonly used as gaskets for piping flanges and equipment in various factories across many fields. ■Processing Method (Water Jet Cutting) Water jet cutting is a water pressure cutting machine that uses high-pressure water to cut materials. It processes by spraying high-pressure water. The injection nozzle can be changed according to the processing material, allowing for the production of high-quality products in a short time. Additionally, the dimensional tolerances that are typically achieved through manual processing are significantly improved, resulting in stable processing accuracy. The taper on the cut surface from press processing can also be improved with water jet cutting.
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■Q&A Q1. Is it possible to process using provided drawings? A. Yes, it is possible. We will process from drawing data such as DXF and PDF. Q2. Can you accommodate small lot orders? A. We can flexibly accommodate from one prototype to mass production. Q3. Can I consult about material selection? A. We will check the fluid used, temperature, and fastening conditions to propose the optimal material. ■Daiko's Capability Daiko provides consistent support from material selection to processing method proposals and shape optimization. We can flexibly accommodate prototypes, small lots, and custom shapes, and we can also support stable supply during mass production. We welcome technical consultations based on applications and fluid conditions.
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Company information
Daiko is a manufacturer specialized in processing various industrial products, including gaskets and packing. With industry-leading processing equipment, including one of Japan's largest water jet cutting machines, and a wide range of materials such as joint sheets, rubber, resin, and metal, we meet our customers' diverse needs. Leveraging the technology and experience we have cultivated over 50 years, we provide high-quality, short-lead-time, and low-cost products to contribute to solving our customers' challenges. To respond to our customers' varied needs, Daiko's production bases are equipped with various processing facilities. Among them, the water jet cutting machines, with a total of four installed at our Osaka headquarters and Tokyo branch, boast one of the largest scales in the country. The maximum processing range is W4,000 × L5,500 mm, allowing for the high-precision manufacturing of large-diameter gaskets and packing. By maximizing material efficiency, we achieve the provision of 'high quality at low cost.'
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