ナカサ List of Products and Services

Our company specializes in contract processing of near-net shape materials, primarily precision castings using lost-wax casting, including machining, polishing, and electrical discharge machining. We can also accommodate machined parts, not limited to castings. We have compiled our experiences of unexpected cost reductions into materials for designers. 【Content of the Materials】 - Information for Designers 11 (Introduction to Wire Cut Machining Parts Design) - Information for Designers 12 (Methods to Prevent Design Errors) - Information for Designers 13 (Accuracy of Drill Holes) - Information for Designers 14 (Accuracy of Reamed Holes) - Information for Designers 15 (Accuracy of Hole Position) - Information for Designers 16 (Processing Time for Step Drills) - Information for Designers 17 (Examples of Cost Reduction in Design) - Information for Designers 18 (Calculation and Criteria for Process Capability) - Information for Designers 19 (Comparison of Calculated and Measured Bolt Tightening Force) - Information for Designers 20 (Differences Between Inconel 718 and 713C) *For more details, please refer to the PDF materials or contact us.

• Processing Contract

Our company specializes in contract processing of near-net shape materials, primarily precision castings using lost-wax casting, including machining, polishing, and electrical discharge machining. We can also accommodate machining from solid materials, not just castings. We have compiled our experiences of unexpected cost reductions into a document for designers. 【Document Contents】 - Information for Designers 1 (Drill Tip Angle) - Information for Designers 2 (Cost Reduction with Corner R) - Information for Designers 3 (The Power of Center Reaming) - Information for Designers 4 (Design Method for Hinge Arm Parts) - Information for Designers 5 (Designs that Cause Measurement Errors) - Information for Designers 6 (Cost Reduction with Bonus Tolerances) - Information for Designers 7 (How to Draft Screw Holes) - Information for Designers 8 (Fusion360 Drilling Guide) - Information for Designers 9 (Processing and Design Methods for Square Holes) - Information for Designers 10 (How to Create Machinable Drawings) *For more details, please refer to the PDF document or contact us.

• Processing Contract

By casting the undercut-shaped products without making molds, we can shorten the construction period. The casting method is the same as for mass-produced items.

• Turbo Pump

We mainly handle precision castings using lost-wax methods, focusing on general industrial machinery and automotive parts, as well as machining of MIM products. We can also accommodate materials containing cobalt, nickel, tungsten, iridium, and titanium. We also conduct leak tests and other inspections after processing.

• Engine parts

As shown in the diagram, the outer part is made of aluminum, while the center part is made of iron. Please use this for the development of products that achieve both lightweight and wear resistance.

• Other machine elements

As shown in the diagram, the tip has a hardness of about HRC60, while the threaded part has a hardness of about HRC45. It is machined from a single material, with the tip having a higher hardness to ensure wear resistance, and the threaded part having a lower hardness to prevent breakage. Since it is not subjected to high-frequency heat treatment, the hardness extends not only to the surface but also to the center.

• Other machine elements