Capabilities
From raw material to finished part, inside one group.
NCA coordinates four group companies in Japan and a direct network of more than 3000 Japanese manufacturers: material supply and cutting, forging, precision machining, inspection and data-driven production. You send one drawing to one U.S. contact.
- MaterialNOSE KOZAI sources and cuts to size
- ForgingHOHWA forges and heat treats
- MachiningKOGEN and HOHWA machine to drawing
- InspectionCMM, UT, MT and material testing
- DeliveryNCA ships with documents to the U.S.
Beyond the group
A direct network of more than 3000 Japanese manufacturers
NOSE KOZAI works directly with more than 3000 manufacturers across Japan, most of them specialist small and mid-sized shops. After the material is ready, we can route the next steps to the right shop: forging, machining, inspection and other processes.
NCA and NOSE KOZAI select and manage the right shop for you and deliver under one purchase order. If your program requires its own source approval, we support that process.
KOGEN · Kagoshima, Japan
Precision and 5-axis machining
Simultaneous 5-axis machining of complex shapes in hard-to-machine materials. Prototypes, development parts, jigs and key machine components, from a single piece.
- Machining to ±0.005 mm, polishing to ±0.003 mm, depending on material and geometry
- Topology optimization in CAD for lighter parts that keep their strength
- Materials to AMS specifications sourced on request
| Machine | Maker and model | Key specification |
|---|---|---|
| Simultaneous 5-axis mill-turn center | DMG MORI CTX beta 2000 TC | Distance between centers 2000 mm |
| Simultaneous 5-axis machining center | DMG MORI DMU 50 | X/Y/Z travel 600 / 560 / 510 mm |
| High-speed machining center | Sodick UH430L | Complex shapes, precision parts |
| Vertical machining center | DMG MORI CMX 600 V | Precision parts |
| NC milling machine | Makino AVNC-74 | X/Y/Z travel 710 / 400 / 360 mm |
| Precision tool grinder | EG-100 | X, Z and C axes with scales |
| CAD / CAM | SOLIDWORKS Premium, hyperMILL 5AXIS, ESPRIT | Design, structural analysis, 5-axis programming |
HOHWA · Osaka, Japan · since 1963
Open-die forging, heat treatment and machining
Material preparation, forging, heat treatment and machining in house, so forged blanks can arrive finished and inspected. Approved works of ClassNK and Bureau Veritas. Mill certificates issued.
Typical products: open-die forgings, pipe fittings, and parts for industrial vehicles, engines, industrial and chemical machinery, and high-pressure gas equipment.
| Equipment | Specification | Units |
|---|---|---|
| Hydraulic forging press | 700 t | 1 |
| Automatically controlled heating furnace | 1500 × 1500 × 1800 mm | 2 |
| Forging manipulator | For open-die work | 3 |
NOSE KOZAI · Osaka and Shiga, Japan
Material supply and cutting
Aerospace materials, stainless steel, nickel alloys such as Hastelloy, and other high-performance metals, cut to size in our own plants. Work beyond our walls goes to our network of more than 3000 Japanese manufacturers.
Waterjet cutting avoids the heat-affected zones associated with thermal cutting, so heat-sensitive materials, slender parts and parts with many small holes keep their properties.
| Process | Maximum size | Notes |
|---|---|---|
| Waterjet cutting | 3100 × 7000 mm, up to 100 mm thick | 2 machines, 3 heads, bevel up to ±45° |
| Water plasma cutting | 2500 × 13000 mm | Large plate |
| Shearing | 16 mm thick × 6100 mm wide | With straightening for flat bar in non-standard sizes |
| Band saw | Ø530 mm | Angle cuts up to 60° |
| Circular saw | Bar stock | 5 machines for high-volume, short-lead-time cutting |
| Machining | Multi-tasking lathe, milling, turning | Inspected on a CMM |
Materials we work with
Typical grades are shown below. Through our supplier network we can source most metals, including grades not listed here.
| Family | Examples |
|---|---|
| Aerospace materials | Aircraft-grade titanium, nickel alloys, aluminum and stainless steel, including materials to AMS specifications |
| Stainless steel | 304, 316L, 310S, 410, 420J2, 630 (17-4PH), 329J4L |
| Nickel alloys | Hastelloy C-276, Inconel 600 and X-750, Incoloy 800 and 825, Monel 400 and K-500, pure nickel 200 and 201 |
| Titanium | Ti-6Al-4V, commercially pure grades |
| Forging steels (ASTM) | A105, A350 LF1 to LF3, A182 F1 to F22 |
| Aluminum | 1070, 5052, 5083, 6061 |
| Other | Alloy steels, tool steels, copper alloys, pure tungsten |
Data-driven production
Group company Dknowledge, a venture of Shiga University, a Japanese national university, applies AI, statistics and optimization to scheduling, quality and operations across the group.
Have a drawing? We will find the right shop.
Send material, quantity and target date. One part is fine.