長野鍛工 List of Products and Services

Our company is committed to advanced manufacturing and is engaged in the development of cutting-edge technologies ahead of the world. In recent years, we have also been conducting trials for the development of new materials, new construction methods, and the manufacturing of aircraft components. This document introduces various topics, including "Upset Forging," which enables the production of high-quality, low-cost engine valves, as well as "Energy-Saving Heat Treatment Technology" and "Single Setup Die Sets." [Contents] ■Upset Forging ■Energy-Saving Heat Treatment Technology ■Single Setup Die Sets ■Ceramic Molds ■Spark Plasma Sintering (SPS) *For more details, please refer to the PDF document or feel free to contact us.

• others
• alloy
• Processing Contract

In NC lathe processing of shafts and similar items, a system will be established that automatically feeds the workpiece using a parts feeder, automatically transports the work after processing, and precisely measures dimensions such as runout, outer diameter, length, and effective diameter of threads using an image dimension measuring device, automating the entire process of sorting and discharging good and defective products. Furthermore, by automatically feeding back the measurement data obtained after precision measurement to the processing machine for corrective processing, we aim to improve and stabilize processing accuracy, achieving ultra-precision machining. Additionally, the accumulated processing and measurement data can be utilized as needed. 【Features】 ■ Fully automatic processing is possible after material input ■ Improved productivity for repetitive production ■ Automatic measurement and corrective processing within the line ■ High precision and precision machining is possible ■ Traceability of processing data is ensured *For more details, please refer to the PDF document or feel free to contact us.

• others
• NC unit
• Other processing machines

To address the high temperatures in automotive engines, we have jointly developed a new Ni-based super heat-resistant alloy, 'EXEO-NF90', with Fujikoshi Co., Ltd. (Toyama Prefecture). This product is a high-performance material with higher high-temperature strength and creep strength than stainless steel and iron-based superalloys (such as N155), and it allows for forging and assembly that cannot be achieved with high-end super heat-resistant casting materials like "INCONEL713C." Positioned between stainless steel and "INCONEL713C," we invite you to try this product that balances low cost and high performance! 【Features】 ■ Jointly developed with Fujikoshi Co., Ltd. (Toyama Prefecture) to address high temperatures in automotive engines ■ Balances low cost and high performance ■ Higher high-temperature strength than stainless steel and iron-based superalloys (such as N155) ■ High-performance material with high creep strength *For more details, please refer to the PDF document or feel free to contact us.

• others
• alloy
• Other metal materials

The High-Pressure Sliding (HPS) method is an original microstructure modification technology jointly developed by our company and Kyushu University, and we hold multiple patents for it. Although crystal grain refinement technology is being researched worldwide, there are challenges in applying it to high-strength alloys, ensuring homogeneity, and scaling up, which have prevented its practical use. In contrast, the HPS method can uniformly refine the microstructure of practical shape materials such as plates and rods. Furthermore, by developing the Incremental Feeding HPS method, which repeats HPS processing and material feeding, we have significantly improved size limitations and greatly expanded the range of applications. So far, our company has successfully prototyped parts that could not be manufactured before by refining Inconel 718 nickel-based superalloy using the IF-HPS method and utilizing the superplastic properties that emerge from this refinement. 【Features】 - Capable of refining the crystal grains of various materials such as aluminum alloys, magnesium alloys, titanium alloys, and nickel-based superalloys. - Can uniformly refine materials in practical shapes such as plates and rods. - Able to extract unprecedented potential properties such as increased strength and superplasticity.

• Plastic processing machines (cutting and rolling)
• Other processing machines
• others

Nagano Forging Co., Ltd. was established in Nagano City in 1953, and in May 2003, we celebrated our 50th anniversary, continuing to this day. Nagano Forging specializes in the processing and manufacturing of heat-resistant and wear-resistant materials, known as difficult-to-cut materials, and has acquired manufacturing technologies that are challenging to complete in overseas production. By developing our own equipment and machinery related to this, we have established and developed unique technologies. We have obtained the international quality assurance standard ISO 9001 and are committed to thorough quality management of critical safety components in the automotive industry, providing high-quality products that our customers can trust. Moving forward, we aim to promote young engineers and incorporate new ideas to develop new technologies, as all employees unite to grow as a technical group. We are confident that advancing our technology alongside the wonderful nature of Shinshu will contribute to the local community. For more details, please contact us or refer to our catalog.

• Processing Contract
• Engine parts