Ooyama has more than 2,000 partner companies nationwide, allowing us to handle all kinds of shapes, materials, and processing methods. We also have a full range of inspection equipment, and have established a system that allows us to deliver high-quality products at all times.

Processing Technologies

With Ooyama’s superior processing technology, we can look at your product drawings and propose the optimal processing method. The most suitable processing method differs depending on the shape and precision of the part. We may also change the processing method and processing machinery according to material and lot size. Here we introduce typical processing technologies, but feel free to ask us about other kinds of processing as well.

  • Machining

    Materials such as steel, stainless steel, brass, and aluminum are cut with an edged tool. This method is suited to products that require precision. The machine tools used include lathes, milling machines, and machining centers. This method can process anywhere from just a few, to tens of thousands of parts per lot.

  • Forging

    With this method, pressure is applied to deform and shape the material.It can be performed at room temperature (cold forging) or at high temperatures (hot forging), depending on the material and size of products being forged. Since dies are used, this method is suited to mass production. Forged products are superior to machined products in terms of strength, since the fiber flow of the material is not interrupted. They also reduce material costs.

  • Casting

    With this method, liquid is poured into molds to harden into the desired shape. It is suited to mass production of relatively large products with considerably complex shapes. Sand mold casting, die casting, and lost wax casting fall under this category.

  • Pressing

    This process uses pressure to cut shapes out of sheet material, or bend them to follow the shape of a mold. It is suited to mass production. A press, which is driven hydraulically or mechanically, can form various shapes depending on the size and type of the equipment. And complex 2-dimensional or 3-dimensional shapes can be formed using the proper dies.

  • Sheet metal fabrication/bending

    Operations of this category include cutting out parts from sheet metal and bending them. It is used to make housings, such as computer cases or the exterior panels of automobiles. A wide variety of processing machines can be used depending on the needs of the project, including turret punch presses, laser cutting machines, press brakes, roll benders, pipe benders, etc.

  • Spring forming

    This method is used to make flat springs and coil springs. Both pressing and bending operations can be performed by a single machine. Three-dimensional shapes can also be formed (though there are limitations to the thickness of material that can be processed).

  • Welding/Brazing

    This method is used to join two or more parts. The number of worker-hours can be reduced compared to cutting out equivalent objects from blocks, and joining objects by partly melting them produces stronger joints. Types of welding include arc welding, spot welding, etc., and can be applied to a variety of materials such as iron and aluminum.Brazing is often used for piping components.

  • Injection molding (plastics, rubber, etc.)

    This is a method for forming plastic by heating it to soften it, then placing it into molds. It is suitable for mass-producing products with complex-shapes which are lighter than metal ones. Some types of plastics (e.g. engineering plastics and super engineering plastics) can be used in place of metal materials.

  • Grinding, plating, coating, dipping

    These operations are used to give added value to products. They can be used to apply a wide array of treatments to improve various aspects of the material, including corrosion resistance, insulation performance, and aesthetic appearance.

Inspection Technology

At Ooyama, we have been working to enhance our inspection equipment in order to perform strict quality checks and prevent the distribution of defective products. In addition to the equipment shown here, we routinely use public technical research institutes to test material properties, strength, etc.

  • Wide-Area 3D Measurement System

    Produces a high-precision 3D measurement of the surface shape of the target object through non-contact imaging.

  • CNC 3D measuring machine

    Uses a probe to measure the three-dimensional shape of a product, and calculates the dimensions and geometric shapes of the product based on the coordinate data obtained.

  • Image dimension measurement system

    Dimensions on various parts can be automatically measured in a non-contact manner by placing a product on the inspection table and pressing a button.

  • Hardness tester

    Measures Rockwell hardness, Brinell hardness, and Vickers hardness.

  • Roundness measuring machine

    This machine measures the roundness of a product by rotating it.

  • Vision measuring system

    The projected shape of a product is transferred to the computer to calculate and obtain the dimensions.

  • Height gauge

    Measures the height of a product.

  • Threaded fastener inspection equipment (image inspection system)

    Equipped with two cameras to observe all products from above and the side, this machine detects flaws, such as wrong sizes and plating defects.

  • Various gauges

    Thread gauges, pin gauges, etc. These measure the dimensions and axes of holes.

  • Calipers

    Slide calipers, micrometer calipers, etc. These measure the thickness, length, and diameter of the object.

  • Roller separator

    Detects inclusion of different products, such as those with different sizes.

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