Custom Parts

Ohmura takes drawings made by our customers -- designs for things that simply do not yet exist on the market -- and, working from these drawings, gives actual shape and form to these ideas. Custom products are the job of No. 1 Production Department. High-skilled engineers use standard equipment, NC lathes, and machining centers to produce highly-precise, valuable, and new creations. As we introduce the latest technology, we ask ourselves, “Can this equipment be used efficiently?” It takes a true craftsman to be able to answer this question correctly. This attitude is the basis of our target to create “an amusement park for the production of customer concepts” in the near future.

The highly-precise, complexly shaped parts made by Ohmura are used for the quintessential engineering of such as aircraft and space rockets. These parts must operate in exceedingly harsh environments, enduring temperature variations from several hundred degrees below to several thousand degrees above zero. They must be made light, and are thus extremely thin. Nevertheless, they must be able to move at speeds of 300 km/hr. Therefore, these parts are at times be made from Inconel alloys and other highly heat-resistant steels, or they must be fabricated from titanium, magnesium, or other lightweight metals. At Ohmura, we have the technological capability to use tried-and-true methods as well as the newest methods to forge, to die-forge, or to machine from square stock these various materials.

At present, the most companies use CNC lathes, machining centers, and other numerical control machining equipment. At Ohmura, we also have 5-axis horizontal machining centers along with vertical NC lathes that boast chuck diameters in excess of 1 meter. However, the foundation remains the ordinary lather. It is precisely because of the skill of our people on standard lathes that they can make the best use of the latest in technology.

Using high-precision fabrication technology, Ohmura has developed the SPN85H series pressure swirl fuel nozzle for use as gas turbine fuel nozzles. As a result of design that takes account of the need for high heat resistance, these nozzles are suitable for use in fuel test equipment and in actual gas turbines. They have fine-grain features thanks to laser CT mist structure analyzers, and are provided with complete mist pattern data. The shapes of these nozzles can be modified for different applications.

This product was developed based on the results of patents filed by the German Aerospace Research Establishment (DLR) and the Research Results Optimal Transfer Enterprise/ Results Development Program B (Creative Modeling) of the German Science and Technology Agency.