Ultra-precision Machining Technologies
Thin Leaf Springs
We provide comprehensive support to our customers, starting from analysis and design of various spring properties. This includes behavior analysis and load and stress analysis using FEM. We also use precision machining technologies such as pressing, heat treatment and shot peening to shape the design and other technologies to evaluate and analyze products.
Features
- We can shorten the development period using abundant know-how and experience as a manufacturer specialized in springs, and product design that integrates FEM analysis.
- Using various heat treatment furnaces, we can provide integrated production from pressing and cleaning to heat treatment. NHK Spring equipment: quenching and tempering furnace, austempering furnace, vacuum furnace, continuous hydrogen atmosphere furnace etc.
- We can deal with products that require strict cleanliness. NHK Spring equipment: clean rooms, hydrocarbon washing machine, pure water washing machine, cleanliness evaluation facility.
- We can handle trial production of several units to mass production of several millions of units per month.
- We hold ISO 9000 series and ISO 14001 certifications and have received high evaluations from many automobile and electronic manufacturers especially with regards to quality. We can provide comprehensive support from development and design to trial production and mass production.
- We can provide thin leaf spring assemblies utilizing laser welding, brazing, and bonding technologies.
Possible Range of Production
Materials:
Spring steel, stainless steel, phosphor bronze, maraging steel, etc.
Plate thickness:
0.05mm to 3.5mm
Forming technique:
In particular, we focus on press forming with progressive dies that combine several of these processing methods.
*Contact us for details.
Application Examples
- Disk springs for automobile transmissions
- Pad retaining springs for automobile brakes
- Disk retaining springs for HDD
- Contact springs for electronic equipment
- Springs for double valve seat
- Element retaining springs for hybrid and electric cars
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Precision Stamped Products
Using press forming, we provide precision springs and components that are indispensible for automobiles, electronic equipment and home appliances. You can susbstantially reduce cost for products manufactured in large quantities and with the heavy use of machinery by using press forming.
Features
- Molds are manufactured at dedicated mold plants.
- For products that require mechanical characteristics such as spring properties and rigidity, we can support product design with FEM analysis technology.
- In addition to press equipment, we have cleaning equipment and various heat treatment furnaces, so we can respond to various demands.
Press equipment: 20Ton, 40Ton, 60Ton, 80Ton, 160Ton, 250Ton, 300Ton press
Barrel equipment: Rotary barrel, centrifugal barrel, roll flow barrel
Heat-treatment furnace: Atmosphere quenching furnace, tempering furnace, vacuum furnace, austempering furnace, continuous hydrogen atmosphere furnace
Cleaning equipment: Hydrocarbon washing machine, pure water washing machine
Other: Shot peening, honing - We can support products which require strict cleanliness by making them in a clean room.
- We can handle trial production of several units to mass production of several millions of units per month.
- We hold ISO 9000 series and ISO 14001 certifications and have received high evaluations from many automobile and electronic manufacturers especially with regards to quality. We can provide comprehensive support from development and design to trial production and mass production.
- We can provide assemblies utilizing laser welding, brazing, and bonding technology.
Possible Range of Production
Materials:
Common steel, special steel for springs, stainless, aluminum, brass, phosphor bronze, maraging steel, silicon steel, etc.
Plate thickness:
0.05mm to 3.5mm
Supported press technology:
In particular, we focus on press forming with progressive dies that combine several of these processing methods.
*Contact us for details.
Application Examples
- Precision springs and components for HDD (parts for motors, mechanical parts)
- Contact parts for electronic equipment
- Parts for automobile transmissions and brakes
